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Wind Energy Developments in South Africa: A Delineation...
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Wind Energy Developments in South Africa:
A Delineation and Analysis of Barriers and Obstacles
Darling Wind Farm
A Research Report
presented to
The Graduate School of Business
University of Cape Town
By Sabine Raab
December 2008
Supervisor:
Professor Anton Eberhard
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
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Acknowledgements
I wish to thank my supervisor Professor Anton Eberhard for guiding me
through the research, as well as Glynn Morris and Mike Goldblatt for their
valuable support of my research plan.
A big thank you to all those interviewed for their detailed answers and
insights.
This report is not confidential.
It may be used freely by the Graduate School of Business.
I certify that except as noted above the report is my own work and all
references used are accurately reported in footnotes.
Signed: _______________________
Sabine Raab
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
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“When the wind rises, some build walls,
others build windmills”
Chinese proverb
Abstract: Worldwide renewable energy projects are growing at a remarkable speed.
South Africa, a country that has a big potential to generate electricity from renewable
energies, especially from wind energy, has so far neglected to develop and invest in
these resources. This despite increasing electricity demands through growth in
population and industry, escalating electricity costs and alarming environmental
concerns.
This research paper identifies the main hurdles that presently impede potential wind
energy developments from being implemented. They are identified and analyzed
through primary research, in the form of interviews. The findings reveal a variety of
barriers, where the lack of government commitment and supportive policies seem to
be the central issue. This leads to uncertainties and consequently reinforces a
number of other obstacles such as difficulties in establishing favorable power
purchase agreements and forecasting income streams, and this consequently means
insecurities for investors. Long lead times for supplying technical equipment and
unanswered questions around grid connection add to this quandary.
Lessons learnt in nations leading in renewable energies are discussed and their
supportive policies are compared. The report suggests recommendations to stimulate
market penetration of wind energy projects in South Africa.
South Africa has an abundance of renewable resources leading to numerous
potential renewable energy projects that could be implemented as soon as the
current barriers are overcome.
Keywords: South Africa, renewable energy, wind energy, obstacles and barriers, renewable
energy policies, feed-in tariffs, Darling, Klipheuwel, Eskom, PPA, coal, electricity.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
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“Everyone has the right
to an environment that is not harmful to their health or well-being, and to have the environment protected for the benefit of present and future generations through reasonable legislative and other measures that prevent pollution and ecological degradation, promote conservation, and secure ecologically sustainable development and the use of natural resources while promoting justifiable economic and social development.” — The South African Bill of Rights.
Wind Turbine at Darling Wind Farm
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
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Table of Contents
Acknowledgements ................................................................................................................ 2
Abstract: .................................................................................................................................. 3
Keywords: ............................................................................................................................... 3
Table of Contents ................................................................................................................... 5
List of tables ........................................................................................................................... 7
List of figures .......................................................................................................................... 7
List of pictures ........................................................................................................................ 7
List of abbreviations .............................................................................................................. 8
Chapter 1 – Introduction ...................................................................................................... 10
1.1 Area of study/Objective ............................................................................................ 10
1.2 Purpose and significance of the research ................................................................ 10
1.3 Key research questions ........................................................................................... 12
1.4 Methodology ........................................................................................................... 13
1.4.1 Primary research .................................................................................................... 13
1.4.2 Comparison of international literature .................................................................... 14
1.5 Layout of the report .................................................................................................. 15
Chapter 2 - Literature review ............................................................................................... 16
2.1 Analytical Framework ............................................................................................... 16
2.2 Comparison of policy and regulatory mechanisms .................................................. 19
2.2.1 Feed-in tariffs – a pricing system ........................................................................... 20
2.2.2 Obligation/Certificate system – a quota system ..................................................... 25
2.2.3 Tendering system – a quota system ...................................................................... 27
2.2.4 Fiscal incentives ..................................................................................................... 29
2.2.5 Other renewable energy policies ............................................................................ 29
2.2.6 Different countries and their policies - Combinations of support mechanisms ....... 30
2.2.7 German Renewable Energy Sources Act (EEG) ................................................... 31
Chapter 3 – Wind energy in South Africa ........................................................................... 32
3.1 South Africa’s problem context ................................................................................ 32
3.2 RE and mitigation scenarios in South Africa ............................................................ 32
3.3 Supportive policies ................................................................................................... 34
3.3.1 Expression of Interest ............................................................................................ 34
3.3.2 Feed-in tariffs ......................................................................................................... 35
3.3.3 Tradable renewable energy certificate scheme ..................................................... 36
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3.4 Wind energy in South Africa .................................................................................... 36
3.4.1 Darling Demonstration Wind farm .......................................................................... 37
3.4.2 Klipheuwel Wind Energy Demonstration Facility (KWEDF) ................................... 41
3.5 Wind projects planned in South Africa ..................................................................... 45
3.5.1 Overview of projects ............................................................................................... 45
3.5.2 Eskom .................................................................................................................... 45
3.5.3 Turbine manufacture in South Africa ...................................................................... 47
Chapter 4 – Obstacles and barriers: legislation and policies .......................................... 48
4.1 Lack of government commitment and supportive legislation ................................... 50
4.2 Policy incoherency from government ....................................................................... 51
4.3 Industry structure ..................................................................................................... 51
4.4 Absence of policies on feed-in tariff to Eskom or municipalities .............................. 52
4.5 Responsibility for grid extensions to wind farms ...................................................... 53
4.6 Need for streamlining Environmental Impact Assessments ..................................... 54
Chapter 5 – ............................................................................................................................ 56
Obstacles and barriers: Financing and business models ................................................ 56
5.1 Inexperience in developing IPPs and SPVs ............................................................. 56
5.1.1 Ownership - IPP ................................................................................................ 57
5.1.2 Potential set up - Special Purpose Vehicles (SPV) ................................................ 59
5.2 Inexperience of local wind industry as project developers and project sponsors .... 61
5.3 Difficulty in financing development costs ................................................................. 62
5.4 Lack of knowledge of local financiers/banks of wind industry .................................. 62
5.5 Difficulty in securing long-term PPAs to provide reliable revenue stream to service debt and reward equity ....................................................................................................... 63
5.6 Low cost of conventional electricity & need for feed-in tariff or price support .......... 64
5. 7 Global credit crunch and scarcity and cost of capital ............................................... 65
5. 8 Inexperience in accessing Carbon Financing .......................................................... 66
Chapter 6 – Policy recommendations ................................................................................ 68
6.1 Need for policies to enable renewable (wind) energy .............................................. 68
6.2 Feed-in tariffs for South Africa ................................................................................. 69
Chapter 7 – Conclusion ....................................................................................................... 72
Bibliography ......................................................................................................................... 74
Appendix 1 – List of individuals interviewed ..................................................................... 82
Appendix 2 – List of planned wind projects in SA ............................................................ 84
Appendix 3 - Facts about Wind Energy .............................................................................. 85
Appendix 4 – Additional obstacle: Lack of information ................................................... 91
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List of tables Table 1: Renewable energy policy instruments (Martens et al, 2001) (GWEC, 2008) ........... 30
Table 2: Operation statistics Klipheuwel (Smit et al, 2004) .................................................... 43
Table 3: List of individuals interviewed ................................................................................... 83
Table 4: List of planned wind projects in SA .......................................................................... 85
Table 5 : Components of a wind turbine (Sunflower, 2008) ................................................... 87
List of figures Figure 1: Wind capacity installed ........................................................................................... 19
Figure 2: Location of the Darling Wind Farm, Western Cape (EEU, 2004) ............................ 37
Figure 3: Location Klipheuwel (Smit et al, 2004) .................................................................... 43
Figure 4: Location of planned Eskom wind facility in Matzikama area (Savannah, 2008) ..... 46
Figure 5: Areas of obstacles………………………………………………………………………..49
Figure 6: Financial Model of a Special Purpose Vehicle………………………………………..60
Figure 7: Returns with and without CDM………………………………………………………….67
Figure 8: Wind Turbine……………………………………………………………………………...86
List of pictures Picture 1: Darling Wind Farm…………………………………………………………………. Cover
Picture 2: Wind Turbine at Darling Wind Farm……………………………………………………4
Picture 3: Klipheuwel Wind Energy Demonstration Facility (Savannah, 2008) ...................... 41
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List of abbreviations
BEE Black Economic Empowerment Btu British thermal unit CDM Clean Development Mechanism CEF Central Energy Fund CH4 Methane CO2 Carbon Dioxide CSIR Council for Scientific and Industrial Research DANCED Danish Cooperation for Environment and Development DARLIPP Darling Independent Power Producer DBSA Development Bank of Southern Africa DEAT Department of Environmental Affairs and Tourism DECAS Department of Environmental and Cultural Affairs and Sport DME Department of Minerals and Energy DNA Designated National Authority EEG Erneuerbare Energien Gesetz (Renewable Energy Sources Act) EEU Environmental Evaluation Unit EIA Environmental Impact Assessment eREACT e-Parliament Renewable Energy Activists ERPA Emissions Reduction Purchase Agreement EU European Union GDP Gross Domestic Product GEF Global Environment Facility Office of Monitoring & Evaluation GHG Green house gases Gt CO2-eq Gigatons of CO2–equivalent GWh Giga Watt hours IDC Industrial Development Corporation IPP Independent Power Project IRR Internal Rate of Return kVArh Kilo Volt Amps Reactive Hours KWEDF Klipheuwel Wind Energy Demonstration Facility KWh Kilo Watt hour LTMS Long Term Mitigation Scenarios O&M Operations & Maintenance Mt CO2-eq Million tons of CO2–equivalent Mtoe Million Tons of Oil equivalent MTPPP Medium Term Power Purchase Programme MW Mega Watt, 1 MW = 1,000,000 Watts NERSA National Energy Regulator of South Africa N2O Nitrous Oxide
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PJ Peta Joule, basic unit of energy, 1 PJ = 1015 Joules PPA Power Purchase Agreement RE Renewable Energy ROE Return on Equity SA South Africa SANTREC South African National Tradable Renewable Certificate Team SATIB South African Tradable Renewable Energy Certificate Issuing
Body SAWEA South African Wind Energy Association SAWEP South African Wind Energy Programme SABREGen South African Bulk Renewable Energy Generation SPV Special Purpose Vehicles REFIT Renewable Energy Feed-In Tariff rpm rotations per minute TRECS Tradable Renewable Energy Certificate System VAT Value Added Tax
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Chapter 1 – Introduction
1.1 Area of study/Objective
Wind energy developers in South Africa are facing numerous barriers and obstacles
that have prevented the establishment of a wind industry so far. Interviews with
individuals involved in planning, developing, consulting or financing potential wind
projects, as well as government officials and wind experts, provide a broad spectrum
of opinions and insights about the current situation. Moreover, suggestions are
offered how current obstacles could be overcome. This research inquires into the
different policy and legislative options in countries that have successfully developed
wind energy on large scales and provides recommendations for South Africa.
1.2 Purpose and significance of the research
Global atmospheric concentrations of green house gases (GHG), like CO2, CH4, and
N2O, have risen tremendously since the beginning of the industrial era due to human
activity. Between 1970 and 2004 they have increased by 70% (Intergovernmental
Panel on Climate Change, 2007). The culprits are primarily the vast industries in
developed countries. Yet it has become each single nation’s responsibility to reduce
further GHG emissions in the interest of managing global warming and protecting the
environment.
South Africa’s contribution to Global Warming is substantial due to the country’s
unusually energy-intense economy, especially the mining and metal processing
sectors. According to the Energy Information Administration, South Africa ranks 15th
globally in terms of electricity consumption - with 210.71 billion KWh in 2006. In 2005,
the country’s per capita total energy consumption was 113.7 million Btu compared to
Germany with 176. South Africa’s use of electricity per unit of GDP output is also very
high, with only 16 countries, like Russia and ex-CIS states having higher kWh/GDP
intensities (EIA, 2008).
South Africa relies heavily on fossil fuels, mainly cheap, indigenous coal and
imported petroleum. The state owned company, Eskom, which generates most of
South Africa’s electricity relies overwhelmingly on coal: 93% of its power production
capacity derives from coal, 5% is nuclear and 2% is hydroelectric (ESKOM, 2007).
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Globally, South Africa ranks 12th in carbon dioxide emissions from the consumption
of fossil fuels, with 423.81 million tons of CO2 in 2006 (EIA, 2008). The country’s
energy consumption is constantly rising due to economic growth and the increasing
numbers of households connected to the national grid.
Consequently, the issues of Global Warming, environmental protection, and the
foreseeable future scarcity of fossil fuels need to be taken into account when
developing a sustainable energy supply. To achieve this, the contribution of
renewable energy (RE) sources needs to be assessed and increased substantially. In
the past many renewable energy technologies were more expensive than fossil fuels;
however as technologies improve and when environmental costs are included,
renewable energy is becoming increasingly competitive. With the White Paper on
Renewable Energy of 2003, the South African government has committed to provide
increasing support in development, demonstration and application of renewable
energy. The goal is “an energy economy in which modern renewable energy
increases its share of energy consumed and provides affordable access to energy
throughout South Africa, thus contributing to sustainable development and
environmental conservation” (DME, 2003b).
Besides wind electricity generation, further possibilities of RE in South Africa include
solar resources, biomass, hydropower, wave power, and to a smaller extent other
resources like geothermal. At the moment, RE contribution to total energy generation
in South Africa is still very low; biomass contributes between 9-14% and hydropower
1% (Banks and Schäffler, 2005).
South Africa’s wind resources are potentially abundant, especially along its coastline
and the lowland / highland escarpment. The current utilization of wind energy in SA,
however, is minute.
At present there are only two grid-connected wind farms operating in South Africa,
totaling 7 turbines compared to 19,450 turbines in Germany, 3,800 in India, and
8,000 in Spain (GWEC, 2008). Both farms are situated in the Western Cape:
Eskom’s Klipheuwel Wind Energy Demonstration Facility and the Darling Wind Farm,
a National Demonstration Project (DME, 2008a). Therefore, South Africa’s wind
energy electricity generation is still in its beginning stages, whereas it has become
well established in numerous other countries worldwide.
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Globally, total installed wind energy capacity exceeded 94,000 MW in 2007, which
was 1% of worldwide electricity consumption (EERE, 2008). Within that year alone,
wind energy capacity increased by 27% with close to 20,000 MW installed,
representing about €25 billion of investment (GWEC, 2008). The leading five
countries in terms of wind capacity installed are Germany (23.7%), the US (17.9%),
Spain (16.1%), India (8.4%), and China (6.3%) (EERE, 2008).
Awareness and consequent demand for environmentally clean energy only started in
South Africa within the last decade. In the White Paper on Renewable Energy of
2003, the South African government acknowledges the apparent advantages of
renewable energies and sets long-term goals to increase renewable energies in
South Africa. In addition, the White Paper indicates the need to achieve energy
security through diversification of supply sources considering the foreseeable scarcity
of fossil fuels (DME, 2003a). However, as already indicated above, the contribution of
renewable energy and, in particular, wind energy, in South Africa is still very little.
The technology of wind turbines is now fairly mature and their application in many
other countries is often extensive. Hence technological development would not
appear to be a barrier for wind energy projects in South Africa. An analysis of the
following key research questions will seek to identify and understand true obstacles
and barriers, compare international experiences, and discuss possible solutions.
1.3 Key research questions
The focus of this research is to understand why there are so few wind energy
developments in South Africa. What are the main barriers and obstacles that wind energy developers face in South Africa and how can these be overcome? International experience suggests that possible barriers can be grouped into two
broad areas: enabling policies & regulations and financing & business models. These
issues are analyzed on a theoretical level as well as practically in dialogue with wind
energy developers by posing the following subsidiary questions:
A To what extent are existing policies and regulations a barrier to wind energy developments in South Africa and what policies and regulations
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need to be put in place by government to support wind energy developments in the country?
Analyzing this question will lead to possible steps that can be taken by the
South African government. They will support a sustainable development of
wind energy supply in the interest of lowering green house gas emissions; they
will protect the environment and will achieve a substantial increase in the
percentage contribution made by wind energy sources to power supply.
Based on global comparisons, international experiences and an analysis of the
local policy and regulatory environment, this research focuses on the main
policy and regulatory alternatives: feed-in tariffs, obligation/certificate systems
and tendering mechanisms.
B To what extent is the availability of finance a barrier to wind energy development in South Africa and how best can these developments be financed?
This questions aims at the issues of financing wind energy projects of different
scales and according to the risks involved. It investigates who are the potential
sponsors and financiers of wind projects. The answer will include uncertainties
holding back international investors from engaging in RE projects in South
Africa. The research will also analyze opportunities for Independent Power
Projects (IPPs) and the range of factors relevant for a successful business
model.
1.4 Methodology
1.4.1 Primary research
Primary research was carried out through semi-structured interviews with a total of 29
individuals, all closely connected to the topic of wind energy, including potential wind
energy developers and investors, Eskom, municipalities, Government officials from
different departments (DME, NERSA) and the South African Wind Energy
Programme (SAWEP), the City of Cape Town, and renewable energy experts. A list
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of these individuals is provided in appendix 1. The purpose was to identify the range
of South African wind energy developers and their projects and to gather their
practical experiences and opinions around the above mentioned research questions.
The variety of different sources provided firsthand knowledge and a detailed picture
of issues around wind energy in South Africa. The majority of the interviews were
conducted in personal meetings, only a few of them were undertaken telephonically
or via email.
Information was gathered in accordance with the principles of qualitative research.
Qualitative research is the best approach to explore real organizational goals,
linkages and processes in organizations and to understand failure of policies and
practices (Marshall and Rossman, 1995), as it places emphasis on details, on
processes, on experimental aspects, and allows an understanding of complex
phenomena (Miles and Huberman, 1994). Qualitative research is defined as a
method to achieve insight into certain settings without making predictions about those
settings (Denzin, 2000). The interviews take place in an atmosphere of an ordinary
conversation, which puts the interview in Oppenheim’s (1992) category of an
exploratory interview, as opposed to a standardized interview, such as commonly
used in public opinion polls, market research, and government surveys. In the
interviews, open ‘attitude questions’ (Oppenheim, 1992:147) are mixed with factual
questions and lead to a collection of ideas in the contacts’ own words combined with
data. Burgess would title this interview style ‘conversation with a purpose’ (Burgess,
1984:102; in Mason, 2002:38).
The interviews were followed up by secondary communication via email and
telephone. Certain contradictions and facts which required clarity were encountered
that needed to be resolved through triangulation.
Insights offered by interviewees included in this report are mainly discussed in
chapters 4 and 5 – “Obstacles and barriers”.
1.4.2 Comparison of international literature
This research also relies on an analysis of relevant literature in order to obtain an
understanding of other known potential barriers to wind energy and how these might
be overcome. International literature provides a global overview of renewable energy
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
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generation and worldwide experiences of forerunners in this field. Relevant
documents were reviewed to establish background knowledge about renewable
energies and especially wind energy developments worldwide. This analysis includes
a comparison of different policy and regulatory mechanisms regarding renewable
energies. Moreover, mitigation scenarios according to legislation and behavior
changes are described to underpin the urgent need for environmentally friendly
electricity production.
The global picture combined with an analysis of obstacles and barriers for wind
energy developments in South Africa leads to possible recommendations for support
of renewable energies in the country.
1.5 Layout of the report
Chapter 1 - Introduction
Provides a background rationale to the topic and explains the methodology of how
the research was conducted. Furthermore, the key research questions are
introduced.
Chapter 2 – Literature review
Presents the framework used to analyze obstacles and barriers and business related
aspects of potential wind projects. Different policy mechanisms are explained in detail
and critically evaluated. This supplies important facts, and leads to the
recommendations given in chapter 5.
Moreover, it describes the way governmental regulations affect caps on countries´
emissions, which consequently lead to different mitigation scenarios.
Chapter 3 – Wind energy in South Africa
Explores South Africa’s problem context. It firstly describes policy models regarding
renewable energies that are currently being planned and developed in South Africa.
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Secondly, it introduces the few wind energy projects in the country which already
exist, and gives an overview of the bulk of potential projects currently being planned.
The possibility of local turbine manufacturing in South Africa is briefly highlighted.
Chapter 4 – Obstacles and barriers: policy and regulations
As another core chapter, identifies and analyzes the obstacles and barriers for South
African wind energy developments from the information gathered through interviews.
Chapter 5 – Obstacles and barriers: financing and business models
Explains barriers for wind projects by focusing on financial aspects and business
related issues.
Chapter 6 – Policy recommendations
Emphasizes the need for stronger policies to promote renewable energies and
recommends feed-in tariffs for South Africa as the simplest and most effective policy
to increase investments in wind energy.
Chapter 7 – Conclusion
Consolidates the previous chapters and gives a summary answering the key
research questions.
Chapter 2 - Literature review
2.1 Analytical Framework
Global warming is one of the most serious environmental problems facing the world
today. The international community agreed that human activities leading to GHG
emissions need to be controlled in a global manner by drafting the United Nations
Framework Convention on Climate Change (UNFCCC) and the subsequent Kyoto
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Protocol. South Africa ratified the Convention on August 29, 1997 (International
Conventions and Protocols on Climate Change, 2008).
The Global Environment Facility (which supports the UNFCCC) argues that
sustainable market transformation favoring renewable energy projects is needed to
successfully reduce and avoid GHG emissions. Their study analyzes the key barriers
that need to be overcome to achieve such a market transformation; these are
“enabling policies, increased access to finance, adequate business/enterprise
capability and infrastructure, increased awareness, and diffusion of technology and
innovation” (Eberhard and Tokle, 2004:viii). Inter alia, emphasis is put on
policymakers’ capacity to develop climate-friendly policies, laws, and relevant power
sector regulations, as well as on financing and business viability.
For the purpose of answering the key questions around the barriers and obstacles
concerning wind energy developments in South Africa, this research will utilize the
broad analytical framework identified by the Global Environment Facility and will
concentrate mainly on the first three areas: enabling policies and regulations,
financing and appropriate business models.
The analysis in chapter 5 of financing and business model utilized the framework
developed by Gratwick and Eberhard’s (2008) study of independent power projects in
Africa. Most wind energy developments are likely to adopt the IPP model: i.e. private
developers relying on project finance. IPPs are seen to introduce private participation
and competition in the power generating system of a country and might offer fast and
relatively straightforward solutions to worsening supply deficits, as well as providing a
benchmark to state-owned supply. IPPs can become an important source of new
investment in a country’s power sector. Gratwick and Eberhard (2008) further provide
a detailed overview of the enabling factors for IPPs on a project level as well as on a
government level.
The elements government would need to provide to make an IPP’s success more
likely include:
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• a favorable investment climate in terms of stable macroeconomic policies and
good repayment records in a legal system allowing for contracts to be
enforced and laws to be upheld. Most of the African countries had incentives
for IPPs in place ranging from custom and VAT exemptions during
construction, full repatriation of profits, and TAX holidays for a certain amount
of years.
• a clear policy framework embodied in legislation that specifies a market
structure, roles, and terms for private and public sector investments.
• lucid, consistent and fair regulatory supervision improving general
performance of private and public sector assets.
• coherent power sector planning with energy security standards in place and
clarified planning roles and functions, as well as built-in contingencies to avoid
emergency power plants or blackouts.
• competitive bidding practices with a transparent procurement process to
potentially drive down prices (Gratwick and Eberhard, 2008:321).
According to Gratwick and Eberhard (2008:335-336) there are six main project issues
contributing to the success of IPP investments:
• Favorable equity partners with preferably local investment as well as
experience in developing country project risk, and expectations of a
reasonable and fair ROE.
• Favorable debt arrangements including low cost financing where the share of
local capital softens the impact of foreign exchange differences, and flexibility
in terms and conditions.
• Secure and adequate revenue streams through commercially sound metering,
billing and collections by the utility, a robust Power Purchase Agreement
(PPA), and security arrangements where necessary, such as escrow
accounts.
• Credit enhancements and other risk management and mitigating measures
including sovereign guarantees, political risk insurance, partial risk
guarantees, and international arbitration.
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• Positive technical performance in terms of availability and capacity factors as
well as sponsors that anticipate potential conflicts like operations &
maintenance or budgeting issues.
• Strategic management and relationship building where sponsors create a
good image through political relationships, development funds, effective
communications and well managed contracts.
2.2 Comparison of policy and regulatory mechanisms
Wind energy is rapidly growing worldwide and
increasingly finds its way into various new
countries. In 2007, a total of 19,865 MW of new
capacity was installed, adding to a global
cumulative installed capacity of 93,867 MW
(GWEC, 2008).
The total installed capacity however is still
geographically concentrated, with almost three
quarters found in just five counties (GWEC,
2008:8), see figure 1.
Figure 1: Wind capacity installed – Top ten countries (GWEC, 2008) International experience demonstrates that excellent wind resources are not the only
criteria to encourage and enable wind energy developments. The success of wind
power depends on a country’s enabling environment and strong political commitment
in the form of stable long-term comprehensive public policies. Such policies need to
focus on reducing costs, on improving revenues to increase profitability, and on
reducing risks for developers and investors.
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The most popular RE policy models will be discussed in the following section. They
are feed-in tariffs and quota schemes, where the latter can be divided into obligation /
certificate models and tendering systems, as well as fiscal incentives.
Research into the various types of renewable energy support policies reveals their
differences, advantages and disadvantages, and their consequences for RE in the
country. It also illustrates possible variations and design options within each policy.
To encourage industry to invest in renewable energies, a reliable and favourable
long-term policy and financial framework needs to be established. This requires a
country to set national targets for renewable energy, to remove non-technical
barriers, and to offer subsidies which motivate development of renewable energies
and augment their competitiveness in the market.
2.2.1 Feed-in tariffs – a pricing system
Feed-in tariffs can be considered pricing systems, in which RE producers are paid a
set rate for the electricity generated for a certain period of time, usually a premium to
existing non-renewable generation sources. Typically, the tariffs differ according to
the technology used, size and time of the installation, plant location, and wind
resources. They should be calculated to guarantee a profitable operation (Mendonça,
2007).
Despite the fact that there are different possible designs regarding this support
scheme, there are common key elements for successful feed-in models.
• Tariffs are valid for all potential developers regardless of their size, from
households to private developers to utility companies;
• Long-term certainty through stable policies applicable over a long period of
time, typically 20-25 years;
• Financial security through a long-term contract with guaranteed prices high
enough for developers to recover their costs and achieve a reasonable rate of
return;
• Guaranteed preferred access to the grid through its strategic development and
an obligation to purchase the power generated for the utility;
• Appropriate and streamlined administrative and application processes;
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• A cost-recovery mechanism for monopoly utilities and cost-sharing system for
utilities in competitive markets;
• Public acceptance through low cost for end consumers and creation of
awareness for the importance of RE;
• Dynamic mechanisms that reflect market, economic and political
developments and establish a level playing field with conventional electricity
generation;
• Opportunity to create a critical mass of renewable energy investment and
support the establishment of a self sustaining market (Schwarz, 2008; Sawin
2004; NERSA, 2008).
2.2.1.1 Differences in design
Feed-in tariffs have been established in more than 36 countries worldwide, including
Germany, Spain, a number of states in the US, and also developing nations including
Turkey, Sri Lanka, Nicaragua, Indonesia, Ecuador, China, Brazil, Argentina and
Kenya (Sawin, 2004).
Klein et al (2006) discuss differences in the models used in these countries. They
range from: whether or not purchase obligations exist, the guaranteed duration of the
compensation levels, to the method used for price determination. The tariff level can
either be based on the electricity generation costs from RE sources or alternatively
on the avoided external costs induced by electricity generation using RE sources.
Regardless of the method of finding a tariff level, the policy makers need to find an
acceptable balance for both the electricity generators and investors requiring a
reasonable profit margin on the one hand, and the electricity consumer on the other
hand, onto who’s electricity price the premium is added (Klein et al, 2006).
2.2.1.2 Fixed tariffs based on electricity generation costs
In the case of tariffs varying according to electricity generation costs, as in most EU
countries, a feed-in tariff should have technology-specific tariff levels. According to
the expected quantity of electricity produced and the estimated lifetime of the wind
farm, a tariff level can be determined taking the following factors into account:
• Investment for the plant
• Other project-related costs, such as expenses for licensing procedures
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
22
• Operation and maintenance costs
• Inflation
• Interest payments for the invested capital
• Profit margins for investors (Klein et al 2006) / (Mendonça, 2007).
2.2.1.3 Fixed tariffs based on external costs
The alternative concept of including external costs in the determination of a support
level, among others, can take the following possible external costs into the equation:
climate change and global warming, health damage due to air pollutants, agricultural
yield loss, material damage, and impacts on the energy supply security. In addition to
these external costs, expenses can be added that would arise without RE plants,
when the electricity would have to be generated in conventional power plants.
This pricing method is for example used in Portugal, where the system is additionally
adjusted to electricity demand with higher electricity prices during daytime than at
night.
Disadvantages described in context with this model of price determination include
high administrative complexity and low transparency, and uncertainties for investors
due to difficulties to predict tariff levels (Klein et al 2006).
2.2.1.4 Premium tariff
There are further variations to the pricing options. In Spain, for example, plant
operators can chose whether they supply electricity at a constant price set by the
regulatory authority who base it on currently existing electricity rates, or whether they
prefer receiving the varying market price plus a premium (Ragwitz and Huber, 2005).
Premium tariffs are also applied in other counties including Slovenia, the Netherlands
and Denmark. This tariff option is more market and demand orientated and therefore
more compatible with liberalized electricity markets compared to fixed feed-in tariffs.
However, risks for RE generators are higher, as the total level of the tariff is not
decided in advance and there is no purchase obligation as is usual in the case of
fixed tariffs. Consequently, prices in the premium model have to be higher to cover
the risks for RE generators. Fluctuations of the resulting tariffs can be limited by
setting a top or/and bottom limit or by having the premium vary according to the
electricity market price, as it is implemented in Denmark (Mendonça, 2007).
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2.2.1.5 Revision of tariffs
From time to time, tariff levels may need to be revised and adjusted to appropriate
levels so that the stated goals of the energy policy and financial sustainability are
achieved. In addition, generation costs of electricity may experience unexpected
changes due to variations in prices of their components or a technological
breakthrough (Klein et al, 2006). Two different methods are used to revise the level of
remuneration: Periodical revision and adjustment of tariffs and capacity dependent
adjustment of tariffs. Further questions concern whether the tariff adjustment is
exclusively for new installations or also includes already existing ones, and whether
the tariff level is linked to inflation.
The challenge in this design detail is to balance a stable policy framework with long
contracts of fixed tariffs leading to high investment security and high numbers of RE
implementations with sufficient flexibility of the tariff system to allow fast adjustments
according to changes in technology costs and in electricity prices (Mendonça, 2007).
