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Drilling 12 Miles Down to Tap Geothermal Energy

Quaise Energy, a Boston company, is using tech from nuclear fusion experiments to reach new depths.

A millimeter wave transmission line carries electromagnetic energy from the gyrotron to the rock chamber underground. Location: Oak Ridge National Laboratories

A millimeter wave transmission line carries electromagnetic energy from the gyrotron to the rock chamber underground. Location: Oak Ridge National Laboratories

Source: Quaise Energy

Most geothermal power today comes from natural geysers or drilling operations that plunge a few miles down to harness heat from buried rock. 

Quaise Energy, a startup based in Boston, is taking a third approach: digging deeper—and using more heat—than any company has before. To do so, it’s refashioning a millimeter-wave drilling technique from nuclear fusion experiments.