Hydrogen

San Francisco launched a hydrogen ferry. Now NYC may get one too.

After a successful run in California, the company behind the world’s first commercial hydrogen ferry is bringing clean, quiet marine transit to New York.

By Maria Gallucci . 3 September 2025

A boat that says "SF Bay Ferry" drives through the water in front of hills and a large bridge. — The hydrogen-powered Sea Change ferry navigates San Francisco Bay in July 2024. (Justin Sullivan/Getty Images)

Green steel

China is winning on renewables. Will it win on green steel, too?

While the U.S. backtracks on green steel commitments, Chinese companies are starting to make iron with hydrogen. One just made its first export deal to Europe.

By Alexander C. Kaufman . 15 August 2025
Hydrogen

This hydrogen microgrid is the first of its kind. Is it a good idea?

Energy Vault, Plug Power, and PG&E partnered on a project that replaces diesel generators with fuel cells to provide backup power for a small town in California.

By Julian Spector . 11 August 2025
Hydrogen

The billion-dollar US green hydrogen boom ended before it ever began

Even before Trump and fellow Republicans began pulling the financial rug out from under the industry, green hydrogen megaprojects were collapsing. Here’s why.

By Julian Spector . 18 June 2025
Clean industry

A new, low-carbon way to make chemicals, without the big, dirty factories

Startup OCOchem has built factory-assembled “artificial photosynthesis” cells to make formate, a widely used chemical now produced with fossil fuels.

By Jeff St. John . 29 May 2025
Hydrogen

Can locally made green ammonia replace fertilizer from fossil fuels?

Startup Talusag says modular plants that make ammonia from green hydrogen could cut carbon and costs from fertilizer supply chains, in America’s heartland and beyond.

By Jeff St. John . 28 May 2025
Hydrogen

These startups turn fossil gas into hydrogen, without all the emissions

Finland's Hycamite and other companies are splitting methane into solid carbon and hydrogen, a potential alternative for the troubled clean hydrogen market.

By Julian Spector . 3 March 2025
Public transit

Ohio transit agency to switch to green hydrogen for fuel cell buses

The Stark Area Regional Transit Authority and Enbridge are planning a hydrogen production facility powered by solar to replace imported fuel made from natural gas.

By Kathiann M. Kowalski . 18 February 2025
Clean industry

Chart: Global clean industry investment fell sharply in 2024

Money to clean up steel, ammonia, chemicals, and other sectors dropped by more than half compared with 2023.

By Maria Gallucci . 14 February 2025
Climatetech finance

DOE finalizes $9.8B in financing for Rivian, Plug Power, Sunwealth, and Ioneer

The Biden administration’s Loan Programs Office has sprinted to issue clean energy loans before Trump’s inauguration. Four more deals closed this week.

By Jeff St. John . 17 January 2025
Hydrogen

Biden’s clean hydrogen tax credits are officially decided — for now

The contentious rules for the Inflation Reduction Act’s hydrogen subsidies have been finalized. But Trump could weaken them — or rewrite the rules entirely.

By Jeff St. John . 8 January 2025