20 MW Maibarara Geothermal Power Project Starts Commercial Operations

February 9, 2014

The 20 MW Maibarara geothermal project in Sto. Tomas, Batangas, the newest geothermal power facility in the country and the first under Pres. Benigno S. Aquino’s administration, started commercial operation on February 8, 2014. The Project owner and operator, Maibarara Geothermal, Inc. (MGI) is a joint-venture company 65%-owned by PetroGreen Energy Corp. (PGEC) a wholly-owned subsidiary of publicly-listed PetroEnergy Resources Cop. (PERC)., TransAsia Oil & Energy Development Corp. (TAO) and PNOC Renewables Corp. (PNOC-RC) own 25% and 10% respectively of MGI. The Maibarara project is an integrated power facility comprising of steamfield, power station, and transmission line.


The steamfield was designed and constructed by MGI while the power plant was built by EPC contractor EEI Corp. with Fuji Electric of Japan supplying the main plant equipment. The commercial launch follows an extended facility testing conducted by MGI beginning in 2Q 2013 for the steamfield and in the 3Q for the power plant.

MGI’s power plant is linked by a ~5-km long 115 kV transmission line to the Luzon grid through the Meralco distribution system. The facility was synchronized to the Luzon grid on November 4, 2013 in coordination with Meralco and NGCP.