Western GeoPower (WGP) has signed an amended power purchase agreement (PPA) with Northern California Power Agency to sell all energy and available environmental attributes from WGP’s proposed geothermal power plant at in Northern California, US.

WGP owns all of the geothermal rights required to develop the project.

The Geysers Geothermal Field, where the plant is located, is the largest producer of geothermal electricity in the world.

The amended PPA adjusts the purchase price, milestones for completing the project and has increased the expected capacity to 26MW.

The term of the PPA has been extended from 20 to 25 years.