2.2.1.6 Purchase obligation
Within their feed-in tariff system, many countries have some kind of purchase
obligations to bind grid operators, energy supply companies or electricity consumers
to buy electricity generated from RE sources. Exceptions to these obligations are
found in some countries such as Spain, the Czech Republic, and Slovenia, if RE
electricity is offered on the spot market. In Estonia and Slovakia, a system is in place
where grid operators are only obliged to buy electricity from renewable sources up to
the level of their transmission and distribution losses. Part of the reasoning behind
this limitation is that not every grid operator has a license to sell electricity and
therefore can only buy an amount of electricity equivalent to its network losses.
An evaluation of purchase obligations shows advantages, such as investment
security, low administrational complexity, and high RE exploitation in several
countries. A possible disadvantage is the limited market compatibility, as the amount
of electricity bought is independent from the demand (Mendonça, 2007).
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2.2.1.7 Stepped tariff design
In most EU countries, tariffs are designed to reflect technology-specific generation
costs and therefore vary with different RE technology, different plant size, or external
conditions at different sites, like wind yield (wind speed and duration). This method
helps sites with less favourable conditions to become profitable as such as it
minimizes the risk of over-compensating very effective plants. It keeps the costs for
electricity consumers low as it limits profit for producers at favourable sites. However,
a stepped tariff design is administratively complex and might lead to less
transparency and increased uncertainty for investors.
2.2.1.8 Technical learning and tariff reduction
Martens et al (2001) argue, that ‘fixed feed-in tariffs do not provide for incentives for
innovations and cost reductions. To counter this deficiency the appropriate regulatory
authority may lower the fixed tariff to reflect falling prices caused by technological and
operational progress.’ This can be done by lowering the tariff level for new
installations within the revision and adjustment of tariffs as described above, or by
having a predefined reduction of the tariff level by a certain percentage per year for
new installations. Germany, France, and Italy partly have such systems of tariff
digression in place, where the year of installation of a plant determines the
reimbursement, with lower rates each year. This concept minimizes the risk of over-
compensation and creates incentives for technological innovation and lowering costs.
2.2.1.9 Net metering
Sawin (2004) describes a variation on the feed-in tariff, the so-called “net-metering”
approach. It allows consumers with small renewable systems at their homes to sell
their excess electricity to the grid. The utility is obliged to buy this excess electricity at
wholesale market prices. This system is in place in Japan, Thailand, Canada, and
various states in the US. Either the producer is paid for every KWh fed into the grid,
or gets credit only to the point where their production equals their consumption. The
net metering system is beneficial to both the electricity providers as well as the
system owners. Especially during peaking hours, this excess power generated
supports the national grid by making up for increased demand.
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2.2.1.10 Advantages and disadvantages of feed-in tariffs
According to Toke (2007), the system of feed-in tariffs has proven to be the most
affective policy mechanism for promoting RE, as it is the fastest, most
technologically-diverse system at lowest costs. Summing up arguments for feed-in
tariffs, Mendonça (2007) and Sawin (2004) list the following:
• To take changes in technology and the marketplace into account they show
great flexibility in terms of their design.
• Feed-in tariffs encourage steady growth of small-and medium-scale producers.
• The transaction costs are low.
• They facilitate financing through price and revenue certainty
• They help to ease entry.
• Feed-in tariffs have shown the greatest success in developing renewable
markets and domestic industries and were responsible for most of the
additions in RE capacity and generation. Consequently they lead to the related
social, economic, environmental and security benefits.
• Through encouraging the increase in RE capacity, feed-in tariffs drive down
costs through technology advancement and economies of scale.
Mendonça (2007) sees potential disadvantages if tariffs are not adjusted over time,
as this would lead to unnecessarily high prices of RE for the end-user. Menantenau
et al (2003) argue that in a system of feed-in tariffs, project developers are not
exposed to price competition and therefore he assumes that wind power is not
delivered at the lowest possible cost.
2.2.2 Obligation/Certificate system – a quota system
While the pricing scheme of feed-in tariffs establishes a price for electricity and the
market determines capacity, in quota systems the government mandates a minimum
share of capacity of electricity to be generated from renewable energies (Sawin,
2004). The price, on the other hand, is set in the market. There are two main types of
quota mechanisms, the obligation or certificate system and the tendering system.
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Quota obligations are relatively new and currently in place in a number of states in
the US and in 7 of the 27 EU states including Belgium, Italy, Latvia, Poland,
Romania, Sweden, and the UK. Under such schemes, government sets a target of a
minimum amount of renewable energy that increases over time. Depending on the
policy design, minimum shares of renewable energy are compulsory for consumers
and/ or suppliers and/or producers. This system is often combined with Tradable
Green Certificates (Ragwitz, 2007). Eligible renewable energy producers receive
certificates for the electricity they produce, which are proof of meeting their legal
obligation as well as an additional income source, as they can be traded separately
from the physical commodity (Martens et al, 2001) (Mendonça, 2007). There are
financial penalties or ‘buy-out payments’ for non compliance in place (Butler and
Neuhoff, 2004).
Mendonça (2007:14) gives an overview of arguments for and against these systems.
Advantages:
• Promote least-cost technologies and projects, as the cheapest resources are
used first. Technologies are promoted that are closest to market
competitiveness and prices are brought down early.
• In theory, the certificate system provides certainty regarding future market
share for RE as they provide a steadily growing market for RE. However,
according to Sawin, this is often not true in practice as quota systems create a
“tendency of stop and go and boom and bust markets” (Sawin, 2008:4).
• Quotas can be coupled directly with other government policies, such as
emission reductions (Sawin, 2004).
• Certificate schemes are perceived as being more compatible with open or
traditional power markets.
• This scheme is more likely to fully integrate RE into electricity supply
infrastructure.
Disadvantages:
• Lack of experience with the system and young markets for Tradable Green
Certificates, causing investors to hesitate (Ragwitz, 2007).
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• Certificate schemes involve high risks and low rewards for equipment
manufacturers and projects developers slowing innovation.
• Prices tend to fluctuate in ‘thin’ markets, creating instability and gaming.
• Larger-scale, centralized production plants are encouraged, rather than small
investors as the investment risks are higher for them.
• Developments concentrate in areas with best resources, which might cause
possible opposition to projects. Consequently, benefits associated with RE are
missed, including jobs, economic development in rural areas, and reductions
in local pollution.
• Governmental targets can set upper limits for RE developments as there are
no incentives to install more than the mandated level. Profitability exists only
within the quota, which makes it unlikely to surpass national renewable
targets.
• Tends to create cycles of stop-and-go development. The speed with which
technologies are introduced is based on political decisions and therefore in
cases largely unrelated to technical progress and the efficiency of using RE
(Sawin, 2004).
• Certificate schemes lack transparency, are complex in design, administration,
and enforcement.
• There are high transaction costs.
• Lack of flexibility and difficulties to fine-tune or adjust in short term if situations
change (Mendonça, 2007).
2.2.3 Tendering system – a quota system
Under tendering systems, governments establish a desired level of renewable
energies and the corresponding growth rates over time. This target amount or
percentage of total capacity is specified as well as sometimes also a maximum price
per kWh. Then RE developers enter a competitive bidding process for power
purchase agreements and/or access to a government-administered fund, while
submitting price bids for contracts. In some cases, government might separate
tenders for different RE technologies, so that for example a wind farm is not
competing against a solar PV project. Commonly, proposals with the lowest bids are
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
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accepted first, followed by higher ones until the determined capacity is reached.
Developers who are successful in the bidding process are guaranteed a price for a
certain period of time and electricity providers are often required to buy a certain
amount of RE from these developers at a premium price, where the government
covers the difference between market reference price and winning bid price. In
comparison to the obligation/certificate system, the tendering mechanism is a once-
off competition for funds and contracts, where in the former developers constantly
compete in the marketplace, with existing and new projects, except they have signed
long-term contracts (Sawin, 2004).
As with the pricing law, the additional costs of RE are either covered through special
taxes on electricity or by a premium rate charged to the end-consumer.
Tendering systems have been in use in the UK, Ireland, France, the US, and China
and have often performed weakly (Mendonça, 2007). Reasons for their poor
performance might include uncertainty in the market caused by intermittency of
tenders, and the complexity of the process. Sawin (2007) suggests that unrealistically
low bids are often the result of government tendering processes involving the
assurance of funds to projects that cannot be completed. However, from a
government point of view tendering systems may offer advantages, like the possibility
to tender in specific technology bands as well as considering public interests such as
stimulating domestic industry, local employment, and the country’s export potential
(Martens et al, 2001).
As for the pricing systems, these quota mechanisms also require “political stability
and long-term credible, enforceable and consistent policies” (Sawin 2007:17). In
addition, the following requirements might be important for the success of this policy:
The scheme needs to be relevant to a large market segment; detailed purchase
obligations, end-dates, and penalties for non-compliance need to be established;
different bands need to be set according to technology type; long-term contracts are
required to reduce uncertainty for project developers; and minimum and maximum
certificate prices need to be determined (Sawin, 2007:17).
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2.2.4 Fiscal incentives
Another category of renewable energy promotion schemes are fiscal incentives.
These incentives lower the cost of RE as they reduce the prices for renewable
technologies or energy by increases in received payments or reduction in the
production costs. In addition to several EU countries, such incentives have been in
use in Japan, US and India (Sawin, 2004). This form of economic assistance ranges
from “rebates on general energy taxes, rebates from special emission tax, proposals
for lower Value Added Tax (VAT) rates, tax exemptions for green funds, to fiscally
attractive depreciation schemes” (Martens et al, 2001:85). However, these taxes
were consciously kept at a low level and did not significantly add to the exploitation of
RE due to considerations of international competition (Martens et al, 2001).
Moreover, long-term, low-interest loans and loan guarantees help reduce the cost of
capital. Sawin (2007) mentions that reducing or eliminating subsidies for conventional
energy would help creating a fair market for renewable energies. Even though this is
technically not a direct subsidy for RE, it would help renewables to become more
competitive on a cost basis. Ragwitz et al (2007) see the attractiveness of fiscal
incentives in their direct message to final energy consumers about the added value of
renewable energy projects.
2.2.5 Other renewable energy policies
In addition to the above mentioned specific renewable policy mechanisms, there are
other regulations that might contribute substantially to the development of RE
projects.
Sawin (2007) mentions the importance of policies around industry standards, like
renewable technology standards and certification, and project siting and permitting.
In addition, there is a need for regulations and policies around grid access,
transmission tariffs, or local special planning processes (Martens et al, 2001).
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2.2.6 Different countries and their policies - Combinations of support mechanisms
Taking the immense diversity of support mechanisms into account, there is no sense
in highlighting one specific instrument as the best possible instrument for all markets
under all conditions. The key to successful exploitation of renewable energy in a
country is the specific design and implementation of the support scheme rather than
the type selected. Furthermore, the additional settings in a country play an important
role. They are discussed in chapter 4 under barriers and obstacles.
Most states that are successful in renewable energies provide a combination of
support mechanisms. A brief overview of mechanisms in the ten countries with the
highest installed capacity is provided in table 1 below.
Feed-in tariff
Certificate/Obligation
Tender Fiscal incentives Tradable Green Certificates
Germany + Large subsidized loans
US (differs from State to State)
+ + + Tax incentives
Spain + Low interest loans
India (differs from State to State)
+ + Tax incentives
China + Denmark + For large
offshore wind farms
Italy +(only for solar PV)
+ +
France + for large RE projects
UK + Grant schemes + Portugal + Investment
subsidies, Tax reductions
Table 1: Renewable energy policy instruments (Martens et al, 2001) (GWEC, 2008)
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2.2.7 German Renewable Energy Sources Act (EEG)
The German feed-in tariff is part of the country’s Renewable Energy Sources Act
(EEG), an innovative driving force for the fast development of climate-friendly energy
production. Examples of the elements it includes are:
• Guaranteed duration of compensation levels for 20 years for wind
energy
• Graduated rates
• Reduction in rates is pre-defined with 2 - 6.5% per year. The
compensation level per kWh normally remains constant for 20 years for
plants in service, but it depends on the calendar year in which the plant
goes into service. The later a plant is commissioned, the lower the
compensation.
• Even distribution of burdens among electricity consumers, with the
exception of reductions for electricity-intensive industry and railways.
• Access to the grid is legally guaranteed.
• Costs of energy to compensate for fluctuation in feed-in do not have to
be paid by operators of renewable energy systems
• Bonus for innovative technologies such as fuel cells and micro-turbines,
are in place (Federal Ministry for the Environment, 2007).
The EEG is described as “the key to climate protection, new technologies and
employment. It is the basis for multi-billion dollar investments in our [German]
industry” (Federal Ministry for the Environment, 2007:14). Thanks to its overwhelming
success the Act has been imitated by many other nations.
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Chapter 3 – Wind energy in South Africa
3.1 South Africa’s problem context
In the spirit of the World Summit on Sustainable Development, hosted by South
Africa in 2002, a White Paper on Renewable Energy was assembled in November
2003 to supplement the Paper on Energy Policy. It acknowledges a significant
medium- and long-term commercial potential of renewable energies and their
potential to provide the least cost form of energy in certain cases. The White Paper
formulates a medium term target of “10,000 GWh (0.8 Mtoe) renewable energy
contribution to final energy consumption by 2013, to be produced mainly from
biomass, wind, solar and small-scale hydro. The renewable energy is to be utilized
for power generation and non-electric technologies such as solar water heating and
bio-fuels. This is approximately 4% (1,667 MW) of the projected electricity demand
for 2013 (41,539 MW)” (DME, 2003b:i). This is equivalent to replacing two (2 x 660
MW) units of Eskom’s combined coal fired power stations (EEU, 2004:22).
The key question is how will this be best achieved?
According to the DME, “government has developed a Renewable Energy Framework
in order to accelerate and expand the deployment of renewable energy technologies.
In terms of this framework, electric technologies or grid connected projects are
expected to contribute at least 6,000 GWh to the target whilst non-electric
technologies will contribute the remaining 4,000 GWh. Given government’s objective
of stimulating the renewable energy industry and encouraging smaller players to
enter this market, this framework splits the electric target of 6,000 GWh between
Eskom (40%) and IPPs (60%)” (DME, 2008c:3).
3.2 RE and mitigation scenarios in South Africa
Banks and Schäffler (2005) analyze the “potential contribution of renewable energy in
South Africa” in the light of the rising human-generated CO2 emissions and the
consequent environmental threat. They see RE as the only sustainable energy
supply option and picture three possible scenarios, depending on the volume of
renewable energies established in South Africa in the near future.
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33
The first scenario is called ‘business as usual’ and assumes only minute support from
decision-makers for renewable generation technology. A huge increase in capacity of
fuel plants would be needed, endangering both, the environment and the economic
stability. The renewable energy contribution would not exceed 4%.
The other two scenarios with increasing input of renewable energy show that
reasonable emphasis on RE is important for local capacity development, job creation,
and for cost reductions in RE technology. The authors speculate that renewable
energies might become the most cost-effective energy options in the future (Banks
and Schäffler, 2005).
The South African Department of Environmental Affairs and Tourism in cooperation
with the Energy Research Center (2007) conducted ”Long-term Mitigation Scenarios”
outlining different scenarios depending on South Africa’s reduction of GHG
emissions. These scenarios are meant to provide a sound scientific analysis as a
basis for long-term policy choices and for next steps towards mitigation in South
Africa.
