Mazama Energy
Mazama Energy engineers superhot rock geothermal reservoirs that deliver gigawatt-scale, always-on clean power. The company's proprietary Thermal Lattice® technology has achieved a record 629°F in an engineered reservoir at Newberry, Oregon, enabling 5-10x more power output per well than conventional enhanced geothermal systems while using substantially less water.
- Energy
- Clean Technology
- Hardware
Funding
Raised to date
$135MRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
across 1 round
CCCDCGFHB+3$135M · Series B
Announced Sep 2026 · from article date
Disclosed cumulative: $135M
Founders
Product
Problem
Conventional geothermal energy development is limited to naturally permeable, high-temperature rock formations, leaving vast geothermal resources untapped. Engineered geothermal systems (EGS) have struggled to reach the extreme temperatures needed to make the economics work, while drilling costs and water usage remain barriers to widespread deployment.
Solution
Mazama Energy engineers superhot rock geothermal reservoirs that unlock gigawatt-scale, always-on clean power. The company drills deep into hot dry rock and creates an engineered reservoir using its proprietary Thermal Lattice® technology, proving the approach at the world's hottest EGS site at 629°F. By targeting supercritical temperatures, Mazama increases energy density per well by 5-10 times compared to conventional EGS, requiring fewer wells and substantially less water while delivering reliable baseload power for utilities and large energy buyers.
Target Audience
Primary customers include utilities, grid planners, and hyperscale data center operators seeking reliable, carbon-free baseload power with minimal land footprint and predictable long-term pricing.
Features
- Thermal Lattice® reservoir technology enabling engineered connectivity between injection and production wells in superhot rock formations
- Records the highest temperature ever reached in an engineered geothermal reservoir at 629°F (331°C) during a 10,200-foot deep pilot in Oregon
- 5-10x more power output per well versus conventional engineered geothermal systems, reducing drilling infrastructure requirements by up to 80%
- Substantially lower water consumption compared to legacy geothermal technologies
- Scaled well architecture designed for faster drilling and improved economics across varying rock quality