Clean industry

Green steel

The economic case for green steel production at a Michigan steel mill

Cleveland-Cliffs’ Dearborn Works blast furnace is due for relining in 2027. Advocates say now is the time to convert it to new technology powered by clean energy.

By Kari Lydersen . 19 November 2024

Brown factory towers against a blue sky — Blast furnaces at a Michigan steel mill (Tom Szczerbowski/Getty Images)

Clean industry

The world's largest low-carbon steel plant moves closer to completion

H2 Green Steel’s new $1.6 billion investment puts its hydrogen-fueled plant on track to open in 2025, in what would be a first for the hard-to-decarbonize industry.

By Jeff St. John . 8 September 2023
Clean industry

Boston Metal gets big funding boost to make green steel

Steel is a heavily polluting, hard-to-decarbonize and vital industry. The startup’s $262 million in Series C funding will help it tackle that problem.

By Maria Gallucci . 7 September 2023
Clean industry

New California rule will cut carbon from baking Cheetos, chips and more

Commercial food manufacturers use a lot of fossil gas. A first-of-its-kind rule in greater Los Angeles will start to change that in 2027.

By Maria Gallucci . 8 August 2023
Long-duration energy storage

Is Azelio's abrupt bankruptcy a bad omen for long-duration energy storage?

Many say long-duration storage is the energy transition's holy grail, but startups in the space are staring down brutally tough market conditions.

By Eric Wesoff . 3 August 2023
Energy storage

Industrial heat startup Rondo to open world’s largest battery factory

Rondo uses clean energy to heat a special brick made from a centuries-old recipe, then uses the stored heat to help decarbonize energy-intensive industry.

By Julian Spector . 27 June 2023
Heat pumps

Steam made by heat pumps can help clean up industry and manufacturing

Startup AtmosZero wants to make all-electric, high-efficiency heat pumps the technology of choice for industrial heat.

By Jeff St. John . 27 June 2023
Podcast

How will we power all those green factories?

The U.S. is set for an industrial surge thanks to clean energy incentives. Will we have enough renewables to power that industry?

Play

By Stephen Lacey . 26 min . 22 May 2023
Clean industry

An Alabama plant is now churning out low-carbon concrete

CarbonBuilt kicked off production with its novel tech, which it claims can reduce overall CO2 emissions from concrete-making by 70 to 100 percent.

By Maria Gallucci . 18 May 2023
Hydrogen

Go big or start small: Picking the right scale for green hydrogen

Startups Electric Hydrogen and Ohmium are both building gigawatt-scale factories. But the electrolyzers they’re making come in very different sizes.

By Jeff St. John . 4 May 2023
Hydrogen

The great 'green hydrogen' battle

Tens of billions in federal tax credits could build a vital low-carbon hydrogen industry — or increase carbon emissions. We tackle the complexities in a series.

By Jeff St. John . 28 March 2023