The company in charge of a California project to extract vast amounts of renewable energy from deep, hot bedrock has removed its drill rig and informed federal officials that the government project will be abandoned. The project by the company, AltaRock Energy, was the Obama administration’s first major test of geothermal energy as a significant alternative to fossil fuels and the project was being financed with federal Department of Energy money at a site about 100 miles north of San Francisco called the Geysers.But on Friday, the Energy Department said that AltaRock had given notice this week that “it will...
