A subsidiary of Ormat Technologies, Inc. announced that it had signed a 20-year Power Purchase Agreement with Nevada Power Company for energy that will be produced from the Grass Valley Geothermal Power Plant. The plant will have a gross output of between 18 and 30 MW (Ormat press release, May 2007). The site is in the vicinity of Hot Springs at Hot Springs Point, Lander County, on the west side of Grass Valley. A series of gradient and observation well permits have been issued with some having already been drilled. The wells are in Secs. 15, 16, and 21 of T24N, R47E.

In 2005, Ormat ran chemical analyses on 90.5C hot spring discharge, which indicated a potential 177C reservoir temperature based on silica geothermometry. Ormat developed a geologic model that indicates a concealed fault lies 760 meters northeast of the hot springs. It is probable that hot water circulating up this fault is providing source fluids for the nearby hot springs.