Geothermal needs better tools for superhot drilling. Hephae can help.
Published on August 26, 2026
Thousands of feet beneath the desert valley of southwest Utah, a slender tool tucked inside a drill pipe is barreling through hot granite. The rod-shaped device, built by the startup Hephae Energy Technology , is a tracker of sorts, wirelessly sending data to help operators above steer the drill below and to measure…