Hydrogen DRI

direct reduced iron · green steel

Hydrogen DRI cuts ironmaking CO2 by about 95%. Most new DRI plants will run on natural gas first, and Stegra's Boden mill is the integrated exception.

CO2 per metric ton of steel: blast furnace and basic oxygen furnace about 1.8 to 2.1 t; natural gas DRI with an electric arc furnace about 1.0 to 1.2 t; scrap EAF about 0.3 to 0.4 t; hydrogen DRI with an EAF about 0.2 to 0.4 t, assuming clean electricity. Status in 2025-26: Stegra's 2.5 Mt Boden plant with 700 MW of electrolyzers is starting in 2026; Cleveland-Cliffs cancelled its Middletown hydrogen DRI project; US Steel announced a gas-based DRI plant in Arkansas. CO2 PER METRIC TON OF STEEL Blast furnace + BOF ~1.8-2.1 t Gas DRI + EAF ~1.0-1.2 t Scrap EAF ~0.3-0.4 t Hydrogen DRI + EAF ~0.2-0.4 t Hydrogen and scrap figures assume clean electricity 2025-26 STATUS Stegra, Boden 2.5 Mt/yr; 700 MW Starting 2026 Cliffs, Middletown Hydrogen DRI Cancelled US Steel, Arkansas Gas DRI Announced
CO2 cut
~95%
H2 per t DRI
~50-55 kg
Stegra
2.5 Mt/yr
Companies tracked
7, 1 Chinese
Hub
Industry

Finding

Hydrogen DRI works; in 2025-26 most projects switched to natural gas and called themselves hydrogen-ready

Direct reduction strips oxygen from iron ore pellets at 800-1,050 °C using a reducing gas instead of coke. With hydrogen as the gas, the byproduct is water, and ironmaking CO2 falls by about 95%; the resulting sponge iron (DRI) or briquettes (HBI) are melted in an electric arc furnace. It is the only proven route to new low-carbon steel when there is not enough scrap.

The obstacle is the hydrogen. A metric ton of DRI needs about 50-55 kg of hydrogen, roughly 2.5-3 MWh of electricity through an electrolyzer, and green hydrogen still costs several times gas-derived hydrogen. In 2025 Cleveland-Cliffs cancelled its $500 million DOE-backed hydrogen DRI project at Middletown, Ohio, and kept its blast furnace; ArcelorMittal dropped hydrogen DRI plans at two German plants. New DRI capacity is being built to run on natural gas first, as at US Steel's Big River site in Arkansas, with hydrogen as a later option.

Stegra's Boden plant in northern Sweden is the integrated exception: a 700 MW thyssenkrupp nucera electrolyzer, a Midrex shaft furnace and two arc furnaces, sized for 2.5 million tons a year and starting in 2026, although it will lean on other reducing gas until its own hydrogen is running. China runs hydrogen-rich shaft furnaces at HBIS Zhangjiakou and Baowu Zhanjiang. Texas already hosts one of the largest DRI plants in the US, the gas-based HBI plant at Portland near Corpus Christi; the state's hydrogen plans are on AustinIO's Texas green hydrogen hub page.

Projects

Hydrogen and DRI steel projects

Hydrogen DRI and DRI projects
ProjectLocationRouteSizeStatus
StegraBoden, SwedenHydrogen DRI + EAF2.5 Mt/yr steel; 700 MW electrolyzerStarting 2026
HYBRIT (SSAB, LKAB, Vattenfall)Luleå and Gällivare, SwedenHydrogen DRIPilot since 2021; demonstration plant plannedPilot
HBISZhangjiakou, ChinaHydrogen-rich shaft furnace1.2 Mt/yr DRIOperating
BaowuZhanjiang, ChinaHydrogen-based shaft furnace1 Mt/yr DRIOperating
Salzgitter SALCOSGermanyDRI + EAFPhase 1 delayedUnder construction
Cleveland-CliffsMiddletown, OhioHydrogen-ready DRIReplaced by blast furnace upgradeCancelled 2025
US SteelOsceola, ArkansasGas DRIAt Big River SteelAnnounced
ArcelorMittal Texas HBIPortland, TexasGas-based HBI~2 Mt/yrOperating

Vendors

DRI technology suppliers

Two shaft-furnace technologies, MIDREX and ENERGIRON, account for most DRI ever built; fluidized-bed hydrogen routes are at pilot scale. Active companies first, then pilots, research groups and companies that exited.

Direct reduction technology suppliers
CompanyProductsHQTechnologyReference sitesStatus
CISDI (China Minmetals)Hydrogen-rich shaft furnacesChinaGas or hydrogen shaft furnaceactive
DanieliENERGIRON plants with TenovaItalyGas or hydrogen shaft furnaceactive
Midrex TechnologiesMIDREX shaft furnaces; MIDREX H2 and FlexUSGas or hydrogen shaft furnaceStegra Boden; ArcelorMittal Texas HBI, Portlandactive: Kobe Steel subsidiary
Paul Wurth (SMS group)DRI plants and electric smelting furnacesLuxembourgDRI and electric smeltersactive
Tenova HYLENERGIRON direct reduction (with Danieli)ItalyGas or hydrogen shaft furnaceHBIS Zhangjiakou hydrogen DRIactive
MetsoCircored fluidized-bed hydrogen reductionFinlandFluidized-bed hydrogen reductionpilot
Primetals TechnologiesHYFOR fines-based hydrogen reductionUKFluidized-bed hydrogen reductionpilot

Sources

Sources and scope

Scope
Hydrogen DRI for Steel
Sources
Stegra; Hydrogen Insight via Hydronews; Steel Orbis and GMK Center on Cleveland-Cliffs (2025-26); Fastmarkets and RMI; Midrex
Updated
October 2026