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We are pleased to introduce our new 6.5 MW HydroGen Electrolyser. The new unit nearly doubles hydrogen production and brings system CAPEX below €500/kW, approximately half the European market average. The 6.5 MW electrolyser is built on the same proven platform that has been in commercial operation since 2023. “We’ve doubled the production on roughly the same footprint, reducing LCOH through in-creased power on our existing technology. This means fewer units to install, simpler balance of plant, and a faster route from decision to first hydrogen. With this boost we halve the price per MW compared to the current European market average,” says Esben Baltzer Nielsen. Meet Esben and the Stiesdal Hydrogen team at World Hydrogen Summit & Exhibition in Rotterdam this week - Stand 5H90. And read the full story here: https://lnkd.in/eUTjNCCF

CAPEX is only one line in a project budget. Site preparation is another. The 6.5 MW HydroGen Electrolyser occupies 22 m² per MW. It installs outdoors. No process buildings. No HVAC. Minimal ATEX zone. For developers working through site layout, permitting, and balance-of-plant costs, this changes what fits where, and what it costs to put it there. Less civil engineering, fewer permit dependencies, shorter construction timelines. The 6.5 MW delivers double the output of our 3.1 MW platform in a comparable footprint. Same connections, same civil works concept. One unit or fifteen, the site engineering stays the same. All proven and ready to order. ✅ See the 6.5 MV HydroGen Electrolyser here: https://lnkd.in/dGTFgP4F ✅ And our 3.1 MW HydroGen Electrolyser here: https://lnkd.in/d_gAQJFS

Introducing the 6.5 MW HydroGen Electrolyser. 🍀 System price: €3.15–3.3 million for a 6.5 MW electrolyser system. That price changes more than the upfront cost of a project. It changes how you operate it. Many developers assume that an electrolyser needs to run as many hours as possible to be profitable. It's intuitive. But at our CAPEX level, it's wrong. At half the market price, you can operate selectively, running only when electricity is cheap, and still achieve a competitive hydrogen cost. Our 6.5 MW ramps from 15% to 105% load. It goes from standby to full output at 2% power per second, faster than most power markets move. Ramp-down is 50% per second. And with zero degradation from cycling, there's no penalty for turning it off. In a market with volatile power prices, low CAPEX reduces your investment and gives you an operating strategy that high-CAPEX competitors simply cannot access. Each 6.5 MW unit is a self-contained system with four European-made main modules designed exclusively for outdoor installation. By eliminating the need for complex industrial buildings, the system simplifies site preparation and scales linearly. ✅ See the 6.5 MV HydroGen Electrolyser here: https://lnkd.in/dGTFgP4F ✅ And our 3.1 MW HydroGen Electrolyser here: https://lnkd.in/d_gAQJFS

We published our system price at the World Hydrogen Summit 2026 👉🏼 €3.15–3.3 million for a 6.5 MW electrolyser system. Approx. half the European average of ~€1,000/kW on a similar scope, as benchmarked by the European Hydrogen Observatory. Developers making FID decisions deserve actual numbers, not ranges-upon-request. So here they are - with a 24-month warranty and DNV-certified quality systems behind them. If you're planning a green hydrogen plant, you can now model your business case with real figures. The 6.5 MW unit is built on Stiesdal Hydrogen’s commercial 3.1 MW platform. No new technologies, no new chemistries, no new supply chain. The same European Tier-1 partners, the same standardised modules, the same field-proven control system. All proven and ready to order. ✅ See the 6.5 MV HydroGen Electrolyser here: https://lnkd.in/dGTFgP4F ✅ And our 3.1 MW HydroGen Electrolyser here: https://lnkd.in/d_gAQJFS

The HydroGen Electrolyser includes pressurised alkaline stack, MV transformation, power supply unit with active rectifier, cooling systems, pressure vessel with gas and water separation, UPS-backed control system, and all process and electrical interconnections. Delivered prefabricated. Installed outdoors. Commissioned in days, not months. One procurement process. One supplier. One interface. No process buildings. No months of balance-of-plant engineering across multiple vendors. And when the first plant performs, the next one is identical. Scale to 50 MW or 100 MW by adding units, not by redesigning the system.

Our new 6.5 MW HydroGen Electrolyser carries a 60,000-hour stack lifetime, zero degradation, and a 24-month warranty. It's alkaline and operates dynamically to follow solar and wind spot prices. We call it "new", but in reality, the 6.5 MW is not a new technology. It's a proven modular technology platform - operational since 2023. It is our 3.1 MW electrolyser power boosted, not reinvented. Four main modules. Produced by European Tier-1 partners. The latest installation went from delivery to first hydrogen in 16 days. It operates dynamically on fluctuating renewable power. It has done what the spec sheet says it will do. Close to where the electrolyser provides heavy industries with the green hydrogen they need. The price? €3.15–3.3 million for a 6.5 MW electrolyser system. ✅ See the 6.5 MV HydroGen Electrolyser here: https://lnkd.in/dGTFgP4F ✅ And our 3.1 MW HydroGen Electrolyser here: https://lnkd.in/d_gAQJFS