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25 percent of the world‘s power pro-duction capacity depends on Alstom technology

52.000 employees around the world in 70 countries

100 years of industry leading expertise

Alstom is a global leader in power generation with a portfolio of products covering all fuel types. From fossil and biomass to nuclear and renewables, close to 25% of the world’s power production capacity depends on Alstom technology or services.

Whether in design, manufacture, procurement or servicing, Alstom is setting the benchmark for innovative technologies that provide clean, efficient, flexible and integrated power solutions. Alstom can supply anything from single components to complete turnkey power plants. Our Plant IntegratorTM approach and power automation and control solutions ensure the optimisation of all elements to derive the maximum lifetime value from all our customer’s investments.

Alstom has more than 100 years of experience in engineering, procurement and construction (EPC) of new power plants. But our engineers are also experts in retrofitting, modernising and servicing existing plants. With operations in 70 countries, Alstom is close to customers all over the world, ensuring rapid responses and service excellence at all times.

Welcome to Alstom Power

Provider of the cleanest integrated power

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Clean power from the planet’s core

The Alstom advantages From the global view to the fine details .................................. page 04An impressive track record and portfolio of proven products. A global footprint.

From components to turnkey solutions Optimising the value chain ............................ page 08From procurement of the opportunity, through construction, to operation and maintenance, Alstom optimises every decision to add long-term value.

Tough technology Protecting performance by design .................................................... page 10Engineering for longevity with superior materials and tried and tested design. Plant offerings and scopes adapted to your needs with performance as the priority.

Service and maintenance Maximising performance and longevity ............................... page 12Meeting the operational, maintenance and support needs of geothermal power producers.

References Geothermal experience over decades .......................................................... page 1450 years of production in New Zealand, cost effective field expansion in Mexico and positioning in one of the world’s largest potential geothermal markets.

Access to reliable and affordable power is the key to an improved standard of living for everyone. However, it is essential that this power be pro-duced without negative environmental side effects. Alstom’s Plant Integrator™ solutions maximise

performance, while our extensive range of environmental products enable us to supply the cleanest power plants in the industry. Alstom’s Clean Power Today® strategy recognises the need to im-prove the environmental balance of legacy plants, while increasing the adoption of new clean energy solutions.

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As one of the most reliable of the renewable energy resources, geothermal power plays a key role in Alstom’s clean power offering. Irrespective of weather conditions, a geothermal plant will provide a steady output and respond easily to changes in demand. Alstom pioneered the commercial exploitation of geothermal power in New Zealand in the 1950s. Today, we offer geothermal solutions worldwide, based on our global footprint and technological lead.

ClEAn POWER TOdAy!®

PlAnT InTEgRATORTM

Improving the efficiency of a power plant depends on fine tuning complex interactions between diverse sub-systems. Building on decades of turnkey solutions expertise, Alstom is able to reframe any specific question in terms of the impact on the overall availability and flexibility of the plant. We call it the Plant IntegratorTM approach: it helps operators to maximise their total plant performance while fully complying with environmental, regulatory and commercial constraints.

lIFECyClE MAnAgEMEnTWhen considering the environmental balance of a given fuel type or technology, one has to take into account the full lifecycle. This means assessing the entire process from procurement and construction to operation and maintenance. Alstom’s support and commitment throughout the component or plant lifecycle allows owners to maximise their return on investment while minimising negative environmental side effects.

From the global view to the fine detailsThe Alstom advantages

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From the global view to the fine detailsThe Alstom advantages

A centre of competence with global reach The headquarters of Alstom’s geothermal business is in Morelia, in the State of Michoacán, Mexico. From this centre of competence, Alstom can deliver geothermal solutions to customers anywhere in the world. Alstom’s geothermal business leverages our extensive engineering, manufacturing, sourcing and project management base spread across the globe. Alstom’s expertise in geothermal components and turnkey plants is supported by a global network of local service centres, giving us a global reach and the ability to serve customers wherever the opportunity surfaces.

