Milan, June 17th 2015

WAME Seminar:Renewable Energy and Innovation to provide sustainable energy for all

The challenge of execution

Argentina• 1° in generation (2) (11%)• 2° in distribution (17%)• Capacity: 4.4 GW• 2.5 M customers

Enel's global presence (1)

Global diversified player in more than 30 countries1) As of 31st December 20142) Among private operators

USA and Canada• Capacity: 2.1 GW

Central America• Capacity: 0.8 GW

Colombia• 1° in generation (2) (21%)• 1° in distribution (2) (22%)• Capacity: 3.0 GW• 2.8 M customers

Peru• 1° in generation (22%)• 2° in distribution (31%)• Capacity: 1.9 GW• 1.3 M customers

Chile• 1° in generation (27%)• 1° in distribution (33%)• Capacity: 6.8 GW (of which 0.5 GW)• 1.7 M customers

Brazil• Presence in generation (1%) and

distribution (7%)• Capacity: 1.3 GW (of which 0.4 GW)• 6.4 M customers

Uruguay• Capacity under construction

Italy• 1° in generation (27%)• 1° in distribution (85%)• Capacity: 36.8 GW (of which 3.1 GW)• 30,7 M customers power-gas• Upstream gas activities

Iberia• 1° in generation (24%)• 1° in distribution (42%)• Capacity: 23.5 GW (of which 1.8 GW)• 12.5 M customers power+gas

Russia• Presence in generation (5%)• Capacity: 9.1 GW• Presence in retail

Slovakia• 1° in generation (82%)• Capacity: 4,9 GW

Rest of

• Presence in generation• 0.7 GW (of which 0.3 GW)• Presence in retail

Europe Indonesia• Trading activities

Africa• ~0.1 GW (of which 10 MW)• Upstream gas activities

Romania• 2° in distribution (36%)• Capacity: 0.5 GW• 2,7 M customers

Enel presenceEnel Green Power presence

# ° Market position % Market shareGW Enel Green Power Capacity

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1. Capacity and production as of December 31, 2014

27%

9%

60%

4%

36%

19%

44%

1%0%

Geo Hydro Wind Biomass Solar

EUROPECapacity: 5,8 GW

Production: 20,7 TWh

NORTH AMERICACapacity: 2,1 GW

Production: 6,7 TWh

LATIN AMERICACapacity: 1,7 GW

Production: 4,4 TWh

Installed Capacity = 9,6 GW

Production = 31,8 TWh

In execution = 2,0 GW

Enel Green Power today Global leadership in renewables development

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4 macro-areas with BD origination

Current EGP Presence

16 countries with operations

Italy

Spain

Portugal

France

Romania

Bulgaria

Greece

Canada

USA

Mexico

Guatemala

El Salvador

Costa Rica

Panama

Brazil

Chile

New markets already addressed

9 countries with advanced project development

Morocco

Turkey

South Africa

Colombia

Peru

Ecuador

Namibia

Kenya

Russia

BD countries under screening Areas of possible future interest

Northern Africa: Egypt, Tunisia, Libya, Algeria

Southern and Eastern Africa: Uganda, Mozambique, Botswana, Tanzania, Ethiopia

South America: Uruguay

Middle East: Saudi Arabia, Qatar, UAE, Oman

Southern and Eastern Asian

EGP Growth StrategyGeographical Diversification: Potential Expansion Areas

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Access to energy

1.4 billion people worldwide currently without access to energy

Universal Access to Energy is the 1st objective of the UN Sustainable Energy for all Initiative (Enel is the only Italian company to sit in the Board of Directors)

Within the framework of SE4All the Enel Group has launched a dedicated program, “Enabling Electricity” including over 30 projects to guarantee access to electricity for 5 million people in the world

Brazil - Ecoelce, Ecoampla & Chile – Ecochilectra

The objective is to stimulate, through discounts on electricity bills, the collection and recycling of waste in the poorest areas of the large urban centers, and at the same time, to allow “legal” use of electricity to people.

ENabling Electricity 2011-2014Enel Main Projects

Partnership with the Barefoot College

Enel Green Power has signed an agreement for the realization of a rural electrification project in Latin America with Barefoot College. The model devised by Barefoot College involves 39 indentifying young, illiterate grandmothers (aged 35 to 50), to be put on a special training program to become Barefoot Solar Engineers.

TOB (Triangle-based Omni-purpose Building)

An independent habitable structure, easily assembled and completely flexible. Through exploitation of the available renewable resources, it produces electricity and accumulates it to make it available when necessary, with the aim to provide energy and essential services in isolated areas

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Enabling Electricity 2015 - 2019New Enel Criteria

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All sustainability projects that are ‘energy’ related by providing:• Access to electricity for disadvantaged people • Training and capacity building on energy • Technological and infrastructural accessibility • Fostering Energy efficiency • Promotion of energy awareness

ACCESS TO ELECTRICITY

Projects that are focused on enabling disadvantaged individuals and communities to have access to electricity, including low income and disadvantage customer facilitations

ABATING ECONOMIC BARRIERS TO ACCESS ELECTRICITY

Initiatives strongly focused on technical aspects, usually designed for workers, contractors, or people in rural communities

PROMOTING TECHNICAL TRAINING AND CAPACITY BUILDING ON ENERGY

Activities focused on infrastructural development aimed at improving access to electricity for communities in isolated areas

DEVELOPING TECHNOLOGICAL AND INFRASTRUCTURAL ACCESSIBILITY

Projects designed to increase and develop energy efficient consumption among customers and use FOSTERING ENERGY EFFICIENCY

PROMOTING ENERGY AWARENESSPromoting projects designed to increase and develop people’s awareness of energy through workshop, training session, lecture and so on

