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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, 25% of the world’s power produc-tion 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 and efficient power solutions. Alstom can supply anything from single components to complete turnkey power plants. Our Plant IntegratorTM approach and Smart Grid 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 06From 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 08Engineering for longevity with superior materials and tried and tested design. Plant offerings and scopes adapted to your needs with performance as the priority.

Operation and Maintenance Maximising performance and longevity .......................... page 08Meeting the operational, maintenance and support needs of geothermal power producers.

References Geothermal experience over decades .......................................................... page 1050 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 environ-mental products enable us to supply the cleanest power plants in the industry.

Alstom’s Clean Power TodayTM strategy recognises the need to im-prove the environmental balance of legacy plants, while increasing the adoption of new clean energy solutions. Its three pillars are:

1. Focus on production efficiency and energy management2. Implementation of carbon capture and storage 3. Balancing the energy portfolio by increasing the share of renewable technologies.

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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 INTEGRATOR™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.

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

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.

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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 & Maintenance

From components to turnkey solutions Optimising the value chain

As the engineering, construction and procurement (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 to understand direct investments in terms of the ultimate impact on plant profitability.

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Protecting performance by robust and proven designsTough technology

Flexible configurations: Alstom can provide tailored plant configurations for both 60 and 50Hz electricity markets, starting with its smallest plant layout of approximately 15-20 MW in size. In the medium size range of 20-35 MW, we can provide a modular plant based around our well-proven single-flow turbine module. For larger steam fields with proven steam resources, we offer plant sizes in the 35-60+ MW range based around a double-flow turbine configuration, which offers both excellent performance and econo-mies of scale. Alstom plant designs take into account the chance of seismic activity in geothermal locations. We also offer top or lateral exhaust configu-rations to simplify the positioning of the condenser in relation to the turbine and allow for safety-compliant and cost-effective plant layouts.

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.

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 easily maintained.

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.

Proven and validated technology

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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 Operation 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 operations 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.

Operation 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.

Operation 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. Five countries – El Salvador, Kenya, the Philippines, Iceland and Costa Rica – generate more than 15% of their power from this source.

As one of the most important geothermal power producers in the world, Mexico has significant experience in geothermal power and is keenly interested in further exploitation of the resource. 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 early 2010

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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 geo-thermal 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 gene-rating 4.3% of New Zealand’s electricity requirements.

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

Scopedesign • 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 territory, Indonesia possesses an estimated 40% of the world’s total geothermal potential. So far less than 3% (about 800MW) has been exploited. Meanwhile, the population-rich country is heavily reliant on fossil fuels making the development of clean power an urgent priority. The lahendong plant in the North Sulawesi province is therefore an important reference project for Indonesia, and for Alstom as the project manager and lead EPC provider.

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

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

CASE STUDY

Competence in a key growth market

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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.

Alstom PowerBrown Boveri Str. 75401 BadenSwitzerland

www.alstom.com/power

Alstom Geothermal

Eje Oriente-Poniente No. 3Ciudad Industrial, C.P. 58200Morelia, Michoacan, Mexico

Phone: +52 44 33 22 71 00

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