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Completion of First US Solar Trough Power Plant in Arizona

Ormat Technologies, Inc is pleased to announce that its wholly-owned subsidiary, Ormat Nevada, Inc, completed the Engineering, Procurement and Construction (EPC) of a 1 MW rated Ormat® Energy Converter (OEC) for the APS Saguaro Solar Facility. Arizona Public Service Company (APS) is Arizona's largest and longest-serving electric utility, serves more than one million customers in 11 of the state's 15 counties. With headquarters in Phoenix, APS is the largest subsidiary of Pinnacle West Capital Corporation.

This project, the first solar trough power plant in Arizona, was implemented by APS in collaboration with Solargenix Energy, Ormat, and others, and is the first project to combine solar trough technology with a specially designed Organic Rankine Cycle based OEC power block, similar to the type used by Ormat in geothermal and recovered energy generation power applications.

The plant's process consists of the sun's energy being concentrated by parabolic mirrors in a trough formation to receivers. This concentrated solar energy heats up thermal oil, which then transfers its heat to the OEC power unit working fluid. Use of Organic Rankine Cycle technology facilitates generation of power even with fluctuating and low temperature heat.

Scott Canada, APS Project Engineer, said: "APS believes that this plant is an example of the future of energy generation and provides an excellent opportunity to continue leading the development of renewable energy in the US." He went on to say: "APS is proud of the effort of all the team members who worked together to make this innovative project a reality. The experts from Ormat, Solargenix and APS were one of the main reasons the project was a success."

Lucien Bronicki, Chairman and CTO of Ormat Technologies, said: "Ormat is proud to have been associated with this project, which we hope will serve as a demonstration of the potential market for solar trough power projects in the US."

This same OEC technology has a proven track record of low maintenance and high reliability in the operation of over 800 MW of Ormat geothermal and recovered energy generation power projects worldwide.

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