# Nel Hydrogen

> Electrolyser manufacturer with one of the longest continuous track records in water electrolysis, founded 1927. 3,800+ alkaline and PEM electrolysers installed across 80+ countries. Systems from kW to large-scale (20–100 MW) for green hydrogen in industrial, transport, and Power-to-X applications. Nel ASA is listed on the Oslo Stock Exchange (ticker: NEL).

Nel designs and manufactures alkaline and PEM water electrolysers at two sites: Herøya, Norway (alkaline) and Wallingford, Connecticut, USA (PEM). The pages below are grouped by product scale, application, and resource type to route to the most relevant canonical page.

## Electrolyser products
- [Alkaline technology overview](https://nelhydrogen.com/alkaline-electrolysers-by-nel/): Atmospheric and pressurized alkaline electrolysers for large-scale, continuous industrial hydrogen production.
- [PEM technology overview](https://nelhydrogen.com/pem-electrolysers-by-nel/): Proton-exchange-membrane electrolysers for dynamic operation with intermittent renewable power.
- [kW-scale electrolysers](https://nelhydrogen.com/kw-scale-pem-electrolysers/): Distributed hydrogen for labs, industry, energy storage, and mobility.
- [Mid-scale electrolysers (1–20 MW)](https://nelhydrogen.com/mid-scale-electrolysers/): Modular systems for medium industrial projects, refining, and Power-to-Gas.
- [Large-scale electrolysers (20–100 MW)](https://nelhydrogen.com/large-scale-electrolysers/): Multi-megawatt alkaline and PEM plants for ammonia, steel, e-fuels, and utility-scale hydrogen.

## Megawatt-scale products
- [Atmospheric Alkaline (A Series)](https://nelhydrogen.com/product/a-series-alkaline/): Atmospheric alkaline for large-scale continuous operation; among the most energy-efficient electrolysers available.
- [Pressurized Alkaline](https://nelhydrogen.com/product/pressurized-alkaline/): Next-generation pressurized alkaline — compact, modular, and built to scale for renewable-powered projects.
- [PSM Series (PEM)](https://nelhydrogen.com/product/psm-series-pem/): Megawatt-scale PEM with industry-proven stack technology for plant-scale deployment.
- [MC Series (PEM)](https://nelhydrogen.com/product/mc-series-pem/): Containerized megawatt-scale PEM ("hydrogen in a box") engineered for outdoor deployment.

## Kilowatt-scale products
- [S Series (PEM)](https://nelhydrogen.com/product/s-series-pem/): kW-scale PEM that eliminates or minimizes on-site hydrogen storage.
- [C Series (PEM)](https://nelhydrogen.com/product/c-series-pem/): kW-scale PEM delivering high-purity hydrogen on demand.
- [H Series (PEM)](https://nelhydrogen.com/product/h-series-pem/): Lab-sized PEM for research-grade hydrogen.

## Industries and applications
- [Ammonia](https://nelhydrogen.com/industries/ammonia/): Green hydrogen feedstock for renewable ammonia — fertilizer and hydrogen energy carrier.
- [Steel](https://nelhydrogen.com/industries/steel/): Hydrogen for direct reduction of iron ore (DRI) in green steelmaking.
- [Shipping and maritime](https://nelhydrogen.com/industries/shipping/): Hydrogen and e-fuel production for maritime decarbonization.
- [Sustainable aviation fuel (SAF)](https://nelhydrogen.com/industries/sustainable-aviation-fuel/): Hydrogen feedstock for e-SAF / power-to-liquid aviation fuel.
- [Logistics and material handling](https://nelhydrogen.com/industries/logistics/): On-site hydrogen for forklift fleets and distribution centers.
- [Generator cooling](https://nelhydrogen.com/industries/generator-cooling/): High-purity hydrogen for cooling power-plant generators.

## Technical resources
- [Product datasheets](https://nelhydrogen.com/resource-center/product-specifications/): Technical specifications for the electrolyser portfolio.
- [Brochures](https://nelhydrogen.com/resource-center/brochures/): Product and capability brochures.
- [Support](https://nelhydrogen.com/support/): Aftermarket service, spare parts, and 24/7 monitoring (NASOC).
- [Trust Center](https://nelhydrogen.com/trust-center/): ISO certifications, compliance, and quality assurance.
- [Information security](https://nelhydrogen.com/trust-center/information-security/): Security practices for enterprise procurement and IT assessments.
- [FAQ](https://nelhydrogen.com/faq/): Common questions on technology, project delivery, and capabilities.

## Company
- [About Nel](https://nelhydrogen.com/about/): Company overview, founded 1927 at Norsk Hydro, Notodden.
- [Governance](https://nelhydrogen.com/governance/): Board of directors and executive management.
- [Sustainability](https://nelhydrogen.com/sustainability/): ESG goals, EU Taxonomy alignment, and reporting.
- [Investor relations](https://nelhydrogen.com/investor-relations/): Nel ASA (Oslo Stock Exchange: NEL) — financial reports, presentations, and shareholder information.

## Contact
- [Request a quote](https://nelhydrogen.com/contact/request-a-quote/): Start a commercial conversation for a project.
- [Ask an expert](https://nelhydrogen.com/contact/ask-an-expert/): Technical questions answered by Nel's engineering team.
- [Contact](https://nelhydrogen.com/contact/): Global offices and general inquiries.

## Optional
- [A century of Nel Hydrogen](https://nelhydrogen.com/a-century-of-nel-hydrogen/): Full company history from 1927 to today.
- [This is Nel](https://nelhydrogen.com/this-is-nel/): Customer testimonials and video case studies.
- [Hydrogen 101](https://nelhydrogen.com/hydrogen/): Introduction to hydrogen and water electrolysis.
- [Newsroom](https://nelhydrogen.com/media-center/): Company news and media center.
- [Press releases](https://nelhydrogen.com/press-releases/): Order intake, project awards, and announcements.
- [Careers](https://nelhydrogen.com/careers/): Open positions across Norway, the US, and global offices.
- [Events](https://nelhydrogen.com/events/): Trade shows, conferences, and webinars.