Geothermal

Mazama Energy raises $135M for superhot geothermal at Oregon volcano

The startup hit a milestone last year when it drilled the world’s hottest next-gen geothermal well. Now it’s working to prove its tech can scale commercially.

By Maria Gallucci . 17 September 2026

Overview of a snow-covered geothermal site surrounded by tall trees with mountain in background — Mazama Energy’s superhot geothermal project site near Newberry Volcano, Oregon (Mazama Energy)

Geothermal

Dig Energy completes first project with novel geothermal drilling tech

The firm just wrapped work on a heating and cooling system for a Boston office. It says its rig makes drilling cheaper, quieter, and less water-intensive.

By Sarah Shemkus . 10 September 2026
Geothermal

Fervo and Google sign world’s largest deal for next-gen geothermal power

The geothermal startup will supply 400 MW from its Cape Station project to a Google data center in Utah. An initial phase of the project will come online this fall.

By Maria Gallucci . 1 September 2026
Geothermal

Geothermal needs better tools for superhot drilling. Hephae can help.

For next-gen geothermal to scale, drilling costs must drop. Startup Hephae says its novel tech can make that happen — and developers like Fervo are giving it a try.

By Maria Gallucci . 26 August 2026
Geothermal

Sage Geosystems brings its first next-gen geothermal plant online

It’s only the third such project to hook up to the U.S. grid. It comes as surging electricity demand drives interest in the source of around-the-clock clean power.

By Maria Gallucci . 19 August 2026
Geothermal

Geothermal has big potential. Here’s how states can help realize it.

Next-generation geothermal projects are underway in the U.S. West, but states will need more targeted policies for the industry to scale, a new report argues.

By Maria Gallucci . 18 August 2026
Geothermal

Boston explores sea- and river-source heat pumps for big buildings

The city is testing the waters with three projects that will use thermal energy in Boston Harbor and the Charles and Mystic rivers for heating and cooling needs.

By Sarah Shemkus . 17 August 2026
Geothermal

How to bring a geothermal well back from the dead

Startup Zanskar has created one of the most productive geothermal wells in the U.S. by squeezing more life out of a power plant that had been in decline for years.

By Molly Taft . 4 August 2026
Geothermal

An old-school geothermal giant rides the tech’s newfound popularity

Decades-old Ormat is seizing geothermal’s superhot moment by branching into next-generation technology and expanding its traditional plants.

By Maria Gallucci . 20 July 2026
Geothermal

Quaise Energy raises $134M to fuel superhot geothermal ambitions

The startup closed the first tranche of Series B funding as it pushes to build a novel geothermal plant in Oregon and advance its rock-melting drilling tech.

By Maria Gallucci . 7 July 2026
Electrification

How an NYC high-rise is keeping cool with geothermal energy

New York City’s green building laws are pushing developers toward cleaner technologies — even as state policymakers backtrack on climate change targets.

By Maria Gallucci . 1 July 2026