The problem is that all that lovely energy is trapped miles beneath the Earth's crust, and the costs of reaching it are astronomical. As a result, today's geothermal power is a niche source that's ...

A new project will explore the potential for geothermal power in the U.S., which could change the landscape for the HVAC ...

Idaho has one of the highest concentrations of hot springs in the U.S. Gold Fork Hot Springs near McCall, pictured here, was once a popular tourist destination. Geothermal scientists say the hot ...

Early next year, the Texas grid will get its first dose of clean power from underground — by means of a “battery” buried in the rock. On Tuesday, the San Miguel Electric Cooperative announced a deal ...