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October 5, 2021updated 18 Oct 2021 5:26am

Tongonan 1, Philippines

By Carmen

Tongonan 1 is a 123MW geothermal power project. It is located in Eastern Visayas, Philippines. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in March 1983.

Project TypeTotal Capacity (MW)Active Capacity (MW)Pipeline Capacity (MW)Project StatusProject LocationProject DeveloperGeothermal123123-ActiveEastern Visayas, Philippines


The project is currently owned by Green Core Geothermal.

The geothermal plant is of double flash type. The geothermal site has in total 33 number of wells. Out of this 27 are production wells and remaining 6 are injection wells.

Development Status

The project got commissioned in March 1983.

Power Purchase Agreement

The power generated from the Tongonan 1 is sold to Manila Electric under a power purchase agreement. The power is sold at the rate of $0.1kWh for a period of 5.00 years, starting from 2019.

Contractors Involved

Mitsubishi Power was selected as the steam turbine supplier for the geothermal power project. The geothermal power project consists of 3 turbines. Energy Development, is the steam raising contractor for the project.


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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