Enapter AG Unveils “Stack 250”, Expanding Its Reach into the 100 MW Hydrogen Market

Enapter AG (ISIN DE000A255G02), the German modular electrolyzer developer headquartered in Berlin, announced the launch of its latest generation of AEM‑based stacks, the Stack 250. The new platform is designed to operate in the multi‑megawatt range, enabling the production of approximately 100 kg of high‑purity hydrogen per day—an order of magnitude greater than its earlier offerings.

Technical Highlights

  • Capacity – The Stack 250 can be assembled into electrolysers with capacities of 100 MW and beyond.
  • Output – Tenfold increase over previous models, delivering around 100 kg of hydrogen daily.
  • Modularity – The design facilitates scalability, allowing incremental expansion to meet future demand.
  • Hybrid Compatibility – Fully compatible with existing alkaline electrolyzer systems, permitting the creation of highly efficient hybrid hydrogen plants.

Market Implications

The introduction of the Stack 250 positions Enapter to serve high‑volume industrial customers in sectors that are actively seeking green hydrogen solutions, including:

  • Steel production – Large‑scale hydrogen can replace fossil‑based reducing agents.
  • Cement manufacturing – Hydrogen offers a low‑carbon alternative for high‑temperature processes.
  • Ammonia production – Green hydrogen can power the Haber‑Bosch cycle with reduced emissions.
  • Aluminium production – Hydrogen can replace carbon‑intensive processes in electrolytic aluminium smelting.

By penetrating these markets, Enapter extends its reach beyond the modular 10‑MW segment, where it has already established a strong presence. The company’s patented AEM technology, coupled with the Stack 250’s scalability, is expected to open new revenue streams and broaden its customer base across Europe and beyond.

Financial Snapshot

  • Market Capitalisation – €38.0 million.
  • Stock Performance (Xetra) – Closing price of €1.19 on 7 May 2026, with a 52‑week low of €1.065 (27 April 2026) and a 52‑week high of €3.09 (31 July 2025).
  • Price‑to‑Earnings Ratio – –1.34, reflecting the company’s investment‑heavy growth phase and its current pre‑profit status.

The release of the Stack 250 underscores Enapter’s strategic intent to lead the transition to a hydrogen‑based industrial economy. As demand for low‑carbon processes accelerates, the company’s scalable, modular solutions are poised to become a critical component of the green energy infrastructure.