MGPP

The Maibarara Geothermal Power Project (MGPP) is an integrated 32 MW geothermal steamfield, power plant, and transmission facility in Luzon Island, Philippines. It consists of 1 x 20 MW Fuji condensing turbine and 1 x 12 MW Fuji condensing turbine. The power plants are supplied by steam coming from three (3) production wells while effluents are reinjected in two (2) reinjection wells. The proven reservoir area of about 2.5 km², is a liquid-dominated system with neutral-pH fluids and temperatures that exceed 300°C, comparable to other high-grade geothermal resources in the world. The relatively small reservoir size is suitable for compact development design.

The Maibarara Geothemal Field is situated at the western flanks of the extinct andesite stratovolcano Mt. Makiling. Mt. Makiling belongs to a cluster of volcanoes and domes associated with the Macolod Corridor, a 40-80 km wide northeast-trending zone of active faulting and intense and young explosive volcanism.

The Maibarara Geothermal Service Contract was awarded to Petroenergy last February 10, 2010 under the DOE’s public competitive bidding process. The concession was later transferred to Maibarara Geothermal Inc, a Joint Venture which consists of: PetroGreen Energy Corporation (65%), Phinma Energy Corporation (25%) and the government corporation PNOC-Renewable Corporation (10%). PetroGreen is 100% renewable energy company formed by PetroEnergy Resources Corporation (PERC).

From the service contract award in 2010, MGI embarked on development activities until the first 20 MW power plant (Maibarara-1) was put into commercial operations in February 8, 2014. The reservoir proved to be sustainable that the second 12 MW unit (Maibarara-2) was put into commercial operations on April 30, 2018.

Unlike most geothermal fields that encompass thousands of hectares, MGPP is located within a compact 7.5-hectare land area. The compact development allowed for rapid construction and development, easier field management and monitoring, lesser manpower requirement, and minimized environmental footprint.

The Maibarara Geothermal Power Project is the first renewable energy project successfully developed under the country’s 2008 Renewable Energy Law and the first geothermal power plant installed in Luzon Island in 16 years. Todate, it is the only geothermal power plant in the country not owned and developed by the established energy giants in the industry but by a new and small Philippine private energy firm – Maibarara Geothermal, Inc. (MGI).