GreenH takes FID on Slagen project, Nel to supply electrolysers
By on February 25, 2026
100,000 tons ammonia per year, based on Norwegian hydropower
Click to learn more. GreenH has taken FID on its Slagen project, featuring renewable hydrogen and ammonia production for marine fuel consumers. Source: GreenH.
Launched in 2022 as a collaboration between Esso Norge (ExxonMobil), Grieg Edge, North Ammonia, and GreenH, the projects aims to convert and retrofit Esso Norge’s existing terminal at Slagentangen, outside Tønsberg, into a production & distribution hub for renewable ammonia and hydrogen maritime fuels. Slagentangen is strategically located at the entry to the inner Oslofjord, has decades of industrial history, and has large areas available for further development. In November 2025, GreenH took a final investment decision on the Slagentangen project, as well as other electrolytic hydrogen projects in Bodø and Kristiansund. Funding from Norwegian government agency Enova assisted FID decisions for this portfolio of projects.
Producing renewable hydrogen via electrolysis and Norwegian hydropower, up to 20,000 tons of hydrogen and 100,000 tons of ammonia will be produced each year by 2027, with direct bunkering to be offered in Slagen. GreenH intends to reduce the cost of these new marine fuels by producing them close to consumers.
Hydrogen is a fuel for the future. With the projects in Bodø, Kristiansund and Slagentangen, we are taking an important step towards establishing a green infrastructure along the Norwegian coast, facilitating the reduction of emissions from maritime transport and local industry. This is thanks to solid support from Enova.
Morten Solberg Watle, CEO of GreenH, in his organisation’s official press release, 7 Nov 2025
Nel: supplying electrolysers for a growing Nordic ecosystem
Just after announcing FID, Nel ASA was chosen to supply electrolyser technologies for GreenH’s Kristiansund and Slagentangen projects. Nel will be responsible for delivery of electrolyser equipment, engineering and technical support, with the full scope and size of the projects to be confirmed later.
Two more Enova-funded electrolytic hydrogen projects – Kaupanes Hydrogen AS and HyFuel AS – also picked Nel to supply electrolysers for their respective projects in November last year. Together, Kaupanes and HyFuel ordered 40 MW of electrolysers based on Nel’s MC 500 containerized PEM system. The $50 million combined order was Nel’s second largest ever, and its largest-ever order for PEM equipment. The PEM electrolysers will be built at Nel’s Wallingford factory, with deliveries to start later this year.
We are pleased to support GreenH in developing regional hydrogen infrastructure in Norway, and we look forward to working together as they move forward.
Håkon Volldal, CEO and President of Nel ASA, in his organisation’s official press release, 10 Nov 2025
Click to learn more. Nel has taken FID on 1 GW of production capacity for its new “Next Generation Pressurized Alkaline system”. Source: Nel ASA.
Last year also saw Nel take FID on a 1 GW production line for a new “Next Generation Pressurized Alkaline system”, to be added to its existing electrolyser production facility in Herøya, Norway (which already features twin 500 MW capacity, atmospheric alkaline electrolyser production lines). Full-scale testing of a system prototype has been completed at Herøya, and the production line is expected to be operational “at scale” in 2027. An overall €135 million EU Innovation Fund grant covers up to 60% of relevant CAPEX and operational costs related to industrialization of the new system, with up to 4 GW of total production capacity envisioned. Nel’s FID (approx. €18 million) unlocks the first portion of this EU grant.
Our new solution is extremely important for Nel as a company, but also for the clean hydrogen industry as a whole. A significantly improved levelized cost of hydrogen is expected to unlock business cases that were previously not viable without significant subsidies.
Håkon Volldal, President and CEO of Nel ASA, in his organisation’s official press release, 10 Nov 2025
The platform is based on a fully modularized, skid-based design where every module is pre-fabricated and factory-tested before shipment in standard container skids. This approach dramatically simplifies engineering, logistics, and installation and is expected to transform complex projects into streamlined product deliveries. The system is designed to operate reliably outdoors, where costs and deployment complexity are further reduced as no dedicated building construction is required.
Details of the new “Next Generation Pressurized Alkaline system”, in Nel’s official press release, 10 Nov 2025