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October 5, 2021updated 20 Oct 2021 8:49am

Upper Mahiao, Philippines

By Carmen

Upper Mahiao is a 125MW geothermal power project. It is located in Leyte, Philippines. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in 1996.

Project TypeTotal Capacity (MW)Active Capacity (MW)Pipeline Capacity (MW)Project StatusProject LocationProject DeveloperGeothermal125125-ActiveLeyte, PhilippinesOrmat Technologies


The project was developed by Ormat Technologies and is currently owned by Energy Development.

The geothermal plant is of binary type. The geothermal site has in total 39 number of wells. Out of this 29 are production wells and remaining 10 are injection wells.

The project cost is $180m.

Development Status

The project got commissioned in 1996.

Contractors Involved

Ormat Technologies was selected to render EPC services for the geothermal power project.

Ormat Technologies was selected as the steam turbine supplier for the geothermal power project. Energy Development, is the steam raising contractor for the project.

About Ormat Technologies

Ormat Technologies Inc (Ormat) is a provider of renewable power and energy solutions with focus on geothermal and recovered energy generation. The company designs, develops, builds, owns, operates and stores power generation plants. It manufactures, distributes and sells products to generate geothermal electricity. The company also designs, manufacture and sells power units that generate electricity from recovered energy or waste heat. Ormat offers geothermal power generation equipment, completion of power plants on turnkey basis for developers, utilities and industrial customers. It sells electricity through long-term purchase agreements. The company operates in Latin America, Asia, East Africa and Europe. Ormat is headquartered in Reno, Nevada, the US.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

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