Turbine expertise At the heart of any geothermal power plant is the steam turbine. With more than 100 years of experience in all types of steam turbines, Alstom offers high-performance solutions for the geothermal environment. Our products combine efficient designs and advanced blading, robust coatings and system control architectures to deliver optimum performance and extend component life.

Alstom is a proven leader in harnessing of geothermal energy. We offer modular and adaptable solutions based on state-of-the-art technology, honed by years of experience and delivered through a global organisation.

In 1958 Alstom pioneered the construction of the world’s first large-scale commercial geothermal power plant in Wairakei, New Zealand. Today Alstom remains committed to staying at the cutting edge of geothermal innovation and offers a range of world-class modular solutions for rapid and cost-effective deployment. Besides an extensive portfolio of proven technologies, Alstom can create custom-made solutions for the most challenging and innovative geothermal applications.

Bexbach (Germany)Turbine Blades, Vanes

Birr (Switzerland)Turbine Rotors, Blades

Elblag (Poland)Turbines, FoundryEngineering Services

Delhi (India)Engineering Services

Surabaya (Indonesia)Operations, Manufacturing

Morelia (Mexico)Geothermal Headquarters

Turbines, Turbogenerators Manufacturing

Paris (France)Pumps, Control Systems

Rugby (UK)Engineering Services

Belfort (France)Turbines, Turbogenerators

Mannheim (Germany)Turbines

Engineering Services

Wuhan (China)Engineering Services

Kuala Lumpur (Malaysia)Engineering Services

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Alstom offers a complete portfolio of power generation equipment and services for all fuel types. By 2030 the world will have seen a significant change in the power generation mix with an increased share of renewable power. Alstom has a strong role to play in the booming geothermal power market.

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Power plant development Turbine and component supply

From components to turnkey solutions

geothermal energy is available adjacent to porous and fractured hot rock along the earth’s tectonic plate fault lines. Once a suitable site is located, Alstom can help you analyse the geothermal resource and design a suit-ably optimised plant configuration adapted to the local climate, geology and terrain. Our goal is to increase your project realisation chances while lowering your development risk.

We procure opportunities for our customers with the following services:

•Geothermal steam analysis •Earlystageplantconfiguration•Project planning and advisory services

geothermal turbines must withstand corrosive impuri-ties, wet steam and seismic conditions. Building on Alstom’s extensive experience in industrial, conven-tional and nuclear steam turbines, we offer robust designs and durable components that are adapted to the challenges of the geothermal steam resources. All our plant systems are designed to resist wear and damage and to facilitate practical inspection, mainte-nance and replacement.

We engineer reliable solutions with the following services:

•Turbine selection and design•Component and material sourcing•Manufacturing•Transport and assembly

PlAnT InTEgRATOR™

Our engineering team assesses steam conditions, site location and commercial requirements to help you optimise the plant configuration and maximise project value.

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Power plant construction Operation and maintenance

From components to turnkey solutions Optimising the value chain

As the engineering, procurement and construction (EPC) provider, Alstom has commissioned more than 360 conventional steam power plants during the last 30 years. Drawing on this expertise, Alstom now pro-vides full EPC services for geothermal power plants.

We construct optimised solutions covering the:

•Steam receiving •Turbine and generator •Condensing, gas ejection and cooling system •Power plant distributed control system (DCS) •Piping, valves and power island balance of plant (BOP)•Electrical cabling and high-voltage power export•Civil engineering•Plant construction management

Having supplied major components to more than 1170GW of power generation around the world, Alstom is not just a leading global original equipment manufacturer (OEM) and an EPC provider. In addition, we are also responsible for the operation and maintenance (O&M) of a major portion of non-Alstom equipment and plants worldwide.

