TheTechno Optimist.

Newberry Superhot EGS PilotMazama Energy—Mazama confirms Ceres 15 MW pilot will deliver first power in 2027, with Taurus 200+ MW project planned for 2028–2030Newberry Superhot EGS PilotMazama Energy—Mazama drills second well (Athena) at Newberry in 15 days, 80% faster than first well, demonstrating rapid drilling advancementMazama Energy—Mazama Energy closes $135M Series B led by Centaurus Capital and Doerr Capital, backed by ConocoPhillips and ShellNewberry Superhot EGS PilotMazama Energy—Mazama Energy achieves world-record 629°F (331°C) temperature in superhot Enhanced Geothermal System at Newberry Volcano, OregonMazama Energy—Mazama Energy raises $36M Series A led by Khosla Ventures and backed by Gates Frontier

Mazama Energy

Superhot EGS, enhanced geothermal, 629°F records

US$500M est. privateest. 2023mazamaenergy.com (opens mazamaenergy.com)Checked 10 Oct

The brief

Analyst view
  • Record 629°F (331°C) at Newberry Volcano 2025—world's hottest engineered EGS, validating superhot approach.
  • Raised $135M+ in Series A (Khosla, Gates Frontier) and Series B (Sept 2026: Centaurus, Doerr Capital).
  • Advancing Ceres 15 MW pilot (2027) and Taurus 200+ MW (2028–30) using MUSE technology.

Technical approach

As reported
Superhot rock targeting

Engineering at extreme temperatures (>600°F)

Drills deep to superhot zones (>300°C) where rock is hotter but drier, requiring engineered fracturing.

MUSE modular system

Integrated drilling, reservoir, and forecasting

Mazama Drill (high-temp wells), Thermal Lattice (fracture network), HeatHarvester (forecasting) enable repeatable deployment.

Rapid drilling innovation

80% faster well completion

Athena well reached 10,350 ft in 15 days (vs. 80+ days). Speed reduction cuts drilling capex substantially.

Competitive power cost

Modeled at $52/MWh baseload

Engineering targets $52/MWh levelized cost, competitive with natural gas for utility-scale deployment.

Primer