World’s first continuous green hydrogen

The European Marine Energy Centre (EMEC) will deploy an Invinity Energy Systems 1.8 MWh flow battery at its tidal energy test site in Scotland in a world-first project to combine flow battery technology with tidal power to produce continuous green hydrogen.

The commercialisation of ‘green’ hydrogen, created and consumed without carbon emissions, has been increasingly cited as a means to help replace fossil fuels in the energy mix. The Offshore Renewable Energy Catapult estimates that developing a green hydrogen industry could create 120,000 jobs and deliver £320bn to the UK economy by 2050.

Invinity’s vanadium flow batteries (VFBs) are a form of heavy duty, stationary energy storage which are deployed in high-utilisation, industrial applications. They provide hours of continuous power, one or more times per day, through decades of service. This makes them the perfect candidate for regulating the generation of tidal energy, an application where more conventional lithium-ion batteries would degrade and eventually wear out.

Neil Kermode, MD at EMEC, said: “EMEC’s core purpose is to demonstrate technologies in new and inspired ways to decarbonise our energy system. This is the first time that a flow battery will have been coupled with tidal energy and hydrogen production, and will support the development of the innovative energy storage solution being developed in the Interreg NWE ITEG project.”

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