Responsive adjustment of feed-in tariffs to dynamic PV technology ...
PV - A Disruptive Technology - Sustainable Strategies · Creating a stable market with...
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Photovoltaics: A Disruptive Technology The European Experience
Ruggero Schleicher-Tappeser
sustainable strategies, Berlin
1st International Energy Cooperation Symposium
Seoul, December 9, 2011
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Urging problems lead to a rapid paradigm change
• Accelerating climate change • Depleting oil and gas resources • Increasing energy demand in emerging and
developing economies
►Rapid transformation of the energy system needed ►Governments create markets for new technologies ►New technologies change the energy markets
• PV is the most disruptive of the new technologies: Fastest growth steepest learning curve biggest potential but still small
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Converging political targets in Europe: 100% renewable electricity by 2050
• EU decision in 2009, compulsory: 20% renewable energy in Europe 2020 ca. 35% renewable electricity
• German RE Industry Association 2008: 47% renewable electricity in Germany by 2020
• German environmental minister Röttgen 2010: his aim: 100% renewable electricity in Germany 2050
• EREC (European RE Industry Association) 2010/11: 100% renewable energy in Europe 2050, 45% in 2030
• German Advisory Council on the Environment 2010: 100% renewable electricity in Germany possible and necessary by2050
• European Climate foundation / PriceWaterhouseCoopers 2010: 100% renewable electricity in Europe possible by 2050
• WWF 2011 worldwide scenarios: 100% renewable energy 2050
• EU Commission Energy scenarios 2011: ??? % renewable energy in Europe 2050
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Branchenprognose
employment
Industry forecast
Employment in renewable energies in Germany
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Investments in renewable energy installations in Germany 2010 Investments in the construction of renewable energy
installations in Germany 2010
2,500 Mill. EUR
1,550 Mill. EUR
1,150 Mill. EUR
950 Mill. EUR
850 Mill. EUR
70 Mill. EUR
19,500 Mill. EUR
0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 18,000 20,000
Photovoltaics
Wind energy
Biomass
(electricity)
Biomass
(heat)
Solar thermal
energy
Geothermal
energy *
Hydropower
[Mill. EUR]* Large plants and heat pumps; deviations in the totals are due to rounding;
Source: BMU-KI III 1 according to the Centre for Solar Energy and Hydrogen Research Baden-Wuerttemberg (ZSW); as at: July 2011; all figures provisional
Total: approx. 26.6 Bill. EUR
[email protected] © BMU 2010 6
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Germany has triggered the take-off of the world PV market
[email protected] Source: BMU, BSW 7
76 186 296 435 1105
2056 2899
4170
5979
9785
17193
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Total PV capacity installed in Germany
MW Milestones
1991: First Feed-in Law (FIT with low tariffs)
1991-1995: 1,000 roofs program (grants)
1999-2003: 100,000 roofs program (loans)
2000: Renewable Energy Sources Act (EEG) (FIT)
2004: Amendment of the EEG (FIT)
2006: Amendment of the EEG (lower and decreasing FIT)
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Success factors in Germany
• A reliable investment context with guaranteed feed-in tariffs for 20 years after installation
• Continuous adaptation of the FIT for new systems to market development steady growth
• A simple scheme: no other incentives, just FiT
• No complicated permitting procedures
Banks have learned that PV investments are low risk low capital costs
Industry and craftsmen have invested in production and training reliable quality, low system price
Hundreds of thousands of new private investors
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Creating a stable market with feed-in-tariffs • Earlier promising PV programmes pushed by the USA
(President Carter) in the early eighties, then by Japan in the nineties were less transparent and terminated to early
• The feed-in-tariff has become an international success story: 61 countries with FiT. They have strongest PV growth
• Pitfalls to be avoided: – Unsustainable high tariffs (Spain,
Czech Republic, UK) – Unbalanced market without small
players (Spain) – Slow FiT adaptation – Complicated, permitting
procedures (Greece, Portugal) – Retroactive changes (Czech Republic)
Market development in Spain
© BSW-solar
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PV is a Semiconductor technology: Direct transformation of sunlight into electricity
sunlight several layers of semiconductors variety of different technologies: • crystalline silicon c-Si (ingot-wafer)
• monocristalline < 24% efficiency • polycristalline < 20%
• thin-film technologies • amorphous Silicon a-Si, also comb. < 12% • CdTe Cadmium-Telluride < 16% • CIGS, different combinations < 20% • GaAs, Gallium-Arsenide < 24% • poly-junction < 41% • …
DC direct current inverter AC alternate current
_ +
~ • no moving parts • no maintenance • no fuel • high cost reduction
potential
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A scalable technology: mass production of standardised cells
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Rapidly decreasing Costs: The historical learning curve of PV
[email protected] 15 © EPIA
doubling of the volume cost reduction 22%
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Innovations in PV development: large variety guarantees further cost reductions
Carrying materials, module design Concentrators, tracker systems BIPV: integration in buildings, construction elements in appliances, in vehicles Free space, traffic areas, roofing
Cells
electrical integration
mechanical integration
Storage technologies (stationary, mobile, off-grid, grid)
Intelligent inverters System design Hybrid systems, mini-grids Grid concepts, grid steering Regulation, markets
Silicon, improvement c-Si cells Thin film:
Si, CIGS, CdS, …
Multi-junction, concentrator cells Organic cells Dye sensitised cells …
Higher efficiency Lower production costs New application fields INTEGRATION
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Rapidly decreasing German feed-in-tariffs: grid parity residential in 2012
51,8 49,21
46,75 43,1
28,74
40,6 37,96
35,49 31,94
21,11
0
10
20
30
40
50
60
2006 2007 2008 2009 2010 2011 2012
< 30 kW
> 100 kW< 1MW
groundmounted
grid parity
German feed-in tariff
average household tariff (3000 kWh/a) (incl. VAT)
commerce tariff (100 MWh/a) Munich (without VAT)
20 Rp
40 Rp
30 Rp
10 Rp
332 Won
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Power need when the sun does not shine: different potentials for own consumption
Private household in Germany clouless summer day, 4 persons,
PV installation 5 kWp
Efforts needed for > 30% of own consumption
Commerce working day 8-18h
BDEW Lastprofil G1
Good conditions for high share of own consumption
PV power production
consumption own consumption
[email protected] 18 © SMA
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• In the last four years the average PV system price declined by 50% (3Q07-3Q11, <100kWp, Germany)
corresponding to -16% p.a.
• Scenario assumptions – System price development: -10% p.a.
– Power from the grid: + 3% p.a.
– present FIT in Germany represent present PV power costs
In five years PV power from the roof could cost 40% less than power from the grid
Attractiveness for own power production: Germany - Scenario for the next five years
Evolution of the difference between grid tariffs and own PV power costs
© [email protected] 19
-
5
10
15
20
25
30
2011 2012 2013 2014 2015 2016
grid house
grid trade
PV house
PV trade
-50%
-40%
-30%
-20%
-10%
0%
10%
20%
household
trade
+ 3% p.a.
- 10% p.a.
€c/kWh
Difference
Convincing incentive for investing in load management.
