Stegra—the Swedish green steel company formerly known as H2 Green Steel—is advancing plans for a €2.7 billion hydrogen-powered steel production facility in Sines, Portugal, in what would become the single largest Nordic industrial investment ever made on Portuguese soil. The project, which has secured site selection and land reservation at the Sines industrial complex, would use renewable hydrogen to produce green steel with dramatically reduced carbon emissions, positioning Portugal as a critical node in Europe’s emerging decarbonised heavy industry supply chain.
The Sines project represents Stegra’s first major international expansion outside Sweden. The company’s flagship facility in Boden, northern Sweden, secured €6.5 billion in funding and is on track for commissioning in 2026, with an initial annual capacity of 2.4 million tonnes of green steel. Portugal is the most advanced of Stegra’s international expansion sites, with Canada and Brazil also under evaluation. Company executives have described the Portuguese project as being at a stage comparable to “where we were in 2020 in Sweden”—early but committed, with site selection complete and power allocation discussions underway with Portuguese authorities.
Sines offers a near-ideal combination of factors for hydrogen-intensive heavy industry. Portugal’s renewable energy surplus—the country generated 80.7% of its electricity from renewable sources in January 2026—provides the clean power essential for green hydrogen production via electrolysis. The deep-water port at Sines handles over 40% of Portugal’s maritime trade and offers direct shipping access to European, African, and American markets. The existing industrial ecosystem at Sines already includes Galp’s refinery, Start Campus’s massive data centre development backed by Norwegian-funded Nscale, and the planned Madoqua Ventures hydrogen and ammonia project supported by Copenhagen Infrastructure Partners. Adding a green steel plant would consolidate Sines as Southern Europe’s premier industrial-energy hub.
The technology behind Stegra’s process is fundamentally different from conventional steelmaking. Traditional blast furnaces use coal-derived coke to reduce iron ore, generating approximately 1.8 tonnes of CO2 per tonne of steel—making steel production responsible for roughly 7–8% of global carbon emissions. Stegra’s direct reduction process replaces coal with green hydrogen as the reducing agent, producing water vapour instead of CO2. When powered entirely by renewable electricity, the process can reduce emissions by up to 95% compared to conventional methods. In Portugal, where renewable energy penetration is among the highest in Europe and wholesale electricity prices are increasingly competitive, the economics of hydrogen-based steelmaking are more favourable than in most other European locations.
The Portuguese government has signalled strong support for the project. Stegra’s Sines investment aligns directly with Portugal’s National Hydrogen Strategy, which targets 2–2.5 GW of electrolyser capacity by 2030 and positions Portugal as a green hydrogen production and export hub for Northern Europe. The H2Med pipeline—currently entering construction phase to connect Iberian hydrogen production to France, Germany, and eventually Northern European markets—would create a physical corridor for Portuguese-produced hydrogen to reach Nordic and Central European industrial consumers. For Stegra, producing steel in Portugal rather than Sweden offers geographic diversification, access to Southern European construction and automotive markets, and proximity to the growing African infrastructure market where steel demand is accelerating rapidly.
The investment would generate substantial employment in the Alentejo Litoral region, which has historically depended on the Sines petrochemical complex and port operations. Stegra’s Boden facility is expected to create approximately 1,500 direct jobs and several thousand indirect positions. A comparable Portuguese facility would represent one of the largest single-site industrial employers in southern Portugal, with high-value positions in process engineering, hydrogen systems, metallurgy, and logistics. The Portuguese metalworkers’ unions and the Sines municipal authority have publicly welcomed the project as a transformative investment for a region that faces structural economic transition as fossil fuel refining declines.
For the broader Nordic-Iberian corridor, Stegra’s Sines project represents a qualitative shift in the nature of Nordic investment in Portugal. Previous waves of Nordic FDI concentrated in services (Securitas, ISS), retail (IKEA, H&M, JYSK), mining (Boliden), and real estate (Sagax). Stegra’s investment would be the first major Nordic greenfield heavy industry project in Portugal—a signal that the corridor is maturing from commercial market entry into deep industrial integration. The project also demonstrates the strategic logic of combining Nordic capital and green technology with Portuguese renewable energy and industrial infrastructure—a formula that Copenhagen Infrastructure Partners pioneered with its €2.8 billion clean energy investment at Sines and that is now being replicated across sectors.
Stegra has already attracted a marquee investor base that includes Vargas Holding, Cristina Stenbeck’s investment vehicle, alongside institutional investors including pension funds and development finance institutions. The company raised its profile further in 2024 by rebranding from H2 Green Steel to Stegra to reflect its broader ambition beyond steel alone, encompassing hydrogen production, energy storage, and industrial decarbonisation services. The Portuguese project, if it proceeds to financial close, would likely require a comparable funding structure to Boden—combining project finance, EU green transition funding (potentially through the Innovation Fund or InvestEU), and Portuguese government incentives under the country’s Tax Incentive for Scientific Research and Innovation (SIFIDE) and Investment Tax Credit (RFAI) frameworks.
The timeline remains measured. Stegra executives have indicated that the Portuguese facility is several years behind the Boden plant in development terms, with environmental impact assessment, detailed engineering, and financing milestones still ahead. A realistic operational date would fall in the 2030–2032 window, contingent on power grid upgrades, electrolyser procurement, and regulatory approvals. But the strategic commitment is clear: Sines is Stegra’s chosen location for its first plant outside the Nordics, and the Nordic-Iberian energy and industrial corridor now has its most ambitious project yet on the horizon.