The base-load nature of geothermal steam plants means that unplanned downtime is especially costly. We recog-nise the tension between maintaining everyday baseload plant output and the need to undertake preventative measures to avoid costly unplanned outages.

We offer a range of operation and maintenance services packaged either as long-term service agreements com- bined with the plant warranty, or as troubleshooting services on a case-by-case basis.

Adding long-term value The Plant IntegratorTM approach creates added value for the client by optimising the entire value chain and the overall plant per-formance. As an OEM, EPC and O&M provider, Alstom has a unique perspective that allows the analysis of the whole plant and the full lifecycle as an integrated system. Using proven models and established benchmarks, specific investment costs can be understood in their true context. By revealing the impact on the key performance parameters – efficiency, reliability and availability, we help you tounderstanddirectinvestmentsintermsoftheultimateimpactonplantprofitability.

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Protecting performance by robust and proven designsTough technology

Flexible configurations: Alstom can provide plant from 15 MW to 135 MW in order to meet each customer’s needs: Smallest plant layout of approximately 15-35 MW using single flow turbine

module For mediu m size plants (35-65MW): plant layout based around our single

flow module in 50Hz and double flow module in 60Hz For larger steam fields with proven steam resources in 50Hz markets

Alstom offers power plant sizes in the 65-135MW range based around a double-flow turbine configuration, which offers both excellent performance and economies of scale.For each project, Alstom always take into account issues like safety, cost effectiveness and to offer the most optimised solution.

The geothermal products and services offered by Alstom incorporate the latest know-how and technology focussed on the particular challenges of the geothermal industry. Alstom turbines offer the ideal combination of performance and dura- bility. In geothermal, we use robust direct drive turbines to cope with the demands of wet steam with dissolved impurities. By working with opti- mised blade forms, fewer stages and broader clearances, our turbines cope reliably with even the most challenging steam compositions.

Proven and validated technology

Selected Design Features

Materials Alstom geothermal steam turbines

are built with special steel alloys and are heat-treated to protect against the corrosive effects of dissolved gases, impurities and water droplets. Induction hardening or stellite

shielding can be employed to extend the lifetime of the last-stage blades where lower temperatures increase the risk of water droplet erosion.

The Alstom distributed control system (DCS) minimises false alarms and maximises plant protection.

Instant closure of the inlet valves is critical to the safety of a geother-mal plant. Alstom valves are specially designed to prevent blocking through fouling or scaling.

To reduce erosion of the moving blades, efficient Alstom water traps drain excessive steam condensate between each turbine stage.

The plant layout and component design protect auxiliary and electrical systems from corrosion that could occur during steam venting.

Hybrid ejector and vacuum pump systems extract noncondensable gases from the condenser to main-tain condenser efficiency.

labyrinth seals are used for the main shaft, these being simple, robust and easilymaintained.

Triple control security prevents backflowfrom the condenser to the turbine.

The design of Alstom’s steam strainer reduces particle ingressions with a minimum pressure drop.

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Protecting performance by robust and proven designsTough technology

EPC and service offeringsOur flexible plant offering can be fully adapted to your needs. Because there is no reliability without assured steam quality, Alstom insists on a minimum scope of the steam enhancement and power island systems. However, by ordering a complete turnkey power plant, Alstom can take care of every aspect of design, engineering, procurement and construction.

Owners, especially independent power producers, can also benefit from the addition of an Alstom extended service contract to cover the day-to-day running and maintenance of the plant. As a leading global O&M provider Alstom can tailor a package to exactly suit your plant and business strategy.

Flexible, modular scope for maximum customer value

• Steam receiving system • Power plant layout and design• Civil works• Piping, valves and balance of plant • Gas ejection and cooling system • Plant control and electrical system• High voltage switchyard• Delivery, erection and commissioning• Construction, project management and execution

FULL SCOPE – turnkey power plant

COMPOnEnT SCOPE – power island

• Steam turbine and auxilliaries• Generator• Condenser• Hotwell pumps• Instrumentation and control system• Delivery, erection and commissioning

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A partnership for performance When you choose Alstom as your OEM, EPC or O&M provider you are buying into a wealth of steam-turbine know-how and experience. In addition, as a full-service provider, we offer contracts, tailored to meet all your operational, maintenance and support requirements for geothermal power plants.