The first scenario, “Growth without Constraints”, pictures the catastrophic
consequences for South Africa, if the country does not decrease its emissions before
2050, does not implement energy efficiency, and if human behavior patterns do not
change. In this scenario, RE remains minute and energy is derived from additionally
built nuclear plants, and from coal and oil. South Africa’s emissions would have
quadrupled by 2050, from 446 million tons of CO2–equivalent (Mt CO2-eq) in 2003 to
1 640 Mt CO2–eq by 2050 (Energy Research Centre, 2007).
The study further illustrates startling data that South Africa’s current development
plans, including the government’s strategies for energy efficiency and RE
contribution, will in the long-term not lower emissions significantly below the
predictions for the first catastrophic scenario.
A second scenario, the so-called “Required by Science” scenario, describes full scale
mitigation through dramatic differences in everyday life and respective emissions
trajectories.
To indicate the level of emission reductions that would be required by science, it is
assumed that emissions continue to increase only for a short while, peaking by 2020
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
34
at 473 Mt CO2-eq, before declining to 65% of base year levels. A reduction of 35%
for example would imply the highest peaks of emissions at 483 Mt in 2026, before
declining to -30% or 314 Mt in 2050 (Energy Research Centre, 2007).
The study describes strategic options and conditions for South Africa, required to
achieve the later scenario, such as CO2 tax and other incentives, as well as
emphasis on future technologies, industrial efficiency, and behavioral change
(Energy Research Centre, 2007).
3.3 Supportive policies
Despite the government’s objectives, there are not yet any policies in place that are
supportive of renewable energies. Interested parties complain that the various
sections of the government departments involved give contradicting signals about
tariffs for renewable energies and about how renewable projects will be selected
(SAWEA, 2008).
3.3.1 Expression of Interest
On October 14th, 2008, the DME sent out a call for Expression of Interest (EoI) to
entities willing to generate electricity from RE sources. Interested parties were given
until November 14th, 2008 to report about their planned projects if there was a high
probability that construction of the plant will start within 30 months. The DME
received more than 100 applications, with a majority of responses interested in wind
energy (45%), followed by biomass (34%) and small-scale hydro energy (8%). The
total estimated capacity of projects based on received responses is more than 5000
MW (Njobeni, 2008b). Amongst the interested parties, a tender process is planned to
determine which projects will be provided with PPAs to generate a certain share of
energy from renewable sources (DME, 2008c). In this case, wind energy projects not
only have to compete amongst each other but also they are in the race with other
renewable resources. This mechanism would put significant limitations on the scale
of a newly developing renewable industry. There are no high profits to serve as
incentives to install more than the mandated level and profitability will exist only
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
35
within the tender. According to the DME, this is the government’s preferred approach,
as it promotes “a number of ‘early win’ investments” and demonstrates “the potential
of the renewable energy sector to contribute to a sustainable energy mix in South
Africa. In addition, the department wants to ensure that a balanced portfolio of
projects across the different resource types is developed and supported nationally”
(DME, 2008c:3).
According to Daniel Modise (DME) the EoI was aiming to gain an overview of current
renewable projects in planning. Details about its realization are currently being
discussed (Modise, 2008, Personal Interview). This process raises a number of
critical questions that could not be answered by the DME at that point of time: Who
will run the tenders? Who will contract? How much capacity will be contracted and at
which prize? Who will sign the PPAs?
3.3.2 Feed-in tariffs
NERSA, the National Energy Regulator in South Africa, however, is working on
guidelines for feed-in tariffs, and Thembani Bukula, who oversees electricity
regulation at NERSA, announced that the feed-in tariffs would be ready by February
28, 2009 (Njobeni, 2008a). At present, the proposal and consultation papers are
being completed and consequently a NERSA sub-committee needs to approve the
processes and consent on the timelines and papers. The proposal then is made
available for public comment (Rabinowitz, 2008). Interested parties from the industry
in cooperation with a group called eREACT, e-Parliament Renewable Energy
Activists, gathered in Cape Town on November 10th, 2008 and reached agreement
on crucial aspects they would like to have included in policies regarding feed-in
tariffs. These issues range from fair access and evaluation of proposed projects, grid
connection, to methods of setting and renewing the tariffs.
The South African Wind Energy Association (SAWEA) will produce a position paper
adding appropriate suggestions for tariff prices and detailed views of wind energy
developers according to their individual project models and quotations from suppliers.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
36
3.3.3 Tradable renewable energy certificate scheme
The tradable renewable energy certification system (TRECS) captures the value
added through the environmentally friendly attributes of renewable energies and can
help facilitate compliance with governments’ renewable energy targets (DME, 2007).
Wind farms qualify as low carbon technologies and their carbon abatement potential
enables them to generate income.
The renewable energy certificate industry in South Africa is in its infancy. In March
2008, the DME established the South African National Tradable Renewable
Certificate Team (SANTRECT) to facilitate and coordinate the establishment of an
issuing body as a non-profit organization. This South African Tradable Renewable
Energy Certificate Issuing Body (SATIB) will be responsible for managing the
certificates in South Africa, beginning in March 2009. TRECS can be a seen as an
extra income stream for wind projects and can be traded worldwide (DME, 2008d).
TRECs are usually denominated in 1 MWh units. “They are priced at the differential
between the cost of renewable energy generation and the Eskom supplied cost of
coal-fired plants” (Munnik, 2008:5).
3.4 Wind energy in South Africa Estimations of South Africa’s potential total wind energy capacity vary widely.
Eskom´s estimate is currently set at only 500 to 1,000 MW (Eskom, 2006), where
more optimistic numbers are up to tenfold that number (SAWEA, 2008).
At present only about 0.05% of annual installed capacity is derived from wind energy.
This tiny amount can be divided into the following four categories:
• Connected to the national grid (total capacity: 8.4 MW) (DME, 2008a),
• Rural mini-grid (0.045 MW),
• Off-grid (0.510 MW),
• Over 20,000 bore-hole windmills countrywide (12 MW)
(DME, 2003a).
The only grid-connected systems are the Darling Wind Farm and Eskom’s Klipheuwel
Wind Energy Demonstration Facility.
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37
3.4.1 Darling Demonstration Wind farm
The Darling wind farm project was first identified in 1996. The Darling Independent
Power Producer (DARLIPP) was founded as a Proprietary Limited Company to
enable shareholding by the public. Herman Oelsner, founder shareholder and now
Managing Director of DARLIPP was the main driving force behind the Darling project.
It was declared a National Demonstration Project by the National Government in the
person of the Minister of Minerals and Energy, Phumzile Mlambo-Ngcuka, in June
2000. The wind farm is shown in the cover picture of this report. It is located at the
Moedmaag Hill on the Windhoek Farm, 12.2 km north-west of Darling and
approximately 2.2 km north of the road to Yzerfontein on the West Coast, about
75km north of Cape Town, see figure 2 below.
Figure 2: Location of the Darling Wind Farm, Western Cape (EEU, 2004)
The project was planned to be developed in three phases. Phase one is
accomplished already: four 1.3 MW wind turbines producing 5.2 MW of electricity
have been connected to the grid since March 2008. The capital cost amounted to
ZAR 75 million, including development costs. The project was made possible through
donor funding by the Danish Cooperation for Environment and Development
(DANCED), by the Central Energy Fund (CEF), and by a loan from the Development
Bank of Southern Africa, DBSA. The total of ZAR 75 million for 5.2 MW equals a very
high price of US$ 2,000 per KW. However, much of the DANCED grant was used for
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
38
development costs. Discounting any grant money, the installed costs of the wind
turbines was US$ 1,333 per KW (Oelsner, 2008).
Phase two, at present, is not being actively pursued. It will comprise six further 1.3
MW wind turbines adding up to a total capacity of 13 MW. The potential third phase
would add 10 additional turbines. However, those further developments will only be
initiated after the South African government has finalized a regulatory framework in
support of renewable energies. The first phase could only be completed thanks to
donor money, and is just covering its costs through the Power Purchase Agreement
(PPA) with the City of Cape Town and the subsidy from DANCED (Oelsner, 2008).
However, the project had to overcome 12 years of obstacles before its turbines finally
could be connected to the national grid in March 2008.
Prior to the erection of the turbines, the Council for Scientific and Industrial Research
(CSIR) monitored wind speed and direction over a 24 month period and declared the
Darling site to be a near perfect location. The average wind speed was found to be
around 7.5 meters per second at 50 meters turbine hub height. Higher wind speeds
are more frequent during the months of October to March and wind conditions are
more moderate during the months of May, June and September. The predominant
wind direction in this area depends on the season with southerly directions between
August and April and north-western winds in winter (EEU, 2004).
The Darling Wind Farm project required an Environmental Impact Assessment (EIA)
to be carried out according to the EIA Regulations (Regulations in terms of the
Environment Conservation Act, R1182, R1183, September 1997). Despite the
initiation of an EIA at an early stage of the process, the EIA was one of the main
delaying factors of the project and it took some seven years to achieve a Positive
Record of Decision.
In 1998, the Environmental Evaluation Unit (EEU) of the Department of
Environmental and Geographical Science,, University of Cape Town, was
commissioned to carry out the environmental studies. The Danish Cooperation for
Environment and Development (DANCED) covered all costs involved, and in
September 1998, the EEU submitted an EIA Scoping Report to the Western Cape
Department of Environmental and Cultural Affairs and Sport (DECAS). The DECAS
approved the report under the following three conditions: an EIA had to be carried
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
39
out, specialist studies recommended in the Scoping Report had to be undertaken,
and the public participation process was to be continued throughout the EIA process.
In June 2001, DANCED commissioned the EEU to undertake an EIA, which was
submitted to DECAS in January 2002. Six months later, in July 2002, DECAS
granted authorization for the erection of four turbines.
Subsequently, in August 2002, three appeals were received which led to a temporary
standstill. The main motivations for the appeals were that no alternative sites had
been investigated and concerns with regard to the potential impacts on birds and to
the visual impact of the turbines.
In February 2003, the Acting Minister of Environmental Affairs and Development
Planning declared that the Western Cape supported the appeals on the subject of the
concerns regarding alternative sites and impacts on birds. He demanded a new
application for authorization with the same Department, should DARLIPP wish to
proceed with the project.
After taking legal advice and eleven months without any progress, DARLIPP
instituted action in the Supreme Court (case number 515/04) in the Cape of Good
Hope Provincial Division to force the Provincial Authorities to refer the project to
National Government, the National Department of Environmental Affairs and Tourism
(DEAT). Agreement was reached before going to court and the matter was referred
to National government on February 9th, 2004. However, no decision was made by
August 2004 and DARLIPP ran the risk of losing their donor, the Danish government.
DARLIPP again instituted court action to obligate National Government to come forth
with a decision in the near future.
DEAT was identified as the appropriate authorizing agency for this application and
required the initiation of a new environmental assessment process. Since there was a
new authorizing agency a new application had to be submitted. The EEU carried out
a second scoping process to fulfill legislative and DEAT requirements. It was
submitted to DEAT in October 2004. A substantial amount of information already
existed and could be integrated into the new assessment. The EEU further examined
some issues in particular: The noise environment caused by the turbines, birdlife of
the Darling site, alternative sites that needed to be considered before starting the
wind project, and conformity to a variety of international and national policies,
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
40
including the National Environmental Management Act, the Western Cape Planning
and Development Act, and the West Coast District Spatial Plan.
Finally, in February 2005, a Positive Record of Decision was obtained and the
Darling wind project could advance. This was about seven years after the initiation of
the EIA process.
DARLIPP set up a lease agreement with the landowner of the site and established
rights to special uses of the land in terms of the Ordinance on Land Use Planning
with the West Coast District Council.
German wind turbine manufacturer Fuhrländer AG supplied four 1.3 MW wind
turbines which were installed at a hub height of 50 meters. The four turbines
generate a maximum of 5.2 MW into the national grid which is sold to the City of
Cape Town with whom DARLIPP has a PPA for the total amount of electricity
generated for a period of 20 consecutive years. Moreover, DARLIPP entered into a
wheeling agreement with Eskom which establishes that DARLIPP may feed their
electricity into Eskom’s grid from where it will be transmitted to the purchaser free of
charge (Jones, 2008).
The Darling project’s goals and purposes are manifold and can be divided into
various categories.
• Technical aspects: the project’s aim was to adapt, develop and apply existing
technology to local conditions and to act as a pilot project in the country.
• Environmental benefits:
o Saving of 100,000 tons of coal and 60 million liters of water over a 20
year period
o Reduced pollution compared to conventional electricity generation:
• 298,125 tons of carbon dioxide or 15,000 tons/annum
• 3,180 tons of sulphur dioxide
• 2,915 tons of nitric oxide
• 1,250 tons of particulates
• 19,875 tons of slag and fly ash (DME, 2005)
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
41
• Social benefits: social upliftment especially in the Darling and surrounding
areas by creation and retention of jobs and skills, and sharing wealth (e.g.
equity share holding) with the local community (EEU 2004).
• Market: “To demonstrate the generation of electricity from wind energy and its
potential to contribute positively to the infrastructural development of South
Africa within a successful and sustainable national growth and development
strategy” (EEU 2004, p7).
• Creation of awareness towards environmentally friendly energy generation.
• Pilot function: to identify barriers for possible replication of wind farms and
provide suggestions on how those barriers could be removed.
3.4.2 Klipheuwel Wind Energy Demonstration Facility (KWEDF)
The Klipheuwel wind farm was built by South Africa’s electrical utility, Eskom, in
2002/03 as part of its South African Bulk Renewable Energy Generation (SABRE-
Gen) program. KWEDF, shown in the picture below, is located about 50 km north
from Cape Town. It was designed as a demonstration project to explore the use of
wind energy for bulk electricity generation and to evaluate wind based technologies
and their economic viability.
Picture 3: Klipheuwel Wind Energy Demonstration Facility
(Savannah, 2008)
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
42
Klipheuwel was intended to play a pivotal role in reflecting change in support of
renewable energy policy and to gain skills and knowledge in a variety of areas, such
as:
• Wind turbine technologies, including different generators, blades and control
technologies
• Project and construction experience and relation to cost factors
• Local generation load profiles and associated dispatch ability and contribution
to supply peak loads
• Operation and maintenance experience
• Verification of wind resource in South Africa and associated production
forecasting
• Power quality and grid connections: local effect of wind turbines on grid and
vice versa
• The environmental impact response with regards to noise, visual impact, avian
interaction and electromagnetic interference
• Information required by decision makers and interested parties
(Smit et al, 2004)
Klipheuwel’s three turbines were commissioned from August 2002 to February 2003
and have a combined total capacity of 3.2 MW. They are a Danish Vestas V47 with
0.66 MW, a V66 with 1.75 MW, and a French Jeumont J48 with 0.75 MW (ESKOM,
2006). The KWEDF is connected via 2.6 km of 11 kV overhead lines and cables to
the Klipheuwel substation where actual energy delivered to and from the grid,
including network losses and auxiliary supplies are measured (Smit, 2008). KWEDF
was established at a cost of about R 42 million (Smit et al, 2004).
Figure 3 shows Klipheuwel’s location and Eskom’s wind speed and wind energy
density estimates in the Western Cape.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
43
Figure 3: Location Klipheuwel (Smit et al, 2004)
Eskom has made data available that contains measurements from inception till end
October 2004. In that time span KWEDF has produced 7.33 GWh. This production
was influenced by wind turbine availability, where planned outages, like scheduled
inspections and demonstrations are negligible. KWEDF produced 4.23 GWh in the
period August 2003 to July 2004 which leads to an average production of 4.6 GWh
per annum at a capacity factor of 16.7%. This is slightly lower than the initial estimate
of about 20%. Operational statistics from inception dates to October 31st 2004 are
given in the table 2 (Smit et al, 2004).