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Image: Sharp
Image: Geosol
data: BNetzA 2010
From 2013: large shares of the German PV market interesting for own consumption
2%
8%
28%
25%
22%
15%
< 5 kW
5 – 10 kW
10 – 30 kW
30 – 100 kW
100 kW – 1 MW
> 1 MW
Installations january – september 2010
60% of new installations
< 100 kW
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The coming boom: captive power generation
Attractive investments even without incentives
Timeline in Germany:
• In two years: PV power for own consumption in commerce and services
• In three years: Supplementary investments for increasing the share of own consumption
PV growth independent from incentives
Boom in power management technologies
© [email protected] 21
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Grid parity in Europe 2016 (forecast in 2010)
commercial residential
2010
© Q-Cells, [email protected] 23
Korea
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TOWARDS A NEW CONTROL LOGIC OF THE ELECTRICITY SYSTEM
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Photovoltaics is a modular technology: competing on the retail side
25 © [email protected]
conventional power plant
~ 6 ¢
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Photovoltaics is a modular technology: competing on the retail side
26 © [email protected]
conventional power plant
~ 6 ¢
Wholesale strongly varying prices
industry
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Photovoltaics is a modular technology: competing on the retail side
27 © [email protected]
conventional power plant
~ 6 ¢
Wholesale strongly varying prices
industry
Retail constant prices
tariff steps
18-24 ¢
50% of power consumption: households, commerce,
services
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Photovoltaics is a modular technology: competing on the retail side
28 © [email protected]
conventional power plant
PV power plant
~ 6 ¢
Wholesale strongly varying prices
wind power plant
industry
Retail constant prices
tariff steps
18-24 ¢
50% of power consumption: households, commerce,
services
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Photovoltaics is a modular technology: competing on the retail side
29 © [email protected]
conventional power plant
PV power plant
~ 6 ¢
Wholesale strongly varying prices
wind power plant
industry
Retail constant prices
tariff steps
18-24 ¢
50% of power consumption: households, commerce,
services
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Photovoltaics is a modular technology: competing on the retail side
30 © [email protected]
conventional power plant
PV power plant
~ 6 ¢
Wholesale strongly varying prices
wind power plant
industry
Retail constant prices
tariff steps
18-24 ¢
50% of power consumption: households, commerce,
services
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Photovoltaics is a modular technology: competing on the retail side
31 © [email protected]
conventional power plant
PV power plant
~ 6 ¢
Wholesale strongly varying prices
wind power plant
industry
Retail constant prices
tariff steps
18-24 ¢
50% of power consumption: households, commerce,
services Limited number of large
investors millions of small investors
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Photovoltaics is a modular technology: competing on the retail side
32 © [email protected]
conventional power plant
PV power plant
~ 6 ¢
Wholesale strongly varying prices
wind power plant
industry
Retail constant prices
tariff steps
18-24 ¢
50% of power consumption: households, commerce,
services Limited number of large
investors millions of small investors
PRICE GAP: grid costs
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India: Photovoltaics in weak grids competing against diesel backup
33 © [email protected]
conventional power plant
PV power plant
Wholesale strongly varying prices
5 Rp
wind power plant
industry
Retail constant prices
tariff steps
Limited number of large
investors
millions of small investors
diesel backup
8 Rp
15 Rp
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base load
medium load
peak load
energy demand in the grid
time (h)
MW
.
energy demand in the grid
MW
.
fluctuating renewable production
excess for storage
compensation by rapidly reacting sources
The old base load concept: • cheap base load electricity from
large plants • expensive peak load from more
variable sources
The new paradigm: • Variable production from
renewables with zero marginal cost • Compensation with rapidly reacting
sources (hydro, gas turbines) • Storage becomes important • Load management becomes
important (smart grid) • No need for baseload plants
The main problem with high shares of wind and solar power: fluctuation
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Traditional Large power plants fossil and nuclear
• Production follows demand: base / middle / peak load
• Load management only with large consumers
• Central control
Supply 100% REN Integrated optimisation of the whole system
• Fluctuating production with wind and sun dominates
• Load management, storage
• Complexity requires optimisation on several levels
Captive power production Optimisation on the consumption level
• Optimisation subsystem • Partial buffering of fluctuations
at the local level • Facilitation of optimisation at
higher levels
Captive PV Power can support the change of the control logic of the electricity system
production
load storage
grid Contribution
Transformation Transformation
production
load storage
transport
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0 5 10 15 20 25 30 35 40 45 50
factory PV cells/modules
installation PV
factory wind turbines
installation wind park
