Ohmium raises $250mn to fund capacity increase
US electrolyser manufacturer secures private equity investment as sector enters period of rapid growth
US electrolyser manufacturer Ohmium has raised $250mn in private equity financing, highlighting investors’ appetite for a sector that is undergoing rapid growth as the pipeline of green hydrogen projects swells. Ohmium, which specialises in modular proton-exchange-membrane (PEM) electrolyser systems, will use the funds to support the expansion of its production capacity to 2GW/yr and to accelerate its R&D programmes. “Ohmium is experiencing tremendous success in 2023. We are on track to deliver our PEM electrolyser systems to customers worldwide operating across multiple sectors,” says Arne Ballantine, CEO of Ohmium. “This capital raise is a validation of Ohmium’s strategy and technology
Also in this section
4 February 2026
Europe’s largest electrolyser manufacturers are losing patience with policymakers as sluggish growth in the green hydrogen sector undermines their decision to expand production capacity
2 February 2026
As a fertiliser feedstock, it is indispensable, but ammonia’s potential as a carbon-free energy carrier is also making it central to global decarbonisation strategies
28 January 2026
The development of hydrogen’s distribution system must speed up if the industry is to stand any chance of grabbing a meaningful slice of the low-carbon energy market
14 January 2026
Continent’s governments must seize the green hydrogen opportunity by refining policies and ramping up the development of supply chains and infrastructure






