US startup Eos Energy Storage (Eos) has been commissioned by energy giant GDF Suez to supply a zinc-air battery energy storage system.
The 1MW/6MWh unit, marketed under the brand name Aurora, features a secondary zinc hybrid cathode battery system and is designed for the grid-scale energy storage market.
GDF Suez will install and test the Aurora unit at its research and development facility in Linkebeek, Belgium. The commission marks the next phase in Eos’ pilot demonstration program, after third-party testing with DNV GL.
Eos’ zinc-air battery also features a titanium current collector with ceramic coating and an aqueous, near neutral pH electrolyte that is claimed does not absorb CO2 to prevent clogging. The firm claims that it has achieved more than 2,000 cycles with no performance or physical degradation.
Eos eventually plans to sell the Aurora battery system for $160/kWh.
GDF Suez is joining Eos’ Genesis programme, a collaborative effort designed to optimise, demonstrate and deploy Aurora systems. Other participants include NRG Energy, Con Edison, National Grid, Enel, American Electric Power and Public Service Company of New Mexico.
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