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36 min ago 2 min read
Denmark-based Stiesdal Hydrogen has launched a 6.5MW pressurised alkaline electrolyser plant with a capex below €500/kW ($582), significantly undercutting European competitors.
The subsidiary of renewable technologies firm Stiesdal said the outdoor-rated modular plant had been developed on the basis of its current 3.1MW platform, which has seen deployment at European Energy’s small-scale project in Denmark.
The company claims the new plant, which is over double the capacity, accommodates around the same footprint to deliver system capex of under €500/kW. It’s unclear whether the plant includes water purification and other balance of plant equipment.
“With this boost, we halved the price per megawatt compared to the current European market average,” said Stiesdal Hydrogen’s head of sales, Esben Baltzar Nielsen. “Per megawatt, operation and maintenance costs are reduced by approximately 50% compared to the 3.1MW platform.”
This is significantly cheaper than the other publicly announced European electrolyser prices.
Earlier this month, Nel launched its new pressurised alkaline system with a capex of $1,450/kW at 25MW. UK PEM electrolyser firm ITM Power quotes around $1,166/kW across its systems. Both, however, do include balance of plant systems.
The price puts Stiesdal on par with Chinese manufacturers, who are estimated to produce the technology for around $500/kW.
In addition to the low cost, Stiesdal said the system has an operating range of 15% to 100% of nominal power, with a ramp-up rate of 2% load per second, and a stack lifetime of 60,000 hours over seven years at 100% load.
It comes as electrolyser manufacturers tussle to strengthen their foundations. With slow project progress and growing competition from Chinese firms, various Western OEMs have been seeking to cut cash burn and align capacity with market demand.
