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Renewable Energy Philippines Geothermal Steam Three geothermal plants – located in Malitbog, Mahanagdong and Upper Mahiao in the province of Leyte in southern Philippines – and the Casecnan project – a hydroelectric facility located in the northern part of Luzon, the Philippines’ main island – provide energy from naturally occuring resources. Energy produced by the Malitbog, Mahanagdong and Upper Mahiao projects is from naturally occurring geothermal steam, a preferred energy source because it is reliable, renewable, clean, indigenous and economical. This fuel source is especially valuable in countries like the Philippines where abundant geothermal resources can be utilized to satisfy increasing electric power demands. Run-of-the-River Hydro CalEnergy Generation also operates the Casecnan project which uses nonpolluting, renewable, indigenous hydroelectric sources, as water from the Casecnan and Taan Rivers is collected and diverted by two small diversion weirs. In addition to the project's electricity generation, diverted water also is used for agricultural purposes. Geothermal Virtual Tour Learn how the geothermal process works by taking a virtual tour of one of CalEnergy's geothermal plants. For Your Home | For Your Business | Safety | Rates | Energy Efficiency | Economic Development | Environmental Efforts About Us | Careers | News Room | Storm Center | Wind Energy | Contact | Streetlight Repair Request | System Outage Watch | Energy Choice | For Contractors | For Landlords | ©2008 MidAmerican Energy Holdings Company. All rights reserved.