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Nel’s on-site hydrogen generators are the safer, smarter choice for power plants using hydrogen-cooled generators. Switch from delivered hydrogen to efficient, reliable on-site generation.

Learn about our solutions

Power plants face an operational inflection point.

Thousands of power plants already rely on hydrogen to cool their generators – but most still depend on cylinder or tube trailer deliveries.

This introduces safety risks, ongoing delivery costs, and logistical complexity. As plants modernise and regulations tighten, operators must adopt smarter, safer, and more cost-effective hydrogen supply systems.

Based on U.S. DOE Hydrogen Delivery Roadmap and NREL H2A Electrolysis Model, 2020–2023.

The future of generator cooling isn’t delivered.

It’s made on-site.

Our H-Series on-site hydrogen generators are built for generator cooling applications.

  • Specifically designed for generator cooling: Compact, robust PEM electrolysers engineered for power plant environments.
  • Reliable in demanding conditions: Built to operate continuously in industrial settings with minimal maintenance.
  • Eliminate delivery risks: On-site hydrogen production removes the need for delivered gas, reducing safety hazards and supply interruptions.
  • Lower total cost of ownership: Cut long-term costs compared to bulk cylinder supply or trailer deliveries.

Proven technology. Trusted partner.

With almost a century of hydrogen expertise, Nel has supported critical applications across energy, defence, and industry – including nuclear submarines and utility-scale power stations. Our systems are trusted where uptime, reliability, and safety are non-negotiable.

On-site hydrogen generation has already helped power plants eliminate the risks of hydrogen deliveries, reduce costs, and ensure uninterrupted generator cooling. Worldwide, operators are switching to on-site H₂ with measurable results.

New York Power Authority

NYPA completed a 2023–24 replacement of its Nel H-Series electrolyser, ensuring continued on-site hydrogen availability with upgraded reliability and maintainability.

American Electric Power

At AEP’s Clinch River plant in Virginia, on-site PEM electrolysis from Nel cuts out regular hydrogen deliveries and supports uptime.

Consumers Energy

Zeeland’s on-site Nel H-Series cut delivered-hydrogen cost per unit by ~87% versus cylinders, illustrating the cost and uptime benefits of on-site generation.

At Nel, we believe that the future belongs to the front-runners.

Are you ready to optimize your generator cooling?