Operational Data Vestas V47
2002-08-16 Vestas V66 2002-12-17
Jeumont J48 2003-02-20
Total on 2004-10-31
Gross Energy Sent Out (kWh)
1,954,133 4,286,546 1,153,209 7,393,888
Auxiliary Consumption (kWh)
7,284 37,959 20343 65,586
Net Energy Sent Out (kWh) 1,946,849 4,248,587 1,132,866 7,328,302 Reactive Power (kVArh) 108,067 3,2905 N/A Turbine Availability (%) 90.09 91.82 79.53 Energy Utilization Factor (%)
15.23 14.79 10.32
Table 2: Operation statistics Klipheuwel (Smit et al, 2004)
Klipheuwel
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
44
Turbine availability was clearly below expectation and contributed to the overall lower
utilization factors. The major problems could mostly be corrected by replacing
defective components:
• Faulty timer on V47 that randomly operated
• Rotor current control module as main factor of V47 downtime
• Faulty contactors on V66
• Electrical motor for gearbox oil pump on V66
• Failure of hydraulic coupler on J48
• Various monitoring and adjustments needed for J48, specifically due to high
temperatures and cable twist (Smit et al, 2004).
Further, detailed data from July 2003 to June 2004 investigates Klipheuwel’s monthly
energy production according to turbine and wind resource availability.
The “wind resource was not sufficient for 27% of the time to produce a net production
to the grid, after supplying own auxiliary supplies. The output of KWEDF was limited
to 500 kW in total for a further 43% of time. It is also evident that the facility will only
generate for about 10% of the time above half of its installed capacity of 3.16 MW.
This is mainly due to the wind regime at the site, and is also typical of the area
surrounding Cape Town, excluding the Cape Point Nature Reserve where average
wind speeds are expected to be much higher than [in the] rural area of Klipheuwel”
(Smit et al, 2004:4,5).
Klipheuwel Wind Energy Demonstration Facility is contributing to various studies to
enhance understanding of wind energy related matters under South African
conditions. Smit et al (2004) report that no bird strikes were experienced in the first 2
years of operations and that no electromagnetic interference was recorded with radio
and communication sites in the immediate vicinity, within an approximate 1,5 km
radius of the wind turbines. Overall, experiences at Klipheuwel encouraged Eskom to
invest further in wind energy and currently a 100 MW wind farm is being planned for
the West coast. This project will be described in more detail in the following section.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
45
3.5 Wind projects planned in South Africa
3.5.1 Overview of projects
Wind energy projects in South Africa are still in the early development stages. The
majority of developers identified in the country are currently in the process of
finalizing decisions about their sites, putting up masts for detailed wind
measurements, and looking into preliminary environmental impact assessments.
Moreover, pre-building analysis of the grid in the areas of the projects is being done
by Eskom. None of the developers are in the actual construction phase yet. A few
entrepreneurs already have PPAs with municipalities in place. Their tariffs however
were decided at the time of initial interest, mostly years ago. Consequently, the
agreement has to be re-negotiated, as the old prices are not viable under today’s
conditions. PPAs need to include a clause for changes in policies like the
establishment of feed-in tariffs (Chown, 2008).
The list of developers identified for this research might not be complete, but gives an
idea of the number of interested parties. The sum of projects planned by the
interviewed developers amounts to a capacity of about 3,045 MW, excluding those
who had confidentiality issues, see list in appendix 2. The projects that are close to
implementation stage might add up to roughly 1000 MW. The wind farms vary in size
and include smaller projects with less than 10 MW up to large farms with up to 500
MW. There are other wind projects that might have not been identified in this
research. Five developers interviewed did not want to provide any details about their
projects. As explained elsewhere in this document, developers have different
confidentiality issues regarding size, location, and viable tariffs for competition
reasons, therefore the initial plan to show potential sites on a geographical map had
to be abandoned.
3.5.2 Eskom
Eskom Holdings Limited (Eskom) has begun development of a commercial wind
energy facility on a site within the Matzikama Municipality on South Africa’s West
Coast, as shown in figure 4 below. The necessary Environmental Impact
Assessment, undertaken by Savannah Environmental, is almost completed.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
46
Figure 4: Location of planned Eskom wind facility in Matzikama area (Savannah, 2008)
The construction and commissioning of this wind farm is designed in two phases,
with the first one consisting of about 50 2 MW industry standard turbines, planned to
generate roughly 100 MW. Eskom’s optimistic plan is to have the first unit connected
to the grid by the end of 2009. However, to date the project is already about 3
months behind schedule, with a current setback of the tender allocation. At the time
of writing this report, there is no approval of the tender yet. It was expected to be
allocated by end of November 2008. The first phase of the facility is hoped to be
accomplished by March/June 2010 (Smit, 2008).
Over a period of the last 3 years, wind measurements were taken in the vicinity of the
site. Applied to typical wind turbine performance the data leads to expectations of an
energy utilization factor of roughly 26% (Savannah, 2008).
Besides the 50 turbines and their concrete foundations, the infrastructure associated
with the wind farm and needed to enable connection with the grid will include a
substation and underground electric cabling between each turbine and the
substation, and about 40 km of overhead power line (132 kV distribution lines) from
the substation to the electricity grid at the Juno submission substation near
Vredendal (Savannah, 2008). The expected costs only for the components enabling
the grid connection are estimated to amount to about ZAR 100 million (Smit, 2008).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
47
Besides the second phase of the current wind project, which is anticipated to double
the farm’s capacity, Eskom is looking for possible sites for a large scale wind farm
with a planned capacity of 500 MW. There is no time frame for both these future
projects yet.
3.5.3 Turbine manufacture in South Africa
Local manufacturing of 2 MW turbines is planned in the Atlantis area. Isivunguvungu,
managed by the German engineer Dr. Michael Kast, sees the high potential of wind
industry in South Africa and is currently in negotiations with potential partners, South
African authorities, and future developers. Isivunguvungu is planning to build
AeroMaster 2.0 wind turbines based on the internationally proven design of Aerodyne
GmbH in Germany. Part of their concept is to manufacture most of the components
locally, including blades and generators. Bypassing import costs, availability of
turbines and spare parts, and lower transportation costs would be beneficial to
developers. In addition a whole new industry would develop in South Africa, creating
a wide field of new and specialized jobs. Estimated time for production and
presentation of a prototype is targeted for mid 2009.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
48
Chapter 4 – Obstacles and barriers: legislation and policies
Despite the abundance of the wind resource and the two mentioned small scale
demonstration wind farms there are no commercial wind energy projects up and
running in South Africa yet. This chapter gives an overview of obstacles and barriers
for these developments caused by legislation and policy deficits in South Africa. They
are gathered from interviews with wind energy developers, possible investors,
Eskom, consultants, as well as provincial and national government, adding up to 29
individuals in total. A list of the interviewees is given in appendix 1.
The findings have to be interpreted carefully as they represent indications and
viewpoints from the mentioned groups and individuals. Nevertheless, their insight
should reflect the real situation in South Africa, often including suggestions for
improvement.
Compared to international obstacles and barriers found in relevant literature, the
central issues in South Africa indicate that the country is still in its beginning stages of
developing wind energy. Hurdles described for the European market seem to
concentrate on administrative issues, in particular the high number of authorities
involved or long lead times to obtain necessary licenses, as well as permission
procedures and grid issues. Only then legislative and financial barriers are mentioned
(Coenraads et al, 2008), (Ragwitz et al, 2007). It might be of benefit for South Africa’s
approach to look at international experience and lessons learnt bypassing some
problem areas in advance.
Figure 5 illustrates the four different areas of obstacles commonly mentioned by
professionals in the industry. The main two areas are policies & legislation and
financing & business models. They answer the key research questions and the
following chapters concentrate on them.
The other two areas of obstacles in figure 5 are found to be less relevant for this
research. Issues around technology are mentioned in chapter 5.7 and a discussion
around the lack of information is attached in appendix 4.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
49
Figure 5: Areas of obstacles
Information
Lack of information about wind in South Africa
Lack of public awareness
Policies and regulations
Lack of government commitment and supportive legislation
Policy incoherency from government
Industry structure
Absence of policies on feed-in tariff to Eskom or municipalities
Responsibility for grid extensions to wind farms
Need for streamlining Environmental Impact assessment
Financing and Business Models
Inexperience in developing IPPs and SPVs
Inexperience of local wind industry as project developers and project sponsors
Difficulty in financing development costs
Lack of knowledge of local financiers / banks of wind industry
Difficulties in securing long-term PPAs to provide reliable revenue stream to service debt and reward equity
Low cost of conventional electricity & need for feed-in tariff
Global credit crunch and scarcity and cost of capital
Inexperience in accessing carbon financing
Technology
Long lead times for equipment
Currently no local production of turbines or components
Wind farms in
South Africa
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
50
4.1 Lack of government commitment and supportive legislation
Developers and investors complain about a lack of government commitment towards
renewable energies and demand the establishment of a supportive legislation
combined with the required financial support, allowing RE projects to become
financially viable. The Government’s renewable energy target of 10,000 GWh, which
equals 4% of renewable energy contribution, by 2013 (DME, 2003b) seems
meaningless without supporting steps towards reaching this goal. For scale and
speed of wind energy developments in South Africa, there is an urgent need for
policies to encourage such developments.
The levels of knowledge about potentially supportive policies varied substantially
within the professionals interviewed. There was a general consensus however, that
the instrument established is only as good as its terms, and that the policy’s
conditions must be adequate and its terms adapted to developers’ needs.
A number of voices favored feed-in tariffs as they have proven to kick-start renewable
industries in other countries and made wind energy projects worthwhile. Moreover,
feed-in tariffs were seen as crucial to make projects bankable. On the other hand,
feed-in tariffs were perceived to give security for developers but not to put pressure
on generation and technology prices (Jackson, 2008, Personal Interview).
Experiences from other countries should be studied and applied to the South African
context. Also a mixture of support mechanisms seems to be a possible solution. In
addition, some individuals mentioned that extra fiscal incentives are needed, like
special loans. A system compared to the German EEG (Erneuerbare Energien
Gesetz - Renewable Energy Sources Act) appeared favorable for many, consisting of
various factors like a feed-in tariff, the obligation for the utility to buy all RE, and a
‘pass-through’ system to finance extra costs. The feed-in conditions acceptable for
South African conditions would consist of a duration of 20 years minimum and
acceptable guaranteed tariff prices varying from 85-120 c/kWh (SAWEA, 2008). For
confidentiality issues, many developers were not prepared to mention acceptable
price ranges. In case of a bidding system being implemented, competition obviously
becomes a crucial element.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
51
With Eskom planning a 100 MW wind farm project on the west coast, some
developers and investors believe that Eskom´s experience gathered through that
process will support realistic tariffs (Potgieter, 2008, Personal Interview).
4.2 Policy incoherency from government
Developers and investors report of confusing and contradicting information from
government officials and departments involved causing uncertainty and frustration.
The industry wishes for decision makers to have a coherent policy (SAWEA, 2008).
While NERSA on the one hand, is working on guidelines for feed-in tariffs and hopes
to have them ready by the end of February 2009, the DME calls for an expression of
interest from entities willing to generate electricity from RE sources and declares they
will prepare an appropriate tender (DME, 2008c). This however would lead to a quota
policy, where a bidding system determines which projects will receive PPAs, until a
certain share of energy is being generated by different renewable sources. Different
potential dangers are seen in this scheme, for example wind energy projects might
have to compete not only amongst each other but also with other renewable sources.
This would clearly put limitations on the scale of industry around renewable energies.
Moreover, developers are concerned as the DME has no track record and no
expertise regarding bidding systems (SAWEA, 2008).
4.3 Industry structure
The South African electricity industry is dominated by Eskom, whose ownership vests
in the South African government. It is a vertically integrated operation that generates,
transmits and distributes electricity, without any serious competition in the country.
Eskom is responsible for 95% of South Africa’s and roughly 50% of the whole of
Africa’s energy supply. Looking at the diverse tasks Eskom handles in addition to its
current struggle with capacity shortages and increasing demand, renewable energies
are only a very small focus of Eskom’s whole range (Smit, 2008, Personal Interview).
The described structure of the electricity sector with Eskom incorporating three
divisions (generator, transmitter, and buyer) under one umbrella is seen as a
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
52
potential source of bias towards favoring its own developments, even if they might be
more expensive and less profitable. Eskom, as the monopoly organization, must
either demonstrate its commitment to promote RE participation in the market or
another organization must be appointed to ensure fair access and unbiased
evaluations of proposed projects. Strong governmental policies and regulations are
needed to set clear rules and consequently limit Eskom’s authority. With Eskom as
the single buyer as proposed in NERSA’s guidelines, supportive policies like feed-in
tariffs are needed to ensure that Eskom buys RE for a fixed tariff and wheels it to the
end-user.
The close and non-bureaucratic cooperation between developers and Eskom
concerning grid connection and wheeling of the energy is seen as essential for the
success of wind projects (SAWEA, 2008).
4.4 Absence of policies on feed-in tariff to Eskom or municipalities
The described lack of supportive legislation for renewable energies (Chapter 4.1)
includes the absence of price support systems for RE. Wind project developers
experience difficulties in receiving acceptable prices for their electricity. As there is no
governmental support of renewable energy prices so far, the average prices offered
for renewable energy are too low to make RE projects feasible (Oelsner, 2008).
Potential price support mechanisms include for example fixed feed-in tariffs, or a
premium system, where the generator is paid the varying market price plus a
premium (Ragwitz and Huber, 2005).
Besides Eskom, municipalities or large industrial companies, such as mines, are the
only possible buyers of RE. Appetite for green electricity is still very limited in South
Africa. Marketing Surveys and Statistical Analysis (MSSA, 2004), commissioned by
the United Nations Development Programme South Africa, undertook a survey to
assess the market for renewable electricity amongst businesses and industries in
area of Greater Johannesburg. They found, that municipalities and industry do not
yet have enough awareness of environmental concerns. Despite a general interest in
using green energy, half of the companies are not ready to pay a premium for
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
53
electricity produced from renewable sources (MSSA, 2004). Only few municipalities,
like Port Elizabeth or Beaufort West are currently tendering for renewable energy
projects.
4.5 Responsibility for grid extensions to wind farms
South Africa's national transmission grid is made up of roughly 27,000 kilometers of
power lines. The main generating stations are located in Mpumalanga province,
where the vast coal reserves are found. Wheeling electricity to the Western Cape
leads to about 15% offset transmission costs. Wind farms and other RE projects in
various areas will de-centralize power generation, reduce long wheeling distances,
and will help to save costs for Eskom. However, in many areas, the national grid
would need to be up-graded or re-built to handle the additional capacities from these
sites (Smit, 2008, Personal Interview).
Precedence for renewable energy wheeled through to the national grid is the Darling
Demonstration wind farm described in chapter 3.
Eskom’s transmission license mandates third party access. However, some more
radical parties would prefer that transmission was not Eskom’s responsibility and
dealt with by a completely separate entity. There was general consensus that
legislation needs to oblige Eskom to grant priority to renewable energy projects when
it comes to the building and extension of grids and dispatching priorities. In addition,
Eskom must not be allowed to offload costs of network reinforcements onto
renewable energy projects (SAWEA, 2008). The details regarding up-grading of the
grid and wheeling charges need to be decided and established as part of the policy.
Moreover, connection costs to the network need to be rationalized to provide
adequate individualized protection depending on the capacity of the equipment and
the operation of the network without overburdening the individual project. Smaller
units require less sophisticated controls and protection compared to huge units (Smit,
2008, Personal Interview).
