FP46g 060118 Tomorrow” March 2007

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GREEN ENERGY “The Reality of Today, and the Promise U.S. Geothermal Development at actual future results be may ogies, Inc., its advisors, affiliates or ents in this presentation, please see lar statements), you must remember ll as oral statements made by the with the Securities and Exchange ect, as a result of certain and risks ssion of the risks and uncertainties 2005 Annual Report on Form 10-K, 2005 Annual Report on Form and listen to these statements looking statements, even though our looking statements, even though our correct, even though we believe they ange Commission on March 28, 2006 orward-looking statements.” Whenever what we “believe”, “expect”what we “believe”, or

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GREEN ENERGY Statements in this presentation as we We will not update these forward- officers or directors of Ormat Technol subsidiaries often will contain “f you read or hear a statement that is not simply a statement of historical fact (such as when we describe “anticipate” will occur, and other simi that our expectations may not be should read are reasonable. You completely and with the understanding th materially different from what we exp a complete discu uncertainties. For relating to the forward-looking statem “Risk Factors”our as described in filed with the Securities and Exch and the Prospectus Supplement filed 5, 2006. Commission on April situation will change in the future. on

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you can can you RMOTC/ TX EGS Plug & Play – – – GREEN ENERGY Summary Ormat Ormat ORC Technology Environmental Benefits Emerging Technologies • • • • • in the United States

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depend ORMAT at a Glance ORMAT at a Glance you can can you With 40 Years of success Ormat Technologies Inc. NYSE (ORA) listed Approx 300 Mw installed Develop, design, build, own, operate Turnkey supply Equipment sales Finance Approx 850 MW of installed capacity worldwide – – – – – – – – Vertically integrated alternative energy company Geothermal and recovered energy power plants and projects Flexible business model in the energy industry

GREEN ENERGY • • • Unit for Alyeska 1976 P/L 1 MW ORC Solar Thermal Project –Arizona 2006 –Arizona Project 1 MW ORC Solar Thermal High Reliability ORC Power ORC Power High Reliability

on 40 years of ORC technical innovation 40 years of ORC technical innovation depend – –

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GREEN ENERGY Solar Powered ORC Water Pump – ORC Water Solar Powered Mali 1966 5 MW Solar Pond Collects and Stores Energy -5 MW Solar Pond Collects 1982 1996 2000, 2005 Ormat Innovative Technology drives 80 U.S. vendorsand subcontractors coast to coast, markets emerging to Over 80 main suppliers main 80 Over 3 2 4 2 2 1 1 1 1 3 1 7 1 1 2 1 2 125 MW Upper Mahiao Mahiao MW Upper 125 Plant Philippines the Leyte, 3 6 1 1 2 100 MW Mokai Geothermal Power Plant Zealand New 5 20 2000 cognized Leader in Geothermal 13 MW Okkaria Geothermal Power Plant Naivasha, Kenya

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you can can you 1984 Innovative Technology Drives Exports

GREEN ENERGY Nationally and Internationally Re 800 kW OEC Wabuska, NV 21 MW Burdette Geothermal Power NV Plant, 40 years of ORC Technology Development 40 years of ORC Technology Development 2000 1996 125 MW Upper Mahiao Combined Geo- Power Plant, Philippines 60 MW Mokai Combined PowerGeothermal Plant, New Zealand 1992 2006 1994, 1998 Plants Plants 30 MW Puna Combined PowerGeothermal Plant, Hawaii 20 MW Burdette Binary 20 MW Burdette Binary Geothermal Power Plant, Nevada on

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GREEN ENERGY 850 MW of Commercial Geothermal Power 850 MW of Commercial Geothermal Power 57 MW Ormesa Binary Binary 57 MW Ormesa Complex, California Geothermal 40 MW Heber Geothermal No. 2 Geothermal 40 MW Heber Plant, California, Power Binary 2453 on

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you can can you 8,666 tons of CO2 / MW 36.6 tons of SO2 / MW 12.5 tons of NOx / MW 11,000 gallons of water / MW Based on the International Energy Agency (IEA) The Environmental Impact The Environmental Impact – – – – (*) Off setting a coal-fired power plant at 38% efficiency* One Megawatt of will annually avoid(*):

GREEN ENERGY • on Environmental Impact Environmental Impact

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you can can you 6 million tons of CO2 2 million tons of Oil The equivalent fuel used by 800,000 cars

– – – GREEN ENERGY Ormat Ormat’s 800 MW of Geothermal Power around the world are annually avoiding: Ormat • on Considerations Considerations