coal power plant
nuclear power plant
years
construction
useful life
decommissioning
Unfamiliar to energy business: 4 to 10 times shorter innovation cycles More rapid build-up of capacities
More rapid decrease of costs
More rapid transformation of the electricity sector
Dramatic acceleration compared to traditional energy technologies
© [email protected] 36
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ECONOMIC IMPACTS
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PV brings important economic advantages for society • No fuel imports
• High value added at the regional level: employment, profits, taxes
• Several value-added steps with a broad variety of qualifications required
• Overall balance soon positive: start-up financing paid back rapidly
• High security of supply, avoidance of international conflicts
• No follow-up costs for future generations (e.g. climate damages, pollution, waste …)
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Economic balance in Germany: despite expensive start phase positive before 2022 • Roland Berger / PROGNOS 2010 with very prudent assumptions:
• ATKearney 2010: positive balance already in 2012
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Citizens participation: Distribution of ownership
Ownership of installations for renewable electricity production in Germany (2010)
Private persons 42%
Project developers 15%
Utilities 13%
financial funds, banks 11%
industry, trade 7%
Regional IPPs 2% Farmers 9%
Other 1%
Total 43,000 MWel
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international
The value chain: smaller installations – more local content ↓ Research institutes
↓ Manufacturers of production plants
↓ Banks and financing companies
↓ Manufacturers – silicon
– wafers, cells
– modules
↓ Traders
↓ System integrators, EPC contractors
↓ craftsmen in the construction business
operating company
© [email protected] 41
international
international
can be local
international
can be local
can be local
can be local
local
can be local
smaller installations – more opportunities for local added value
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PROJECT EXAMPLES
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Rooftop plant on historical protected house in Italy 2011
• Modena / Italy. 6 kW. 2011
• Built by CoEnergia
• modules: Q-Cells thin-film
© Q-Cells
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Plus-Energy-Houses in Freiburg / Germany
© Solarsiedlungs-GmbH
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Agricultural building in central Germany
• 23,10 kWp , St. Goar-Werlau / Germany, 2009
• Modules SolarWorld, monocrystalline
• In operation since 30.9.2009
• Produced until end Nov 2011: 46‘000 kWh
© SolarWorld
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Using the whole roof of a small industry building
• Sasbach / southern Germany
• 267 kWp
• yield 254 MWh/yr
• modules: Solon
© Solon
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MW-plant on a logistics centre
• Lodi / Italy, flat roof, 1‘699 kWp
• built by Solon
• yield 1‘800 MWh/yr
© Solon
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Large plant built on greenfield site 2009 would not be allowed today
• Strasskirchen / Germany. 53 MW. 2009.
• built in 5 months by Q-Cells
• modules: Q-Cells polycrystalline
© Q-Cells
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Large plant on former military site 2011
2011
18,9 MWp built in 5 months modules: Suntech yield: 18,7 GWh/a
© Solarhybrid
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Surface requirements of different renewable technologies in Germany
Biomass (corn) > 200 m²/MWh/yr
photovoltaics: < 10 m²/MWh/yr
wind : < 10 m²/MWh/yr surface: (3 x rotor diameter)²
Where applicable, CSP needs about the same surface as PV
electric car with PV
conventional car with biofuel
electricity
transport
factor 20 - 100
factor 250
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CONCLUSIONS
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The semiconductor revolution is reaching the power business – new strategies needed
• Renewables to take over: after market creation by politics, industrial dynamics and technology innovation now push for change
• semiconductor technologies transform power generation, energy management and the grids at unprecedented speed
• Distributed solar power generation will play an important role
• System competence will become most important at all levels, new players are entering the game
• New business models and adapted regulatory frameworks are urgently needed
• A collective international learning process is needed for managing the transition
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Building blocs for a PV strategy
• Structures of electricity markets
• Financial support
• Technical aspects of grid connection
• Permitting procedures
• Industry policy, innovation policy
• Training, ensuring quality
• Financing and insurance
• Mobilisation of final customers, local gov.
© [email protected] 53
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THANK YOU FOR YOUR INTEREST
You will find this presentation and more on my website
www.sustainablestrategies.eu
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Germany: Adapting the feed-in-tariff to market volumes steady market
[email protected] 55 © BSW-Solar
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© EPIA 2011
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Cumulative PV installations per capita in 2010
0 50 100 150 200 250
Brazil
India
China
Taiwan
Canada
USA
S-Korea
France
Greece
Japan
Italy
Spain
Germany
[email protected] Data: EPIA 2011 58
Wpeak per inhabitant