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Enabling the industry of tomorrow

By lowering the cost of green hydrogen we help accelerate the decarbonisation of industry and transport.

Alkaline Electrolysers

Modular turn-key systems

Gateway electrolysers are containerised turn-key green hydrogen production systems using alkaline technology. Each 40ft container consumes 1 MW of electricity and produces 200 Nm3/h of hydrogen, pressurised to 30 bar as output. The systems can be ordered with a 12-month lead time and come with an industry-leading performance guarantee.

Electrolyser stacks for system integrators

Our pressurised alkaline stacks are available with a 6-month lead time and come with a 10-year performance guarantee. The stacks come in a wide range of sizes, operate at 32 bar and are customisable for the best product-market fit (Max Efficiency, Balanced, Max Power). We provide engineering support to help you get started.

Contact us for the product sheet.

Large-scale systems

Starbase electrolysers are large-scale skid-mounted systems built around our 5 MW pressurised alkaline stacks. The Starbase series will be launched in March 2023.

Stargate electrolysers are highly suitable for a wide range of applications.


Chemical feedstock

Process heat



Transport fuel

Energy storage

Our electrolysers use cutting-edge alkaline technology that can provide hydrogen at high pressure, helping to save energy and costs. Free of precious metals like iridium and ruthenium, this technology is inherently scalable

We provide our electrolysers at highly competitive prices for the lowest levelized cost of hydrogen.
Mature alkaline technology
High efficiency
Market leading performance guarantee
Full maintenance support
Flexible production based on renewable power
High purity hydrogen (>99.999%)
High pressure (30 bar)

Stargate delivers a Stellar electrolysis stack to Rockfin

Rockfin is a system integrator who will build green hydrogen production systems based on Stargate’s pressurised alkaline stacks

A Gateway system will operate in Tallinn, including waste heat recovery for the district heating network

Full value chain demonstration of green hydrogen production in Tallinn, 5M EUR funded by Estonian Environmental Investment Center

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Each hydrogen project is different and tailored to match client’s needs. Contact us for a consultation with one of our engineers today.

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