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Last tenders results:

50-70$/MWh Wind

60-80$/MWh PV

Renewables role in meeting demand for power

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Clear sky day Cloudy day

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16/03/2014 19:12 17/03/2014 00:00 17/03/2014 04:48 17/03/2014 09:36 17/03/2014 14:24 17/03/2014 19:12 18/03/2014 00:00

Average Output Power [kW] Maximum Output Power [kW] Minimum Output Power [kW]

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21/03/2014 19:12 22/03/2014 00:00 22/03/2014 04:48 22/03/2014 09:36 22/03/2014 14:24 22/03/2014 19:12 23/03/2014 00:00

Average Output Power [kW] Maximum Output Power [kW] Minimum Output Power [kW]

• Large Variation in few minutes in case of cloudy days

• Good average forecast

Threat or OpportunityPV power plant

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Storage technologies

0 10 20 30 40 50 60 70 80 90 100110120130

Pumped Hydro Storage

Compressed Air Storage

Flow Battery

Flywheel

Heat Thermal Storage

Hydrogen Storage

Lead-acid Battery

Lithium-ion Battery

Nickel based Battery

Sodium based Battery

Molten salt thermal storage

Application number

Tech

nolo

gy

SolarWind

Different types of storage technologies for solar and wind power generation

Lithium–ion batteries are mostly used for RES power generation worldwide

Source: ELIS Counsulting Academy

Storage technologies in solar and wind power generation

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Global Market is expected to rapidly grow for utility scale for ESS

Source: Navigant Research ‘’Advanced Batteries for Utility-Scale Energy Storage

Catania 1 (PV – Italy, 10MW limited to 8MW)- 1MW/2MWh Nickel Chloride Battery installed on December 2014, currently under commissioning

- Aim of the experimentation: focus on energy shifting and ancillary services, while limiting unbalances (COD last week)

Potenza Pietragalla (Wind – Italy, 18MW)- 2MW/2MWh Lithium Battery, to be installed by May 2015; battery currently under construction

- Aim of the experimentation: focus on limiting unbalances and ancillary services

Additional Wind Site: 4MW/1MWh Lithium Titanate Battery, to be installed by 2015. Battery currently ready for installation. To be used for ancillary services using high C-rate battery

Additional renewable site: 1,5MW/3MWh Li-Ion Battery to be installed early 2016 to be used for energy service (low C-rate)

Grid Connected RES Power Plants:

A. Ancillary services (active grid integration and regulation)

B. Energy shift (price arbitrage)

C. Unbalance reduction

Pilot projects on-gridIPP Renewable with Storage

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Off-Grid RES-Hybrid Power Plants:

Primary Energy Resource for remote sites, system must be capable of replacing a conventional generation set, while ensuring reliable operation in typically harsh Environments

Emerging business of potential EGP interest

Ollagüe (Hybrid Generation Power Plant with storage - Chile) – Construction completed, in evaluation phase

Description- PV, 200 kWp 3Sun thin film modules- WTG, vertical axis, 30kWp- Sodium Nickel Chloride battery 250 kW - 520kWh energy

storage system- Diesel Generators as backup- Additional, 2 Thermodynamic systems of 1 kWe + 3kWt

each, providing hot water to local school

Aim of the project - First of a kind off-grid generation system for EGP, possible

model to applied to similar off-grid or grid limited sites- Supply 24hs/day 7 days/week energy to an off-grid village

placed at 3700 AMSL in a desert area of Chile, removing the restriction of the village to having access to energy during night time

- Minimizing the consumption of fuel from existing diesel generator to only limited time in winter (expected >84% of generation from RES)

- Testing advanced renewable technologies and storage system in a harsh environment, with large temperature range

Pilot projects off-gridHybrid Generation Power Plant with storage

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Ollagüe projectSite description

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Population: about 200Activities: mining, public servicesBuildings: 151

Planta Solar PV 205 kWp

Banco de Baterías

tipo 2NaCl-Ni

752 kWh

Generador eólico

30 kW Generador diesel

250 kW

Sistema “pasivo” de generaciónRed Aislada

TRINUM

Sistema termodinámico cogenerativo a concentración

Sistema activo Gestión Remota

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Ollague: Sustainable operation modelParticipation of communities, institutions, business and universities

First level maintenanceIndigenous community

Operation Analysis and Monitoring EGP – El Abra –Supervision Committee–Chile and Antofagasta University

Gestión Técnica -

Gestión administrativa

-Autonomía

- Operation and MaintanceOllague Municipality

“At Enel we are carrying out more than 30 projects through our Enabling Electricity initiative and these projects

have worked because we have been able to directly engage people. The combination of people's empowerment

and commitment has made this model fly.”

Francesco Starace, Enel CEO

Access to electricity: main benefits

Education*: +17% time dedicated to study

Health*: -15% of lightinh costs. These savings are usually devoted to health spending

Economy: increase in entrepreneuship (In Ollague mainly in the tourist sector) thanks to 24/h electricity

* Powering Education, 2014

Ollague Operating Data

Energy Supplied by BESS= 600 kwh

BESS power supplyPV generation and BESS recharging

Diesel Generation, BESS charging to 100%

As day before

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Off-Grid RES-Hybrid Power Plants: Primary Energy Resource

for remote sites, system must be capable of replacing a conventional generation set, while ensuring reliable operation in typically harsh Environments

Emerging business of potential EGP interest

Mexico

US

Chile

Spain

Romania

Greece

Peru

Kenya

South Africa

Grid Connected RES Power Plants:

A. Ancillary services (active grid integration and regulation)

B. Energy shift (price arbitrage)

C. Unbalance reduction

Additional storage opportunities under investigation

Markets currently under scouting

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