Mazama raises $135M to make power from super-hot rock

Mazama Energy raised $135 million to build full-size power plants using ultra-hot rock deep underground, like tapping a giant kettle for steady electricity. The second major funding round drew extra interest and was led by Centaurus Capital and Doerr Capital, with ConocoPhillips, Shell Ventures, longtime Khosla Ventures and Gates Frontier, plus newcomers SiteGround Capital and H. Barton Asset Management.