Report Highlights

Electrolysers in the United States: Market Overview

The U.S. electrolyser market was valued at USD 0.61 billion in 2024 and is forecast to reach USD 2.50 billion by 2032, a compound annual growth rate of 19.3%. Demand concentrates in green hydrogen projects funded through federal tax credits and Department of Energy hub programmes, while installed capacity remains well under 1 GW. The market is fragmented, with alkaline, proton exchange membrane (PEM) and solid oxide systems competing for distinct offtake profiles.

Government has been the dominant force in shaping demand, because the Inflation Reduction Act of 2022 and the Infrastructure Investment and Jobs Act set the production economics that developers use to justify electrolysis. Private industry leads in the established base of merchant hydrogen, where Air Liquide and Air Products have operated grey hydrogen assets for decades. Policy therefore drives the growth segment, while incumbent industrial gas demand provides the private-sector foundation.

Policy-Driven Growth in US Electrolysers

Section 45V of the Internal Revenue Code, created by the Inflation Reduction Act of 2022 (Public Law 117-169), pays up to USD 3.00 per kilogram of clean hydrogen, with tiers scaled to lifecycle emissions at or below 0.45 kg CO2e per kg. The Treasury Department and IRS administer the credit, while the Department of Energy's 45VH2-GREET model certifies emissions intensity. The per-kilogram offset narrows the cost gap between electrolytic and grey hydrogen, improving project returns for developers.

The Infrastructure Investment and Jobs Act (Public Law 117-58) allocates USD 8 billion to Regional Clean Hydrogen Hubs and USD 1 billion to a clean hydrogen electrolysis programme, both managed by DOE's Office of Clean Energy Demonstrations. In October 2023 DOE selected seven hubs, including ARCH2 in Appalachia, HyVelocity on the Gulf Coast and ARCHES in California, converting grant capital into anchor offtake. California's Low Carbon Fuel Standard, administered by the California Air Resources Board, adds credit revenue for low-carbon hydrogen used in transport.

Regulatory Barriers and Compliance Costs for Electrolysers

Grid connection is the most binding delay. Interconnection requests fall under FERC Order No. 2023, and state utility commissions set study timelines that frequently exceed a year for large loads. Projects funded by DOE also undergo National Environmental Policy Act review, which adds a separate approval track. Electrolysers using PEM membranes face EPA reporting under the TSCA Section 8(a)(7) PFAS rule, because fluorinated ionomers create documentation costs for importers.

Safety codes impose siting costs. NFPA 2, the Hydrogen Technologies Code, and OSHA's hydrogen standard at 29 CFR 1910.103 require setbacks, ventilation and leak detection, enforced by state fire marshals and local authorities having jurisdiction. Local content rules under the Build America, Buy America Act, administered by the Office of Management and Budget and federal awarding agencies, require 55% domestic component cost in 2024, rising to 65% in 2026 and 75% by 2029, which raises stack costs for importers.

Policy-Created Opportunities in the United States

Hub offtake creates the first procurement window. ARCH2 and HyVelocity require long-term supply of electrolysed hydrogen for refinery and ammonia users, generating demand for stacks and balance-of-plant contracts. Developers with contracted domestic stack supply can meet hub milestone schedules, giving electrolyser vendors a procurement window through 2027.

Refinery and fuels decarbonisation offers a second window. The 45Z Clean Fuel Production Credit, extended through 2029 by the 2025 reconciliation law, rewards lower-carbon fuel production, including hydrogen used in refining. Combined with California Low Carbon Fuel Standard credits, refineries in Texas and California can justify electrolysers that displace steam methane reforming output.

Market at a Glance

Leading Market Participants

• Plug Power
• Nel ASA
• Electric Hydrogen
• Ohmium
• Sunfire
• thyssenkrupp nucera
• Siemens Energy
• Bloom Energy
• Air Liquide
• Air Products

Regulatory and Policy Environment

The primary legislation is the Inflation Reduction Act of 2022 (Public Law 117-169), supported by the Infrastructure Investment and Jobs Act (Public Law 117-58). The Treasury Department and IRS administer Section 45V, requiring certified lifecycle emissions data through the 45VH2-GREET model. DOE's Office of Clean Energy Demonstrations and Hydrogen and Fuel Cell Technologies Office administer hub funding, with reporting milestones tied to each award agreement. Federal compliance also requires FERC interconnection filings and Build America, Buy America certification for federally funded equipment.

The 2025 reconciliation law moved the 45V construction-start deadline to 31 December 2027, while Buy America domestic content thresholds rise to 65% in 2026 and 75% in 2029. Compared with regional peers, the U.S. relies on production tax credits, whereas the EU Renewable Energy Directive III mandates 42% renewable fuels of non-biological origin in industrial hydrogen by 2030. Canada's Clean Hydrogen Investment Tax Credit offers 15% to 40% capital support, positioning the U.S. credit as more production-linked but time-limited.

Long-Term Policy Outlook for Electrolysers in the United States

By 2032 the 45V construction deadline will have passed, shifting the market from credit-led project starts to operating economics. Projects that began construction before 2028 will operate under the credit for ten years, so stack replacement and merchant offtake will determine returns thereafter. Hub funding will consolidate around the projects that reach commercial operation by the late 2020s.

Buy America thresholds reaching 75% by 2029 will localise stack manufacturing, favouring vendors with U.S. assembly lines in New York, Connecticut and Massachusetts. Regulatory attention will shift toward PFAS restrictions affecting PEM membranes, requiring alternative ionomer chemistries. Vendors that certify domestic content and PFAS-compliant designs early will hold the leading position in federally backed projects after 2027.