Alstom’s O&M contracts are a transparent set of answers to the business critical questions that every power plant owner faces. We focus on speed in response, flexibility, lead times in project execution and tailored solutions that suit best to requirements of geothermal plant customers.

Alstom's service and maintenance strategies aim to:

• Improve generation efficiency • Maximise availability • Extend component and system lifetimes

The keys to achieving these goals lie in system and com-ponent optimisation, effective planned maintenance and suitable upgrades and retrofits. In accordance with our clean power strategy, we always consider profitability and commercial excellence in the wider context of environmental, health and safety considerations.

Consulting & SupportWe help customers maximise plant performance, availability and reliability by offering performance and lifetime assessments, training, monitoring and diag-nostics. Advanced analysis of fleet-wide data allows us to help you reduce risks and optimise availability.

PartsWith Alstom, you’ll never be without the parts you need. Apart from off-the-shelf spares, we offer repairs and reconditioning as well as custom-made compo-nents. Our advanced component management system ensures the traceability of parts, accessibility of data and competitiveness of pricing.

Field ServiceThere is always an Alstom engineer close at hand. Supported by our global centre of geothermal com-petence in Morelia, Mexico, the local service network provides a rapid response capability to reduce outage time and increase performance.

O&M contracts We offer a portfolio of operation and maintenance contracts based on performance commitments and incentives. The flexible offering covers engineering, products and services over the plant’s full lifecycle and can be tuned to match your business objectives.

Service and maintenanceMaximising performance and longevity

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ALSPA® – the brain behind the power added value Alstom is a world leader in the field of automation and energy management. We provide state-of-the-art solutions for power plant automation, control, protection and optimisation as well as the management of grid connections and sub-station equipment. With our in-depth knowledge of the power plant assets, we can design and deliver automation and control solutions that are tailored to your needs. The Alstom power automation product line – ALSPA® – extends across the entire plant, from the control room with plant management, operation and optimisation tools, through plant and machine automation, to asset management and remote diagnostics systems.

The ALSPA® Series 6 is a very scalable system which can be as easily implemented on a very large thermal power plant as on a small geothermal power plant. It incorporates, within consistent sets of hardware and networks, all key pro-cesses for control, optimisation, protection and advanced asset condition monitoring. Using an advanced architecture, ALSPA® offers an unparalleled level of control, integration and performance enhancement for a geothermal power plant.

Service and maintenanceMaximising performance and longevity

Alstom's energy management products can add value by:

• Increasing plant reliability • Increasing plant efficiency • Increasing plant operational flexibility and availability

• Improving asset scheduling • Improving power quality

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References Geothermal plants that stand the test of time

Worldwide presenceAt the commonly used depths of up to 3,000 meters, accessible geothermal resources are unevenly distributed, concentrated near tectonic plate boundaries where the Earth’s crust is thinner. 24 countries produce geothermal electricity, most of them in the Pacific’s Ring of Fire.

The vast majority of generation capacity is concentrated in a handful of countries: the U.S, the Philippines, Indonesia, Mexico, Iceland and New Zealand. Alstom’s geothermal competence, based out of Mexico, leverages the full global reach of the Alstom network.

With more than 52,000 employees in 70 countries around the globe, Alstom Power combines local presence and knowledge with global resources in order to deliver the technology and service that meet the high expectations and needs of our customers.

