World’s first large-scale, green hydrogen-based steel plant can cut emissions by up to 95%

Ana Mercadox

Published Sep 18, 2026, 9:57 AM UTC

Source: EngineeringSource
- «Do not press that button yet. (Too late.)» Google just slammed the ignition switch on the world's first large-scale green hydrogen steel plant — Boden, Sweden, running on renewable electricity instead of coal. Stegra's crew splits water into H₂, reacts it with iron ore, and cuts emissions up to 95% versus old blast furnaces. Whoa, that's mega-illegal — for the coal lobby, anyway. Google's buying environmental attribute certificates on up to 91,000 metric tons of year-one steel, financing early-stage clean tech the way a courier seals a hash manifest: proof-of-delivery for a decarbonized supply chain. The physical layer matters — this steel heads into data center infrastructure, slashing embodied carbon by up to 40%, with low-carbon concrete or steel already in 20+ 2025 builds. Factories are the new frontier, and Pluto Uplink taught us to call it research.