Mazama Energy Secures $135M for Deep Geothermal Expansion

Deep geothermal drilling firm Mazama Energy secured $135 million in Series B funding to scale operations targeting 15,000-foot wells that generate low-carbon baseload power.

Mazama Energy secured $135 million in Series B funding led by Centaurus Capital and Doerr Capital, with participation from ConocoPhillips, Shell Ventures, Khosla Ventures, and other major investors. The firm targets drilling 15,000 feet deep to access 750°F (400°C) geothermal heat, with each well generating up to 15 megawatts of electricity. Their Oregon site—previously estimated at 5 gigawatts—has been revised to a potential 10 gigawatts capacity, though this remains an optimistic projection. Mazama aims to deliver 200 megawatts of clean power by 2030 from the first operational site. The technology’s scalability is underscored by research indicating just 1% of Earth’s super-hot rock could generate 63 terawatts of electricity globally. This deep geothermal approach offers stable, emissions-free baseload power without fossil fuel dependency—a critical shift for energy security. For communities reliant on expensive, unstable grid sources, this could gradually reduce energy costs while cutting emissions. What to watch: The Oregon capacity estimate’s accuracy and whether Mazama achieves its 2030 output target. The revised 10 gigawatt projection reflects updated geological modeling but remains unverified at scale. This project advances energy security and clean power access without immediate cost reductions for most users.

Source: TechCrunch