The process of attaining grid access for RE projects follows an Eskom internal
Network Asset Creation process as used for other supplies. Developers start with
filing a written request for a quote for grid connection with Eskom Customer Services.
Lead times for projects may vary, based on complexity and infrastructure required.
Current lead time is about three years to allow for an EIA, to build line routes,
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
54
associated planning, design, execution, and commissioning, etc. Substations alone
may become operational faster. With Eskom’s current pressure on resources, longer
lead times are more realistic (Smit, 2008, Personal Interview).
4.6 Need for streamlining Environmental Impact
Assessments
An EIA determines the environmental feasibility of a planned facility. It identifies and
analyzes environmental impacts associated with all phases of the project including
design, construction, and operation. The assessment and its approval currently take
up to 2-3 years (Smit, 2008, Personal Interview). The EIA report aims to provide the
environmental authority, the Department of Environmental Affairs and Tourism
(DEAT), with sufficient information to make an informed decision regarding the
proposed project. Developers interviewed that have gone through the process of an
EIA describe it as a slow and cumbersome process with some delays being
potentially caused by factors like the lack of capacity within provincial government,
and as a consequence being unable to deal timeously with the applications;, their
inability to understand the information given, as not many have had experience with
wind farms, as well as the huge cost of the EIA itself (up to ZAR 80,000). It was
described as one of the biggest hurdles in the development of the two
demonstrations wind farms. Especially in case of the Darling project the process of
evaluating and approving the environmental findings was one of the main delaying
factors (Oelsner, 2008; Smit, 2008; Personal Interviews). streamlining the process of
environmental assessment of planned wind projects will be important in order to
shorten the development process for projects.
Additional steps before feasibility of a wind farm is proven are also time consuming
and expensive. In addition, time delays due to bureaucracy present another concern
(Oelsner, 2008, Personal Interview). After a possible site is identified and contracts
with the land owner are in place, detailed wind measurements need to be performed.
They need to be carried out on site at the right height for at least twelve months to
produce a representative profile of wind data. Putting up a mast of more than 15
meters height however requires a basic environmental assessment, which includes
the publication of this activity at a very early stage of development and the
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
55
consequent risk of competition for the identified area (Chown, 2008, Personal
Interview). These issues combined with obstacles described in the following sections,
including unanswered questions around grid-connection and turbine supply, explain
the long time span of up to four years, before a wind farm might start generating
electricity and revenue to cover start-up costs. During these preceding stages, money
has to be invested in the project without guarantee that it will be approved (Ramsden,
2008, Personal Interview).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
56
Chapter 5 –
Obstacles and barriers: Financing and business models
The above mentioned barriers around policies and legislation create a situation of
numerous uncertainties regarding the potential of wind projects in the country.
Uncertainties increase the risks of wind farms and consequently lessen the interest of
potential investors. For many potential wind farm developers, discussing financial
aspects of planned projects was a delicate matter. Confidentiality, especially in early
stages, where negotiations with investors were not completed at the time of the
interview, is a major concern. Only few projects had partnered with investors or
secured their financing at the time the interviews were conducted.
This chapter describes the main financial barriers identified. They can be divided into
different categories:
• Inexperience in developing IPPs and SPVs
• Inexperience of local wind industry as project developers and project sponsors
• Difficulty in financing development costs
• Lack of knowledge of local financiers / banks of wind industry
• Difficulty in securing long-term PPAs to provide reliable revenue stream to
service debt and reward equity
• Low cost of conventional electricity and need for feed-in tariff or price support
• Global credit crunch and scarcity and cost of capital
• Inexperience in accessing Carbon Financing
5.1 Inexperience in developing IPPs and SPVs
The parties interviewed agreed that there is no particular set of characteristics under
which a wind energy project will be commercially feasible. The structure and
combination of various conditions and characteristics as well as the overall risk profile
will determine a project’s final viability. Some of the individual developers admitted
their lack of experience with set ups of wind projects. For confidentiality reasons, a
number of developers were not prepared to share their detailed business plans. Only
rough overviews were discussed. The components mentioned to be included in a
business plan firstly include the main project components, like site, wind data,
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
57
licenses and permits, PPA, financing, construction, operation, and maintenance
plans. Secondly, a detailed financial model needs to be developed. (See for example
the model offered by the United Nations Environment Programme and Global
Environment Facility available online at http://www.retscreen.ne. Their free of charge
software helps to facilitate a wind project’s evaluation process. A financial analysis
worksheet allows the project decision-maker to consider various financial parameters
according to their individual parameters and financial performance indicators like
capital cost, debt/equity ratio or IRR, and return on equity.)
Thirdly, relevant feasibility factors need to be addressed and evaluated including
Environmental Impact Assessments, grid connection, and legal issues.
5.1.1 Ownership - IPP
The White Paper argues for 30% of South Africa’s power generated to be produced
by Independent Power Producers, which can be seen as a step towards liberalization
of the energy market. Renewable energy might benefit from an IPP network. The set
up of an IPP is largely seen as the best solution for wind farms. However, in most
cases, detailed ownership arrangements are not yet fully decided on and some
developers seem to struggle in finding a solution. Partnerships or joint ventures with
established project developers and international players might be of advantage.
Decisions will largely depend on the contract details but the majority of developers
seemed to prefer these setups over partnerships with Eskom.
Developers need to bear in mind that IPPs are obliged to have a minimum of 25%
shareholding from black economic empowerment (BEE) groups to qualify for
government support and approval.
When evaluating the contributing elements to successful IPP investments with
developers and investors, most of the success criteria outlined by Gratwick and
Eberhard (2008) (as discussed in chapter 2, analytical framework) are not evident.
5.4.1.1 Favorable debt arrangements
Financing costs are a major part of a wind project’s operational costs. Wind
developers struggle to secure low interest rates, as their risk profiles are perceived as
relatively high. The insecurities around policies that will regulate future PPAs with
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
58
Eskom lead to insecurity around the project’s income stream. Developers are in
negotiations on debt financing with a variety of national banks, like ABSA, Investec,
RMB, and Standard Bank. Local capital has the advantage to mitigate foreign-
exchange risk.
5.4.1.2 Favorable equity partners
The long term low return type of investment of a wind farm combined with the low
level of public awareness limits the pool of possible equity investors. In addition,
there is little experience with the risks involved in wind projects. However, as soon as
the sector becomes more established, wind farms could become an ideal niche
investment opportunity for institutional investors such as insurance firms or pension
funds (NuPlanet, 2004). Examples of potential equity investors identified in the
research are the Industrial Development Corporation (IDC), Development Bank of
Southern Africa (DBSA), Central Energy Fund (CEF), and the Old Mutual Investment
Group.
In many projects the debt/equity ratios are not decided yet, but are estimated to be in
a range of 50/50 to 80/20.
5.4.1.3 Secure and adequate revenue streams
Secure and adequate revenue streams are not yet guaranteed as details about
metering, billing and collections by the utility are only formulated as guideline drafts
by NERSA. However they are neither final nor put into practice yet. Moreover, at this
point of time, the PPAs discussed are only temporary drafts, as potential policies
deciding over renewable tariffs will not be established before February 2009.
5.4.1.4 Credit enhancements and other risk management and mitigation measures
Credit enhancements and other risk management and mitigation measures were
generally not addressed by developers and investors. They see no urgent need for
such measures but rely on robust PPAs to establish and guarantee reliability of the
utility and the end consumer. However, if a contract is made with a small municipality
or individual company as the sole buyer, chances of defaulting increase and risk
management might be needed.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
59
5.1.2 Potential set up - Special Purpose Vehicles (SPV)
Developers or owners of a wind power project most likely hold a variety of real
property rights, equipment, permits and regulation approvals, as well as intellectual
property. It is of importance to create the optimal corporate structure. Not all of the
potential developers have processed their projects to that point, but the anticipated
ownership structures tend to be Special Purpose Vehicles (SPV). This structure
allows for any mixture of shareholding, local and international and seems to be the
most familiar for potential investors and debt providers. The limited recourse nature
of wind farms is generally reinforced by the structures of SPVs.
Figure 6 below illustrates a potential set up for the financing structure of a wind farm.
The project financing employs a mix of equity and debt, with the larger portion of
funds generated from debt institutions. Furthermore, carbon financing can form an
additional share of income for the project. Concessionary financing mechanisms, like
capital subsidy grants are apparently not easily available for wind farms but might be
of help to get a project off the ground. Financial incentives are currently being
investigated by the South African government (DME, 2008b). Regardless of the size
of incentives, any governmental support will send an important positive signal
regarding renewable energies in the country.
The DME lists state institutions that provide affordable financing for emerging energy
markets. For example the Renewable Energy Fund and Subsidy Office (REFSO)
offer a subsidy to help lower the gap between the purchasing price of power and its
usually higher generation costs. REFSO requires specific criteria from its potential
projects: the project needs to be less than R100 million, have a minimum of 1 MW
generation capacity, and the subsidy must not exceed more than 20% of the project
costs. The state’s development finance institutions, such as the Development Bank of
Southern Africa (DBSA), Industrial Development Corporation (IDC), National
Empowerment Fund, and Central Energy Fund (CEF) are recommended by the DME
to be approached for grant funds and soft loans. In terms of foreign funding, the DME
mostly mentions European donors such as the Department of Foreign and
International Development (DFID), the Danish International Development Agency
(DANIDA), and the Norwegian Agency for Development (NORAD) (DME, 2008b).
The wind farm’s security lies in its assets and income stream and will most likely be
limited recourse or project financed. Therefore, favorable and robust PPAs with the
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
60
buyer are important to secure the project’s revenue stream. In the South African
setting the buyer will either be Eskom, a municipality, or a bigger industrial company.
Figure 6: Financial Model of a Special Purpose Vehicle
International comparison and calculations of local developers suggest capital costs in
the order of €1.3-1.8 million per MW installed. These prices include the components:
hardware, like generators, masts, blades, etc. which certainly are one of the biggest
shares, as well as design and construction consisting of civil works like foundations
and roads, logistics with transport, cranes, and erection, grid connection, and fees.
As for the operation and maintenance costs fixed cost arrangements would be
preferable in terms of control.
To lower the risks for the SPV, any penalties regarding deficits in the amount of
electricity generated are attempted to be passed on to the entities design and
construction or operation and maintenance.
Development costs are not included in figure 7 as they occur before the project gets
to the point where it can secure external financing. As mentioned in detail in chapter
Design & Construction
Buyer Eskom, Municipality, Industry
preferrably fixed cost arrangements
Debt ABSA Investec RMB Standard Bank
CDM
SPE
PPA
Penalties for generating
deficits
Income stream
Concessionary financing / Financial
incentives
Capital Cost
Buyer Eskom, Municipality, Industry
TRECs
EquityDBSA IDC CEF Old Mutual
Operations & Maintenance
Development & Construction
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
61
5.3 below, development costs are often an initial hurdle especially for smaller
projects.
5.2 Inexperience of local wind industry as project developers and project sponsors
In South Africa, there is neither an established wind energy market nor wind industry
yet. It is seen as crucial for the country to develop such a playing field rapidly to
counteract various initial hurdles.
Local project developers and project sponsors lack experience and expertise.
Developers suggested that government and the South African Wind Energy
Programme could offer support measures for interested developers through
workshops by international developers providing information on wind project
development cycles, strategies and techniques, or having consultants in place who
can be of assistance with implementation strategies and business plans (SAWEA,
2008).
As discussed in detail in the section about policies, incentives are needed to increase
confidence in the sector and to attract national and international developers,
investors, and turbine suppliers (Kast, 2008, Personal Interview). Especially
international parties would contribute expertise to the industry. Worldwide markets
are very promising for wind energy as countries with strong legislative support for RE
and established RE markets have lower risk profiles. At present, there is no
enticement for potential international players to choose South Africa (White, 2008,
Personal Interview). But even local investors, like local banks are still rather hesitant
to offer finance for wind farms, as they have no experience in the wind sector.
Moreover, for turbine suppliers a market is only worthwhile when sufficient numbers
of projects guarantee adequate demand for turbines. Operation and maintenance
contracting and local storage of spare parts is only feasible in a reasonably sized
market (White, 2008, Personal Interview).
Local production of equipment components would change the situation dramatically
and would involve various benefits for South Africa, including job creation in different
sectors and diversification of the manufacturing industry.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
62
5.3 Difficulty in financing development costs
Banks do not seem to be prepared to take the initial risks included in developing a
wind farm. Developers need seed money for beginning stages like wind
measurements and feasibility studies. As described in the section “administration and
time issues”, the costs up to the point of bankability are substantial. Investors for
example require on site wind data of at least 12 months at the appropriate height to
gain certainty concerning resource conditions. Especially inexperienced and smaller
entrepreneurs see the biggest hurdle in finding the initial pre-feasibility and feasibility
finance (SAWEA, 2008).
5.4 Lack of knowledge of local financiers/banks of wind industry
Investors were found to be hesitant to invest in wind energy projects in South Africa.
The reason is seen in the lack of an established wind industry in South Africa and the
consequent lack of successful wind farm precedents. As discussed in chapter 3, the
two demonstration wind farms do not provide experience or lessons in financing a
commercial project.
Local financiers and local banks are not experienced in wind projects and lack
knowledge about the industry. They are slow in evaluating wind energy applications
and usually reject them for their high perceived risks (Chacko, 2008, Personal
Interview).
To be considered by investors, developers need to have high credentials,
experience, and a track record in the wind industry, which is only given if they partner
with strong international players (Callcott-Stevens, 2008).
Some investors mentioned their preference for bigger projects, as the share of
development costs and capital investment becomes smaller with increased size of
the wind farm. Generally, investors aim at highest returns possible and accept only
premium wind developments with a strong portfolio of wind projects. Preferably, the
projects would have associated technologies included in their group, like turbine
blades or gear box manufacture to diversify revenues and avoid sole dependence on
electricity production from wind, an intermittent source (Clarke, 2008, Personal
Interview).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
63
5.5 Difficulty in securing long-term PPAs to provide reliable revenue stream to service debt and reward equity
The Power Purchase Agreement is the essential element of the credit picture in RE
projects’ financing as it is the main source of revenues. The difficulty in obtaining a
satisfactory PPA is as huge concern to the majority of wind energy developers
(SAWEA, 2008). Eskom is designated as the single buyer of renewable energy and
has so far not offered acceptable PPAs for wind energy (Eskom, 2008). The only
purchase agreement currently available for renewable energies is a Medium Term
Power Purchase Programme (MTPPP). The MTPPP aims to support government’s
directive to generate 30% of new generation capacity by the private sector to support
Eskom’s short to medium term power supply. The MTPPP is generally perceived as
neither feasible nor financeable for wind projects with a contract length of 10 years
and maximum rates of 105 c/kWH for the first five years, which then gradually taper
off to 35 c/kWH. Under these conditions developers struggle to raise capital and
especially for debt financing, the time span of 10 years is too short. Eskom admits
that the MTPPP does not cater well for smaller long-lived RE project like wind farms
and refers to NERSA’s intentions of implementing a renewable policy in the near
future which then might offer a solution with regards to duration of contracts and
ability to secure financing (Eskom, 2008).
For individual buyers, electricity generated through wind could be an additional
source next to Eskom’s conventional base line provision, as availability of wind and
consequently of the amount of wind generated electricity is not constant. An
advantage concerning individual buyers could be created when renewable energy is
being generated in their vicinity so that wheeling distances are short and availability
and strength of the national grid is less relevant.
