Danish energy company Ørsted will run a feasibility study on the deployment of a 20MW/200MWh energy storage system using Italian startup Energy Dome’s ‘CO2 Battery’ technology.
The two companies announced a memorandum of understanding (MOU) today, signalling the start of a partnership that Energy Dome said aims to use long-duration energy storage to provide baseload renewable energy to Ørsted’s end-use customers.
Ørsted, which is majority owned by the Danish state, is a primarily renewable energy company with the world’s largest portfolio of offshore wind power. It has made small forays into energy storage including a 20MW system that went online in the UK three years ago.
The first project, a ten-hour system, would be built in continental Europe with construction to commence in the second half of 2024. The MOU includes the possibility of deploying systems at multiple Ørsted sites.
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Kieran White, VP Europe Onshore at Ørsted, said: “We consider the CO2 Battery solution to be a really promising alternative for long-duration energy storage. This technology could potentially help us decarbonise electrical grids by making renewable energy dispatchable.”
Energy Dome’s solution, pictured above, uses a thermodynamic cycle to store and dispatch energy with a duration between four and 24 hours. It charges by drawing carbon dioxide from a large atmospheric gasholder and storing it under pressure, and dispatches by evaporating and expanding the gas into a turbine to generate electricity and return it back to the gasholder.
Its 2.5MW/4MWh demonstrator project in Sardinia, Italy, went online in June this year as reported by Energy-Storage.news, which was followed a few weeks later by US$11 million in bridge financing between a Series A and Series B, expected later this year.
Milan-based Energy Dome is also bringing a larger, 20MW/100MWh project to fruition in partnership with utility A2A, using money from its Series A.
