Climatetech finance

Solar

Solar-plus-storage is having a global growth spurt

Investors spent a record amount in the first half of 2026 on projects that combine renewable energy — mostly solar — with batteries.

By Ysabelle Kempe . 4 September 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
Batteries

In Puerto Rico, Trump admin backs big battery project but snubs solar

The Energy Department closed a $490 million loan to Pattern Energy for a 220-MW battery project in Puerto Rico, which could be tied to natural gas instead of solar.

By Maria Gallucci . 12 August 2026
Climatetech finance

Court rules against Trump EPA’s freeze of $20B in ‘green bank’ funds

A federal appeals court finds the EPA acted improperly in terminating grants to boost clean energy projects. The Trump administration may appeal to the Supreme Court.

By Jeff St. John . 4 August 2026
Nuclear

Microreactor startup Valar Atomics raises $1B

Valar, which has been called “the Trump administration’s favorite nuclear startup,” faces a steep path to realizing its vision — even with a giant funding round.

By Alexander C. Kaufman . 4 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
Climatetech finance

Antora snags $550M for heat batteries to run data centers and factories

As the California firm boots up a giant thermal battery system in South Dakota, fresh funds will help it build a second U.S. factory and more large-scale projects.

By Maria Gallucci . 30 July 2026
Nuclear

‘It’ll take more’: CFS nets another $1B to chase nuclear fusion dream

Commonwealth Fusion Systems has now raised a total of $4B to commercialize its nuclear fusion technology. It aims to bring its pilot reactor online next year.

By Alexander C. Kaufman . 30 July 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
Nuclear

Holtec bets big on small nuclear reactors in its IPO filing

As it pivots from shutting down nuclear plants to building them, Holtec says small modular reactors can cut costs and speed construction. Now it has to prove it.

By Alexander C. Kaufman . 15 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