Climatetech finance

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)

Podcast

How has US industrial policy impacted climatetech investment?

The $213 billion in new climatetech investment made over the past year seems to have had mixed results so far.

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By Shayle Kann . 52 min . 12 October 2023
Podcast

Climatetech startups need strong techno-economic analysis

A good TEA is the unsung linchpin of early-stage climatetech.

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By Shayle Kann . 49 min . 5 October 2023
Marine transport

Electric boat builder Arc raises $70M for cleaner, quieter vessels

The Los Angeles–based startup is working to build a "mass-market" boat for water sports. Demand for electric vessels is rising as boaters look for less-polluting ways to ply rivers and lakes.

By Maria Gallucci . 27 September 2023
Batteries

Is graphene a cleantech supermaterial? This startup thinks so

Lyten recently raised $200M to scale up production of batteries made with graphene, a material that’s light, strong, conductive — and elusive.

By Eric Wesoff . 25 September 2023
Long-duration energy storage

Long-duration storage gets big boost with $325M from DOE

The department selected nine proposals with the goal of accelerating the adoption of emerging technologies, which could be key to cleaning up the grid.

By Julian Spector . 22 September 2023
Nuclear

Nuclear startup Oklo looks to rebound with backing from Sam Altman

The microreactor pioneer has a SPAC deal, signed customers and potential sources for its specialized fuel. Now it needs an OK from regulators.

By Eric Wesoff . 8 September 2023
Air travel

‘E-fuels’ are catching on as a way to decarbonize air travel

Massachusetts-based Lydian is the latest startup to raise funds to produce power-to-liquids fuels, which could emit less CO2 overall than fossil jet fuel.

By Maria Gallucci . 6 September 2023
Clean energy manufacturing

DOE offers $15.5 billion to retool existing auto plants for EVs

The Biden administration announced the funding amid auto workers’ concerns that shifting to electric cars could cut jobs from traditional manufacturing hubs.

By Maria Gallucci . 1 September 2023
Long-duration energy storage

Eos wins $400M DOE loan guarantee to build longer-lasting batteries

Long-duration energy storage is a tough business, but it's vital to decarbonizing the grid. Eos thinks its zinc-based batteries are the best candidate for the job.

By Jeff St. John . 31 August 2023
Recycling renewables

Redwood Materials lands $1B to boost its battery recycling efforts

The startup founded by Tesla alum JB Straubel wants to spend $7 billion on recycling to supply a U.S. battery industry now dependent on China.

By Jeff St. John . 30 August 2023