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you can can you Power Plant Technology Power Plant Technology

GREEN ENERGY Successful geothermal power plants require matching the geothermal resource with optimum power plant. Power generation factors are: (i) system simplicity; (ii) maintenance requirements; (iii) reservoir management, (iv) environmental considerations, and (v) power plant reliability. The optimum power cycle should allow injection of all of the geothermal fluid for long term reservoir sustainability. Successful geothermal power plants require matching the geothermal resource with optimum power plant. Power generation factors are: (i) system simplicity; (ii) maintenance requirements; (iii) reservoir management, (iv) environmental considerations, and (v) power plant reliability. The optimum power cycle should allow injection of all of the geothermal fluid for long term reservoir sustainability. • • • • • • 24 MW Zunil Geothermal Power Plant, Guatemala Binary Geothermal Power Plants

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you can can you 30 MW Puna Geothermal Power Plant, Hawaii Improving Project Viability by Matching Improving Project Viability by Matching the Geothermal Power Plant to Resource the Geothermal Power Plant to Resource

GREEN ENERGY Combined Cycle Geothermal Power Plants on

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you can can you The Promise of Tomorrow The Promise of Tomorrow

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GREEN ENERGY Collaborative R&D project R&D project Collaborative with the Bureau of Reclamation and UTEP 70 kW Solar Pond ORC Power Unit at El Paso, Texas In operation from 1986 to 2002 temperatures of 154ºF to 190ºF Field Proven, Low Temperature, Field Proven, Low Temperature, • • • • • production production - - tion system to produce

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you can can you Oil and Gas Co Oil and Gas Co GREEN ENERGY Ormat signed a shared-cost Cooperative Research the US and Development Agreement (CRADA) with Department of Energy (DOE) Ormat will validate the feasibility of proven technology for the production of commercial electricity using water produced during the process of oilfield production. The project will be conducted at the DOE Rocky Mountain Oil Test Center (RMOTC), near Casper Wyoming, and will use an Ormat (ORC) power genera commercial electricity. • • • on

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you can can you Texas lease acquisition Texas lease acquisition

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GREEN ENERGY Collaborative R&D project: Ormat Geothermex, Inc University of Utah, Energy & Geoscience Institute University of Nevada Reno Cost Sharing with DOE • • • • • • . Supplying local electrical electrical local Supplying power and energy for crop drying and cold storage since 1989. 17 years of operation 250 kW air-cooled geothermal CHP plant generating electrical power as well district heating, by utilizing a low temperature geothermal resource. 5 years of operation 2001 1989 Bad Blumau, Austria Bad Blumau, Power Plant, Thailand at Rogner Hotel & Spa, 300 kW Egat Geothermal 250 kW Geothermal Power Unit . .

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depend Owner installed plant plant Owner installed using Ormat supplied equipment, and documentation assistance technical First commercial First commercial geothermal application in Nevada. 800 kW OEC. with power supplied to Sierra Pacific Power Co. 22 years of operation

you can can you 1.8 MW Oserian Geothermal 2004 1984 Power Plant in Naivasha, Kenya Naivasha, Power Plant in

GREEN ENERGY Plug and Play On Site Geothermal Power Ormat supplied equipment for remote and rural applications Plug and Play On Site Geothermal Power Power Unit, Nevada. Pre-Packaged Equipment Supply for Self Construct 800 MW Wabuska Geothermal Tourist Resort Tourist Resort - -

on F Geothermal Fluid from Hot Spring F Geothermal Fluid from Hot Spring o o depend installation at RMOTC Casper, Wyoming 210 210

you can can you from from 250 kW OEC Power Plant Provides & Heat 250 kW OEC Power Plant Provides & Heat

GREEN ENERGY Similar to the ORC power unit being supplied under CRADA for On Site Power for Austrian Eco On Site Power for Austrian Eco Summary Summary

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you can can you RMOTC / Oil & Gas EGS Plug & Play for onsite power • • • GREEN ENERGY Ormat’s success is a result of matching geothermal resources with field proven, and time tested technologies. Ormat’s U.S. Geothermal generation has saved 2.5 million tons of CO2, 3,750 Tons NOx, 3.3 tons of H20 Ormat is committed to innovation, and successfully implementing innovative technologies such as: • • •

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GREEN ENERGY NEVADA, USA BURDETTE GEOTHERMAL POWER PLANT BURDETTE GEOTHERMAL