The most important criteria for all possible buyers are credibility and a high credit
rating to keep counterpart risk low (Jenman, 2008, Personal Interview). However,
even Eskom’s credit ratings are being down rated, keeping its severely strained
finances and huge future investment requirements in mind, as mentioned by
Eberhard (2008).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
64
5.6 Low cost of conventional electricity & need for feed-in tariff or price support
South Africa’s history and the responsibility to supply electricity for everyone at
affordable prices, also for the poorest classes in society, lead to an economic
challenge for renewable energy in the country. Historically, prices for electricity have
been low in South Africa with annual increase rates below inflation rates for longer
than a decade. It is especially the large component of abundant and easily available
coal that enabled these extremely low electricity prices with coal prices of only about
a tenth of the world average (Eberhard, 2008). Any investments in the energy sector
will have to compete with average Eskom prices. Consequently, renewable energies
struggle to enter the South African energy market and will initially depend on
incentives and subsidies. Even large efficient wind farm projects (>100MW) are not
expected to be able to bring generation prices below Eskom’s average electricity
prices (Jenman, 2008, Personal Interview).
However, electricity tariffs are increasingly rising with an increase of 27% in 2008 and
planned 20% per annum for the next 3 years (Eberhard, 2008), and eventually these
higher prices for electricity might become a business driver.
Wind farms will most likely be limited recourse or project financed, as the project’s
security lies in its assets and income stream. Consequently, supportive policies need
to guarantee favorable PPAs as they secure the project’s revenue stream. With
Eskom’s only offer so far, the MTPPP, wind projects are not feasible. NERSA is still
in the planning phase of support policies for RE and as long as they are not
established yet, there will be uncertainty and increased risk. Information incoherency
and contradicting signals from different government departments are currently
causing confusion and insecurity about the nature and implementation time of future
regulations.
These resulting uncertainties are a huge concern to investors. To lower their risks,
they are likely to charge high risk premiums and require long-term contracts with a
buyer with guaranteed prices.
To circumnavigate these policy and regulation issues completely, certain investors
currently are considering financing the project development cycle up to the point of
financial close and then selling the finalized mature project, provided they would find
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
65
a project fulfilling certain prerequisites. Among these requirements are a prime site
with promising wind data and a developer with a strong track record.
Another option to improve the risk profile would be to exclusively invest in projects
with private to private PPAs, where electricity is directly produced on the private
buyer’s property. Here any involvement of Eskom and the national grid is avoided
(Clarke, 2008, Personal Interview).
5. 7 Global credit crunch and scarcity and cost of capital
The global credit crunch has worldwide consequences, and also influences South
Africa with a possible decline of short-term foreign investment inflows. Interest rates
are high in South Africa. The global situation might have direct consequences for the
wind projects in South Africa, including a potential rise in turbine prices. South African
wind developers will have to offer attractive returns to foreigners so that they consider
investing their capital into local projects (Chacko, 2008, Personal Interview).
As the market will be tighter on debt financing than before, PPAs will need to be even
sounder to receive financing.
The international wind turbine industry struggles to keep up with the booming global
demand for wind power, which surged to nearly 20 GW in annual installations during
2007, and is on track to more than double within a decade led by rapid growth in the
US and China (GWEC, 2008). Global demand for wind turbines is currently
exceeding supply and waiting times for turbines on the world market range from 2 to
4 years. Especially for small individual wind energy developers, scarcity of turbines
can become a problem. To avoid delays, orders have to be made way in advance
usually requiring deposits at that time. Bigger companies with a track record of
worldwide wind operations apparently have easier access to turbines and experience
shorter waiting times. Similar to investors, turbine suppliers prefer bigger and
experienced projects for various reasons including project security, operations and
maintenance, etc (Jenman, 2008, Personal Interview).
The turbines contribute the biggest portion of the capital needed for a wind farm,
exposing South African projects to a substantial amount of risk due to danger of
exchange rate fluctuations and weakening local currency. At the moment, no wind
energy equipment is locally produced in South Africa. As described in chapter 3,
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
66
there is one company in the Western Cape which is in the planning phase of
constructing 2 MW turbines.
5. 8 Inexperience in accessing Carbon Financing
The Clean Development Mechanism (CDM) was established under article 12 of the
Kyoto Protocol. It is an important potential instrument to promote foreign investment
in GHG emission reduction options, like wind projects, while it is at the same time
addressing the issue of sustainable development. CDM can be an additional source
of revenue generation for South African wind projects.
To be accredited as a CDM project in South Africa, the project has to apply with the
Designated National Authority (DNA) which is located within the Department of
Minerals and Energy. Then, if approved, it can be registered internationally.
Currently, South Africa has 27 CDM projects in the United Nations Environment
Programme CDM ‘Pipeline’, 13 of them are fully registered and 14 projects are in the
approval phase (Fenhann et al, 2008). None of these are wind energy projects,
whereas worldwide there are 179 wind projects registered in the programme.
The interviews revealed that the potential developers are aware of CDM as an
additional source for funding, but were inexperienced in how to get access. Their
degrees of knowledge and opinions about long-term reliability of the CDM process
differed substantially, however. Some developers were convinced, that only a small
share of the project’s revenue should rely on carbon financing, others had the CDM
mechanism integrated as a substantial part of their revenue stream covering up to
10-20% of their project (SAWEA, 2008).
Certain financial institutes specialize in carbon financing. The World Bank Carbon
Finance Unit for example accepts projects that might be marginal in terms of their
internal rate of return (IRR). It offers up to 25% of the Emissions Reduction Purchase
Agreement (ERPA) value upfront and undiscounted, as well as a secured carbon
payment stream beyond 2012, when changes in the Kyoto Protocol might be made
(World Bank Carbon Finance Unit, 2008).
‘Additionality’ applies for those projects that would not have been feasible without the
additional CDM revenue, as they would not have surpassed the investment
threshold. Projects exceeding the IRR hurdle rates even without CDM cash flows are
commercially attractive without CDM and therefore, by definition, are not additional
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
67
unless other non-financial barriers prevent them from their commercial
implementation. In these cases, where CDM revenues enable an otherwise not
feasible project, CDM can be seen as a real driver of the RE project (Fenhann et al,
2008). Figure 7 below demonstrates the returns of such additional projects.
Figure 7: Returns with and without CDM (Fenhann et al, 2008)
Hurdle rate
Gap between project return and hurdle rate
Project return without CDM
revenue
Project return with CDM revenue
CDM Cash flow
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
68
Chapter 6 – Policy recommendations Obstacles and barriers for wind energy developments in South Africa have proven to
be manifold and currently they still hinder the establishment of a wind industry of
scale in the country. However, regardless from which aspect the barriers are
analyzed, the same conclusion is reached: government’s renewable energy
objectives and its related policies are the prerequisites for success of renewable
projects. With sound regulations supporting wind energy, most of the other hurdles
might be overcome: Tariffs for PPAs would be fixed and guaranteed and roles and
rules for developers and Eskom would be clearly defined. Consequently, projects
would bear less risk and would be more favorable for financiers, and an industry of
scale could develop.
6.1 Need for policies to enable renewable (wind) energy
Of most urgent importance are the environmental reasons, for which renewable
energy sources need to be established. Banks and Schäffler’s (2005) analysis of the
“potential contribution of renewable energy in South Africa” and corresponding
environmental consequences depending on the volume of renewable sources used,
is described in chapter 3. It gives a comprehensive picture of the volume of
renewable energies that need to be established in South Africa in the near future.
The authors emphasize, that ongoing failure to support renewable energy
technologies will endanger both the environment and economic stability.
Similarly, the ”Long-term Mitigation Scenarios” developed by the South African
Department of Environmental Affairs and Tourism illustrate shocking data that South
Africa’s current strategies for energy efficiency and RE contribution, will not lower
emissions significantly in the long-term (Energy Research Centre, 2007). The
Intergovernmental Panel on Climate Change (IPCC) explains the disastrous
consequences of such emission levels especially for the African region with its low
adaptive capacity and high projected climate change impacts (IPCC, 2007).
The quoted scientific predictions as well as longer-term vision require a stronger
emphasis on RE from the South African government. With the development of a
renewable industry in South Africa, the population will not only benefit from a
healthier environment, but also from local capacity development, job creations, and
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
69
social upliftment. Considering the currently escalating electricity prices, renewable
energies might even become the most cost-effective energy options in the future
(Banks and Schäffler, 2005). Consequently, South Africa is in urgent need of policies
that will enable the establishment of a reasonable scale renewable industry.
International experiences show that enabling core elements of the legislation include
the obligation of grid operators to give priority to electricity from renewable sources,
and to pay for it according to fixed tariffs (Federal Ministry for the Environment,
2007). Consequently, feed-in tariffs would be the simplest and most effective
instrument to promote renewable electricity in South Africa, as further explained in
the following chapter.
6.2 Feed-in tariffs for South Africa South Africa is a developing country, and the country’s apartheid history and its
rather short experiences as a democracy might add additional challenges for new
developments in the country. Nevertheless, South Africa would benefit from
investigating the experiences other countries have made with feed-in tariffs and
broader legislation like the German Renewable Energy Sources Act (EEG),
introduced in chapter 2.2.7.
The renewable energy policy for South Africa would have to be tailored to the specific
situation in the country and policy makers will need to carefully choose the
appropriate terms, prices, and conditions of the feed-in tariff model adjusted to the
South African situation to avoid potential disadvantages. Having the elements of the
EEG in mind, a South African feed-in tariff model would have to include a variety of
adapted details:
• Tariffs should be applicable for all potential developers, regardless of their
project size, to create the opportunity for a critical mass of renewable energy
investment and for the establishment of a self sustaining market.
• Long-term certainty for involved parties should be established through stable
policies and long-term contracts with guaranteed prices for at least 20 years.
Tariffs should be high enough to recover costs and for achieving a reasonable
rate of return. Tariff levels should be technology-specific and rather based on
electricity generation costs than on avoided external costs, so that various
factors can be taken into account, such as investment for the plant, expenses
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
70
for licensing procedures, operation and maintenance costs, inflation, interest
payments for the invested capital, and profit margins for investors (Klein et al
2006)/(Mendonça, 2007). In addition, the method of establishing prices needs
to be transparent and avoid high administrative complexity and uncertainties
for investors due to difficulties to predict tariff levels.
• Grid access must be legally guaranteed and additionally required grid
connection must be established on a priority base.
• Eskom has to be obliged to purchase all renewable power generated.
• Administrative and application processes, such as processing of (pre-)
feasibility studies, basic environmental assessments, and Environmental
Impact Assessments need to be streamlined.
• There needs to be a cost-recovery mechanism for Eskom, for example
subsidies for additional expenses, such as up-grading of the grid or wheeling
of electricity.
• Even though the premium is added to the electricity price of end consumers,
public acceptance needs to be reached through affordable electricity prices
and through awareness creation for the importance of renewable energies.
• Dynamic mechanisms need to reflect the market, economic and political
developments and establish a level playing field with conventional electricity
generation. Tariff levels need to regularly be revised and adjusted to
guarantee reaching stated goals of the energy policy (Klein et al, 2006).
Feed-in tariffs would be the simplest and most effective policy to increase
investments in wind energy in South Africa. The system has proven successful in
promoting renewable energies. Compared to other policies, it is the fastest, most
technologically-diverse system with the lowest transaction costs (Toke, 2007). Feed-
in tariffs stimulate steady growth of small-and medium-scale producers in South
Africa and ease access to financing and consequently the entry into the industry
(Mendonça, 2007). Through the encouraged increase in renewable capacity, feed-in
tariffs drive down costs through technology advancement and an economy of scale in
the country. With the development of a new industry in South Africa, related social,
economic, environmental and security benefits can be expected (Sawin, 2004).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
71
Other supportive models, such as the quota systems or tendering processes have
contributed very little to increasing capacity from renewable energy (Federal Ministry
for the Environment, 2007). In South Africa, they should at the most be established in
combination or supplemental to feed-in tariffs. They can for example be added after
the wind industry had been kick-started to then expose developers to price
competition and ensure that wind power is being delivered at the lowest possible cost
(Menantenau et al, 2003).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
72
Chapter 7 – Conclusion The focus of this research is to understand why there are so few wind energy
developments in South Africa. Primary research identifies obstacles and barriers for
potential wind energy projects in the country. These issues are analyzed on a
theoretical level as well as practically in dialogue with potential wind energy
developers, investors, government officials, and experts in the industry.
The preceding chapters present a consolidated report on the factors that are
impacting potential developers and give answers to the two key research questions:
• To what extent are existing policies and regulations a barrier to wind energy
developments in South Africa and what policies and regulations need to be put
in place by government to support wind energy developments in the country?
• To what extent is the availability of finance a barrier to wind energy
development in South Africa and how best can these developments be
financed?
The picture gained through primary research emphasizes the lack of government
commitment and a supportive legislation. The South African government gives
contradicting and confusing signals regarding the establishment of renewable energy
policies. The described structure of the electricity sector with Eskom incorporating
three divisions (generator, transmitter, and buyer) leads to further problems as long
as the utility does not show commitment to promote RE participation in the market.
Part of Eskom’s responsibilities would for example be to give priority to grid
extensions to wind farms. Further administrative issues like the Environmental Impact
Assessments need to be streamlined to save time and costs in the developing phase
of projects.
The lack of supportive policies and legislation is closely linked to problems found in
the field of financing and business models. Wind projects typically rely on non-
recourse project finance and therefore need guaranteed revenue streams through
sound PPAs to service debt and reward equity. As long as there are no supportive
policies like feed-in tariffs in place, potential developers struggle to secure favorable
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
73
long-term PPAs. The low cost of conventional electricity in South Africa increases the
need for a feed-in tariff or price support mechanism even more.
Further analysis of financial barriers shows that the inexperience of the local wind
industry as project developers and project sponsors leads to a number of difficulties,
like developing a project structure, or accessing carbon financing. The typical set ups
of IPPs and SPVs are described in the report. The industry around wind and other
renewable energies does not exist in South Africa yet, and consequently a lack of
knowledge is found amongst local financiers and banks who are hesitant to invest.
Especially investment in the development phases of wind farms are perceived as too
risky. The global credit crunch and scarcity of wind turbines intensifies financial
difficulties around developing wind energy.
A literature review on different supportive policy mechanisms and an international
comparison of renewable energy regulations leads to the recommendation of feed-in
tariffs as the most effective support policy for renewable energies in South Africa.
