Pumpernickel shows limited surface signs of geothermal activity and, while it was briefly explored in the past, the site had mostly been ignored until now….It could be the state’s largest geothermal power facility, supplying reliable, carbon-free electricity to the grid within three years.

… Zanskar believes there are a lot more conventional geothermal systems that haven’t been discovered in Nevada — geothermal upwellings that don’t reach the surface, he said. “The only way to really discover them is to drill,” Holcomb said.

… Experts at Zanskar use artificial intelligence to expedite and increase the accuracy of the company’s predictions related to areas for exploration and temperature, DeReuil said.

TDK Ventures has invested $38m in a Series A fundraising for Rodatherm, a startup with a new closed-loop geothermal technology.  The money is earmarked for a pilot plant in Utah that will demonstrate Rodatherm’s patented approach to harvesting geothermal heat using refrigerant fluids instead of water flowing through a “closed-loop system.”  A closed-loop system is composed of pipes running down to the hot rock, across the hot rock, and then back up.   By not having the working fluid ever leave the closed-loop piping, Rodatherm can use fluids that they claim transfer heat more efficiently and avoid any fluid losses due to leakage.