Bigger is sometimes better: demonstrating hydrogen steelmaking at scale

This working paper analyzes the demonstration phase of the HYBRIT project, which aims to decarbonize the steel industry using a hydrogen direct reduction (HD-R) process. The authors compare small-scale pilot plants with large-scale demonstration plants, concluding that larger plants are more effective for securing financing, permitting, and business models, despite higher regulatory risks.

• The steel industry is a significant contributor to climate change, accounting for approximately 7% of global CO2 emissions. The HYBRIT (Hydrogen Breakthrough Ironmaking Technology) project aims to address this by commercializing a fossil fuel-free steel supply chain using a hydrogen direct reduction (HD-R) process.
• When comparing a 'small' pilot plant (200,000 metric tons per annum and 80 MW electrolysis capacity) to a 'large' plant (800,000 t/annum and 320 MW electrolysis capacity), the authors argue that the larger scale is preferable. Large plants are more likely to secure necessary collaboration with society and authorities regarding business models, financing, and permitting, while providing better signaling and marketing advantages.
• Large-scale demonstration plants face substantial regulatory risks that could act as bottlenecks. Specifically, the authors highlight potential delays in permitting processes in Sweden related to industrial sites and the expansion of power transmission capacity required for hydrogen production.
• The HYBRIT consortium, consisting of SSAB, LKAB, and Vattenfall, announced in June 2020 plans to construct an industrial-scale demonstration plant in Norrbotten, Sweden, with a capacity exceeding one million metric tons of iron per year.
• Demonstration plants are viewed as critical tools for bridging the 'valley of death'—the gap between lab-scale development and commercial implementation—particularly for capital-intensive heavy industries like petrochemicals, cement production, and metals processing.

APA

Stockholm Environment Institute (2020). Bigger is sometimes better: demonstrating hydrogen steelmaking at scale. https://www.sei.org/publications/bigger-is-sometimes-better-demonstrating-hydrogen-steelmaking-at-scale

Chicago

Stockholm Environment Institute. Bigger is sometimes better: demonstrating hydrogen steelmaking at scale. 2020. https://www.sei.org/publications/bigger-is-sometimes-better-demonstrating-hydrogen-steelmaking-at-scale.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=Bigger is sometimes better: demonstrating hydrogen steelmaking at scale |date=10 July 2020 |url=https://www.sei.org/publications/bigger-is-sometimes-better-demonstrating-hydrogen-steelmaking-at-scale |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitute2020bigger, author = {{Stockholm Environment Institute}}, title = {{Bigger is sometimes better: demonstrating hydrogen steelmaking at scale}}, institution = {Stockholm Environment Institute}, year = {2020}, month = jul, url = {https://www.sei.org/publications/bigger-is-sometimes-better-demonstrating-hydrogen-steelmaking-at-scale}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }