Geothermal

Magma and hot rocks: Iceland seeks the future of geothermal energy

Geothermal energy is having a moment globally. Iceland is at the fore, with new research that aims to harness heat from volcanoes and superhot formations.

By Maria Gallucci . 22 July 2024

lava flowing from volcano — Lava flows from the Sundhnúkur volcano near Grindavik, Iceland, on June 2, 2024. (Photo by John Moore/Getty Images)

Clean energy

How California can get to a reliable, 85% clean grid by 2030

A new report finds that more offshore wind and geothermal power could reduce risks of overreliance on massive solar and battery growth to meet state goals.

By Jeff St. John . 10 May 2022
Utilities

A net-zero future for gas utilities? Switching to underground thermal networks

Three pilot projects in Massachusetts will connect ground-source heat pumps to heat and cool entire neighborhoods.

By Jeff St. John . 1 March 2022
Geothermal

Geothermal startup Quaise raises $40M for ultra-deep drilling

The MIT spinoff wants to unleash the vast geothermal resources today's technologies can't reach.

By Maria Gallucci . 8 February 2022
Geothermal

Geothermal project hits roadblock in Nevada, but sector poised to surge nationwide

Judge pauses project over tribal and environmental concerns. Still, technical advances and the huge need for 24/7 renewable power mean geothermal has bright prospects.

By Maria Gallucci . 6 January 2022
Clean industry

Can the US take the lead on cleaner lithium production?

Three companies are attracting private and public funding for their potentially game-changing efforts to extract lithium from brine in California.

By Elizabeth McCarthy . 14 October 2021
Climate crisis

How do you know if a climate policy is good? Here’s the test

Clean electrification at warp speed for the next decade is the most important thing of all.

By David Roberts . 9 July 2021
Climatetech finance

7 cleantech segments beyond wind and solar that are luring investors

Investing in wind and solar is all the rage. But what other cleantech categories are catching the eye of investors in 2021?

By Jason Deign . 21 June 2021
Transmission

Western states look to regional transmission organizations to boost clean energy's pathways to market

Bills in Nevada and Colorado would set a 2030 target for utilities to join regional transmission organizations.

By Jeff St. John . 3 June 2021
Clean energy

California may build 11.5GW of almost all carbon-free resources to replace its last nuclear plant

Regulators have decided that adding 7.5 GW by 2026 won’t be enough after the Diablo Canyon nuclear plant closes. Can California build so much clean and reliable grid capacity in time?

By Jeff St. John . 26 May 2021
Geothermal

Newsletter: Win for geothermal while California braces for heat

We've got three key stories for you today.

By Julian Spector . 20 May 2021