Alstom installed base*El Salvador: 10MWFrench West Indies: 5MW Indonesia: 20MWMexico: 161MW (111MW in operation, 50MW in execution)New Zealand: 191MW

* Status mid 2011

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Geothermal plants that stand the test of time

WairakeiNew ZealandThe Wairakei plant is a reference case for Alstom innovation: it was the second geothermal plant in the world to begin commercial operation and the first to exploit very hot water as the source of steam. With suitable retrofits and upgrades, the Wairakei plant has operated steadily for more than 50 years at 90% of maximum output, supporting New Zealand’s renewable energy requirements.

Customer: ............................ Contact Energy limitedSteam source: ...................... Single flash geothermal steamElectrical output: ................. 2 x 6.5MW, 8 x 11MW, 3 x 30MWCommercial operation: ........ 1958

Scope• design • Engineering• Implementation• Erection and commissioning

CASE STUDY

Over 50 years of efficient production

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LahendongIndonesiaWith nearly 200 active volcanoes and 100 geothermal fields spread over its terri-tory, Indonesia possesses an estimated 40% of the world’s total geothermal potential. Located in the province of North Sulawesi, the Lahendong geothermal power plant provides electricity to the Minahasa district, about 30km south of the province’s capital city Manado. Operating as baseload power since 2001, Unit 1 of the lahen-dong geothermal power plant represents one of the cleanest and most cost-effective sources of electric power available in Indonesia.

Customer: ........................... Perusahaan listrik negara (Pln)Steam source: ..................... Single flash geothermal steamElectrical output: ................ 1 x 20MWCommercial operation: ........ 2001

Scope• Project management• Engineering and site supervision • Power island • Mechanical balance of plant

CASE STUDY

Competence in a key growth market

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Los AzufresMexicoMexico is the fourth largest geothermal energy producer worldwide after the USA, the Philippines and Indonesia. The Los Azufres II geothermal power plant is located in the Mexican state of Michoacan, 200 km west of Mexico City and only 80 km east of Alstom’s Morelia manufacturing site, a state-of-the-art centre in the manufacturing and assembly of turbines, generators, large-sized-diaphragm and blade fabrication. Operating as baseload power since opening in 2003, units 13 – 16 at los Azufres II feed the nation’s electrical distribution grid and in total are capable of producing more than 800 GWh of clean electricity per year. In addition, these units represent one of the most cost-effective sources of electricity available in Mexico.

Customer: ........................... Comisión Federal de Electricidad (CFE)Steam source: ..................... Single flash geothermal plantElectrical output: ................ 4 x 25MWCommercial operation: ........ Unit 13 – April 2003........................................... Unit 14 – May 2003........................................... Unit 15 – May 2003........................................... Unit 16 – June 2003

Scope• Project management• Engineering and site supervision • Power island • Mechanical balance of plant• Civil work• Cooling tower• HV substation

Most cost-effective source of clean electricity

CASE STUDY

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Los HumerosMexicoIn 2009, Alstom was awarded a turnkey contract for Los Humeros II Phase A, followed by a turnkey contract in January 2010 for Phase B, located in the Mexican state of Puebla. los Humeros II geothermal power plant will use the geothermal resource using drilled wells to extract steam from a depth of up to 2,000 meters where the geothermal reservoir is located. When completed in May 2012, the plants will produce more than 400 GWh of clean electricity reducing Mexico’s CO2 emissions by 230,000 tonnes per year.

Customer: ........................... Comisión Federal de Electricidad (CFE)Steam source: ..................... Single flash geothermal plantElectrical output: ................ 2 x 25MWCommercial operation: ........ 2012

Scope• Project management• Engineering and site supervision • Power island • Mechanical balance of plant• Civil work• Cooling tower• HV substation

CASE STUDY

Integrated turnkeygeothermal power plant

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Alstom 4 avenue André Malraux92308 Levallois-PerretFrance

www.alstom.com/power

Alstom Geothermal

Eje Oriente-Poniente no. 3Ciudad Industrial, C.P. 58200Morelia, MichoacanMexico

Phone: +52 44 33 22 71 00