Long-duration energy storage

Form Energy raises $405M for its 100-hour iron-air batteries

The long-duration energy storage startup has raised a total of $1.2 billion. Form is expanding its West Virginia factory and working on its first deployments now.

By Jeff St. John . 9 October 2024

Form's factory in Weirton, West Virginia. (Form Energy)

Long-duration energy storage

Form Energy wins $450M to rust iron for multiday energy storage

The long-duration storage startup is on a fundraising tear as it validates its iron-air battery technology and scouts locations for a U.S. factory.

By Julian Spector . 4 October 2022
Hydrogen

US green hydrogen hub will put long-haul energy storage to the test

The ACES Delta project in Utah is betting billions of dollars that clean hydrogen can provide months of energy storage. Will it work?

By Jeff St. John . 30 June 2022
Long-duration energy storage

Energy Dome is on the brink of a long-duration storage breakthrough

This Italian startup is speeding to market, unlike many of its competitors in the long-duration energy storage sector.

By Julian Spector . 28 June 2022
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
Batteries

Chart: Lithium prices are through the roof this year

What will record-high lithium costs mean for lithium-ion batteries, which are key to electric vehicles and grid energy storage?

By Julian Spector, Maria Virginia Olano . 6 May 2022
Energy storage

Chart: Outpacing even China, the US takes the lead in grid battery investment

Global storage investment grew from $460 million to $4.7 billion in just seven years.

By Julian Spector, Maria Virginia Olano . 4 March 2022
Long-duration energy storage

Iron-air battery maker Form has an unexpected new customer: Georgia Power

The regulated utility is only the second known customer trying out the novel technology for clean long-duration energy storage.

By Julian Spector . 10 February 2022
Long-duration energy storage

Lithium-ion batteries beat novel long-duration tech in California contest

Community coalition opts for tried-and-true standby over flashy upstarts to provide 8 hours of energy storage.

By Julian Spector . 27 January 2022
Long-duration energy storage

Pumped hydro grid storage could be poised for a comeback

Look out, high-concept battery tech: Water and gravity may be on the brink of a resurgence.

By Julian Spector . 25 January 2022
Energy storage

Energy Vault pivots, Ford tantalizes, and more energy storage news

Dispatches from the first solar-storage expo in years.

By Julian Spector . 18 January 2022