Doosan Fuel Cell supplies main equipment for power-generation fuel cells and provides long-term service agreements (LTSA), with phosphoric acid fuel cells (PAFC) as its flagship product.
Centered on the Iksan plant, it has secured more than 800MW of installed references and annual capacity of about 275MW, and is reviewing further expansion in anticipation of North American demand.
From the second half of 2025 it began mass production of intermediate-temperature solid oxide fuel cells (SOFC), enabling combined solutions with its existing PAFC line, based on an intermediate-temperature stack developed through technology cooperation with the U.K.'s Ceres Power.
Revenue splits into main equipment and services; according to a Sisajournal-e report in July 2026, main-equipment revenue fell 82% from KRW 121.5 billion in the first quarter to KRW 21.5 billion in the second, while service revenue including maintenance was little changed at KRW 22.8 billion versus KRW 23.3 billion.
Domestic customers are developers awarded volumes in the hydrogen power auction market (CHPS); on April 29, 2026 the company signed a KRW 60.8 billion fuel cell system supply contract and a KRW 49.1 billion LTSA with Ansan Green Power.
Overseas, the group uses a division-of-roles structure: Doosan Corporation's U.S. subsidiary HyAxiom oversees R&D, sales, commissioning and LTSA in North America and Europe, while Doosan Fuel Cell uses Iksan as its production base and covers sales and LTSA in Asia.
A newer pillar is component foundry work: SOFC stacks for Reverion will be delivered sequentially through the second half of 2027 for eco-friendly generation facilities in Germany and Europe.
On competition, Eugene Investment & Securities analyst Han Byung-hwa said on September 2, 2026 that Doosan Fuel Cell is the only company globally with a large-capacity PAFC manufacturing line, and expected competition with Bloom Energy to intensify.
Separately, the consolidation of electric and hydrogen bus maker HyAxiom Motors as a wholly owned subsidiary affected 2024 consolidated results.