The report explains a number of specific implementation details adequate for the
South African context and describes the benefits of the system of feed-in tariffs
supporting sustainable development of wind energy supply in the interest of lowering
GHG emissions and protecting the environment. Feed-in tariffs are identified as the
most adequate mechanism to increase the percentage contribution of wind energy
sources to power supply in South Africa.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
74
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Appendix 1 – List of individuals interviewed
Person Company Contact details Date of Interview
Hermann Oelsner
DARLIPP +27 22 492 3095 [email protected]
29/07/2008 and 10/11/2008
Noma Quase and Daniel Modise
DME +27 012 317 8717 28/08/2008, 18/09/2008, 03/12/2008
Dave George
+27 12 460 8233 [email protected]
07/10/2008 (via Email)
Christopher Clarke
Evolution One Fund
021 702 1290 [email protected]
10/10/2008
George Ferreira
Nelson Mandela Bay Municipality
+27 41 392 4282 [email protected]
13/10/2008
James Lech Phieco, Motorwind turbines
+27 83 335 3958 [email protected] www.phieco.net
13/10/2008
Douglas Jenman and Luke Callcott-Stevens
Macquarie +27 21 670 1240 [email protected] [email protected]
14/10/2008
Nick Pruim
+27 79 895 4093 [email protected]
15/10/2008
JamesWhite
Vestas +27 79 1828 808 [email protected]
15/10/2008
South African Wind Energy Association
SAWEA Workshop: Development of a Business Plan for SAWEA V&A Waterfront, Cape Town
17/10/2008
Andre Otto SAWEA +27 11 317 8428 17/10/2008 21/11/2008
Francis Jackson
Windlab
+27 71 689 5442 [email protected] www.windlabsystems.com
20/10/2008 and 23/10/2008
Riaan Smit Eskom +27 21 980 3452 [email protected]
21/10/2008
Brian Jones City of Cape Town
+27 21 446 2015 [email protected]
22/10/2008
David Nicol
CEF Sustainability
+27 21 441 8500 [email protected]
23/10/2008
Tommie Potgieter
Investec
+27 11 286 7258 +27 83 678 2016 [email protected]
23/10/2008
Davin Genesis +27 21 7835814 24/10/2008
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
83
Chown +27 83 4603898 www.genesis-eco.com
Leila Mahomed
Western Cape Clean Energy Governance Programme
[email protected] 24/10/2008
Dr. Andries Van der Linde
Consultant +27 11 902 6722 [email protected]
28/10/2008 (telephonically)
Martin Gasela
EX4 Energy +27 11 680 3593 +27 82 700 7818 [email protected]
28/10/2008 (telephonically)
Howard Ramsden
TerraPower +27 73 672 2502 [email protected]
28/10/2008
Julia Kupka ABSA [email protected] 30/10/2008 Dr. Ruth Rabinowitz
e-REACT [email protected] 30/10/2008 (telephonically)
Jacob Chako
Old Mutual Investment Group
+27 21 509 4304 [email protected]
03/11/2008
Feed-in tariff workshop
V&A Waterfront, Cape Town 10/11/2008
Pieter Francois Roux
Earthpowersa +27 76 435 4241 [email protected]
11/11/2008
Dr. Michael Kast
Isivunguvungu +27 82 255 5336 [email protected]
20/11/2008
Nicolas Rolland
Umsehle [email protected] 24/11/2008 (telephonically)
Davin Berelowitz
Conco +27 11 805 4281 [email protected]
25/11/2008 (telephonically)
Table 3: List of individuals interviewed
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84
Appendix 2 – List of planned wind projects in SA
Developer Company Contact details Size Eskom Klipheuwel Wind Energy
Demonstration Facility 3.2 MW (operational since 2002/03)
Eskom 100 MW Hermann Oelsner
DARLIPP +27 22 492 3095 [email protected]
5.2 MW, (operational since March 2008)
Hermann Oelsner
100 MW at Langefontain
Douglas Jenman and Luke Callcott-Stevens
Macquarie +27 21 670 1240 [email protected] [email protected]
100 MW at Hopefield, Western Cape, amongst other wind projects
Francis Jackson
Windlab Partnership with Investec
+27 71 689 5442 [email protected] www.windlabsystems.com
various wind projects; biggest one 500 MW
Tommie Potgieter
Investec Partnership with Windlab
+27 11 286 7258 +27 83 678 2016 [email protected]
See above
Davin Chown Genesis +27 21 7835814 +27 83 4603898 www.genesis-eco.com
15 MW at Jeffrey’s Bay and 80 MW St Helena Bay
Nick Pruim and Kim Geldenhuys
+27 79 895 4093 [email protected]
60-80 MW at Lamberts Bay and 50 MW development also at West Coast
David Nicol and Mark Tanton
CEF Sustainability
+27 21 441 8500 [email protected]
20 MW in PE with municipality
Howard Ramsden
TerraPower +27 73 672 2502 [email protected]
370 MW of various projects altogether
George Ferreira Nelson Mandela Bay Municipality
+27 41 392 4282 [email protected]
7.4 MW and 20 MW
Martin Gasela EX4 Energy +27 11 680 3593 +27 82 700 7818 [email protected]
1000 MW altogether; still in planning stage
Carlo Van Wyk Beaufort West Municipality
+27 44 691 2074 [email protected]
4.5+30+50 MW
James Lech Phieco, Motorwind turbines
+27 83 335 3958 [email protected] www.phieco.net
100 MW (motorwind turbines)
Davin Berelowitz
Conco +27 11 805 4281 100 MW (+200 MW)
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
85
Confidential developer
330 MW
Mike Msizi Watt Energy +27 41 379 4415 +27 71 432 9360 [email protected]
No information given
Pieter Francois Roux
Earthpowersa No information given
Jon Kincaid Smith
Westcoastwind No information given
Gerard Latouf No information given
Mike Msizi Watt Energy +27 41 379 4415 +27 71 432 9360 [email protected]
No information given
TOTAL 3,045.3 MW Table 4: List of planned wind projects in SA
Appendix 3 - Facts about Wind Energy
History
In fact, wind energy can be seen as another form of solar energy, as the sun creates
wind by unevenly heating up the planet´s atmosphere. Surface irregularities, rotation
of the earth, vegetation and water surfaces alter wind flow patterns. It has been used
for hundreds of years, like for sailing, and windmills have been used to pump water or
grind grain. Today, the windmill's modern equivalent, a wind turbine, can use the
wind's kinetic energy to generate electricity and mechanical power.
How wind turbines work
Almost all wind turbines producing electricity for the national grid consist of rotor
blades which rotate around a horizontally orientated hub. Usually they consist of 3
blades, while 2 and single blade turbines are also in use. The blades consist of
fibreglass-reinforced polyester or wood-epoxy. The hub is connected to a gearbox
and generator, which are located inside the nacelle. The nacelle houses the electrical
components and is mounted at the top of the tower. This type of turbine is referred to
as a 'horizontal axis' machine. Vertical axis turbines are usually not in use in large-
scale wind farms.
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
86
“The turbine can be divided into three components:
• the rotor component, which is approximately 20% of the wind turbine cost,
includes the blades for converting wind energy to low speed rotational energy.
• the generator component, which is approximately 34% of the wind turbine
cost, includes the electrical generator, the control electronics, and most likely
• a gearbox component for converting the low speed incoming rotation to high
speed rotation suitable for generating electricity.
The structural support component, which is approximately 15% of the wind turbine
cost, includes the tower and rotor pointing mechanism” (Fingersh et al, 2006). In big
wind turbines with blades of great length, transport and installation cost sometimes
make up to 20%.
Inside a wind turbine
The most important components of a wind turbine are illustrated in figure 8 below and
will be explained in table 6.
Figure 8: Wind turbine (Alliant Energy, 2008)
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87
Component Explanation Anemometer Measures the wind speed and transmits wind speed data to the controller. Blades Most turbines have either two or three blades. Wind blowing over the
blades causes the blades to "lift" and rotate. Brake A disc brake, which can be applied mechanically, electrically, or
hydraulically to stop the rotor in emergencies. Controller The controller starts up the machine at wind speeds of about 8 to 16 miles
per hour (mph) and shuts off the machine at about 55 mph. Turbines do not operate at wind speeds above about 55 mph as they might be damaged by the high winds.
Gear Box Gears connect the low-speed shaft to the high-speed shaft and increase the rotational speeds from about 30 to 60 rotations per minute (rpm) to about 1000 to 1800 rpm, the rotational speed required by most generators to produce electricity. The gear box is a costly (and heavy) part of the wind turbine and engineers are exploring "direct-drive" generators that operate at lower rotational speeds and don't need gear boxes.
Generator Usually an off-the-shelf induction generator that produces 60-cycle AC electricity.
High-speed shaft Drives the generator. Low-speed shaft The rotor turns the low-speed shaft at about 30 to 60 rotations per minute. Nacelle The nacelle sits atop the tower and contains the gear box, low- and high-
speed shafts, generator, controller, and brake. Some nacelles are large enough for a helicopter to land on.
Pitch Blades are turned, or pitched, out of the wind to control the rotor speed and keep the rotor from turning in winds that are too high or too low to produce electricity.
Rotor The blades and the hub together are called the rotor Tower Towers are made from tubular steel, concrete, or steel lattice. Because
wind speed increases with height, taller towers enable turbines to capture more energy and generate more electricity.
Wind direction This is an "upwind" turbine, so-called because it operates facing into the wind. Other turbines are designed to run "downwind," facing away from the wind.
Wind vane Measures wind direction and communicates with the yaw drive to orient the turbine properly with respect to the wind
Yaw drive Upwind turbines face into the wind; the yaw drive is used to keep the rotor facing into the wind as the wind direction changes. Downwind turbines don't require a yaw drive, the wind blows the rotor downwind.
Yaw motor Powers the yaw drive Table 5 : Components of a wind turbine (Sunflower, 2008)
Rotor blades
Rotor diameters range up to 130 meters, operating in towers at heights between 30 –
130 meters where they take advantage of the faster and less turbulent winds in these
heights. “A blade acts much like an airplane wing. When the wind is blowing, a
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
88
pocket of low-pressure air forms on the downwind side of the blade. The low-
pressure air pocket then pulls the blade towards it, causing the rotor to turn. This is
called lift. The force of the lift is actually much stronger than the wind's force against
the front side of the blade, which is called drag. The combination of lift and drag
causes the rotor to spin like a propeller, and the turning shaft spins a generator to
make electricity” (GE Energy, 2008).
Wind Power
“The amount of power transferred to a wind turbine is directly proportional to the area
swept out by the rotor, to the density of the air, and the cube of the wind speed.
The power P in the wind is given by:
,
Where P = power in watts, α = an efficiency factor determined by the design of the
turbine, ρ = mass density of air in kilograms per cubic meter, r = radius of the wind
turbine in meters, and v = velocity of the air in meters per second” (Iowa Energy
Centre, 2008).
The power is controlled automatically as wind speed varies and machines are
stopped at very high wind speeds to protect them from damage. All turbines are
equipped with shut-down features to avoid damage at high wind speeds.
The yaw mechanism turns the turbine into the wind. Sensors measure wind direction
and the tower head is turned to face into the wind.
Towers are mostly cylindrical and made of steel; generally they are painted light grey.
Towers range from 25 to 130 meters in height.
Commercial turbines range in capacity from a few hundred kilowatts to over 5
megawatts. Larger turbines are grouped together into wind farms, which provide bulk
power to the electrical grid. The crucial parameter is the diameter of the rotor blades -
the longer the blades, the larger the area 'swept' by the rotor and the greater the
energy output. At present the average size of new machines being installed is now
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
89
about 2 MW. The trend is towards moving to larger machines as they can produce
electricity at a lower price.
“There are many different turbine designs, with plenty of scope for innovation and
technological development. The dominant wind turbine design is the up-wind, three
bladed, stall controlled, constant speed machine. The next most common design is
similar, but is pitch controlled. Gearless and variable speed machines follow, again
with three blades. A smaller number of turbines have 2 blades, or use other
concepts, such as a vertical axis” (BWEA, 2008).
Most turbines are upwind of the tower - they face into the wind with the nacelle and
tower behind. However, there are also downwind designs, where the wind passes the
tower before reaching the blades.
Stall and pitch control
“There are two main methods of controlling the power output from the rotor blades.
The angle of the rotor blades can be actively adjusted by the machine control system.
This is known as pitch control. This system has built-in braking, as the blades
become stationary when they are fully 'feathered'.
The other method is known as stall control. This is sometimes known as passive
control, since it is the inherent aerodynamic properties of the blade which determine
power output; there are no moving parts to adjust. The twist and thickness of the
rotor blade vary along its length in such a way that turbulence occurs behind the
blade whenever the wind speed becomes too high. This turbulence means that less
of the energy in the air is transferred, minimising power output at higher speeds. Stall
control machines also have brakes on the blade tips to bring the rotor to a standstill, if
the turbine needs to be stopped for any reason.
Most wind turbines start operating at a speed of 4-5 metres per second, reach
maximum power at about 15 m/s and will cut out at speeds of about 25 m/s to protect
the machine” (BWEA, 2008).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
90
Factors affecting performance
“Most important is the windiness of the site. The power available from the wind is a
function of the cube of the wind speed. Therefore a doubling of the wind speed gives
eight times the power output from the turbine. All other things being equal, a turbine
at a site with an average wind speed of 5 meters per second (m/s) will produce nearly
twice as much power as a turbine at a location where the wind averages 4 m/s.
Second is the availability of the equipment. This is the capability to operate when the
wind is available - an indication of the turbine's reliability. This is typically over 98%
for modern machines. Last is turbine arrangement. Turbines in wind farms must be
carefully arranged to gain the maximum energy from the wind - this means that they
should shelter each other as little as possible from the prevailing wind” (BWEA,
2008).
Records
“Matilda was a wind turbine located on Gotland, Sweden. It produced a total of 61.4
GWh in the 15 years it was active. That is more renewable energy than any other
single wind power turbine had ever produced to that date. It was demolished on June
6th, 2008.
The world's largest turbines are manufactured by the Northern German companies
Enercon and REpower. The Enercon E-126 delivers up to 6 MW, has an overall
height of 198 m (650 ft) and a diameter of 126 meters (413 ft). The Repower 5M
delivers up to 5 MW, has an overall height of 183 m (600 ft) and has a diameter of
126 m (413 ft)” (Wikipedia, 2008).
Wind Energy Developments in South Africa: A Delineation and Analysis of Barriers and Obstacles
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Appendix 4 – Additional obstacle: Lack of information
Information about wind in South Africa
Some developers and investors argue that easier access to more detailed wind data
in South Africa would be of advantage. It could not only demonstrate South Africa’s
possibilities in wind energy, but might even have the potential to boost wind industry
due to greater confidence in this renewable source.
Furthermore, interested national and international developers or investors would get
an overview of potentially feasible areas where investments into specific wind
measurements at appropriate heights might identify sites for further wind projects
(SAWEA, 2008).
Lack of public awareness
In a global comparison, South Africa’s awareness for environmental issues is still
rather minute. For the majority of South Africans, electricity is a basic need. The
country still lacks a broad local market for RE consisting of individual households as
well as local industry. Apart from very few exceptions, there seems to be neither
interest nor pressure from local or international partners, suppliers, or customers to
include green components like renewable energy for a premium price (MSSA, 2004).
The current and forecasted energy shortages in South Africa however, might create
effective drivers of renewable energy due to issues of energy security and rising
prices for conventional electricity.
Understanding of all RE benefits needs to be promoted including important factors
like job creation and economic growth for the local and national economy. In this
regard, local production of components would be more than favorable.
Awareness about RE is important on all levels, from high government officials and
decision makers to ordinary citizens who additionally might become interested in
small private renewable energy generators enabling them to be independent and
even to feed excess electricity into the grid, as it is common practice in various
countries (GWEC, 2008).
Promotion of wind energy should be teamed with basic education about wind farms
to get rid of misconceptions. Wrong interpretations in parts of the population are for
example that the inconsistency of wind in South Africa hinders energy generation
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from that source. Additionally, land owners need to be reaffirmed that turbines have
no potential negative effects on their animals (Oelsner, 2008).
There are also positive sides. Wind energy seems to create increasing interest in the
whole of Southern Africa, including neighboring countries like Namibia, Botswana,
and Kenya, and recently the number of potential developers is perceived to be
growing.
Moreover, South African Universities have started offering courses in RE and wind
energy, like the University of Stellenbosch with its postgraduate programme in
renewable and sustainable energy studies (University of Stellenbosch, 2006).