Spain

Spain

Siemens Gamesa trials redox flow battery

SPAIN: Siemens Gamesa Renewable Energy is trialling a redox flow battery at its test site in the north-east of the country.

Siemens Gamesa's 2MW La Plana site near Zaragoza
Siemens Gamesa's 2MW La Plana site near Zaragoza

The system is connected to the hybrid controller of the combined wind, solar PV and diesel generation system installed at its La Plana site near Zaragoza.

It also supplements the lithium-ion batteries that have been operational for about two years, the manufacturer stated.

The new 120kW/400kWh redox flow battery system uses vanadium ions to store potential energy. Redox flow batteries take their name from the reduction and oxidation processes that take place when the cells change the state of atoms.

Siemens Gamesa added the La Plana system will be coordinated by a hybrid controller that uses "intelligent algorithms" to keep generators to their technical minimum load and enhance the share of renewables.

Antonio de la Torre, Siemens Gamesa’s chief technology officer, said: "Due to its scalable energy capacity, the vanadium redox battery is a highly promising option to support our advanced technology offers for isolated and grid-connected systems."

The manufacturer has previously launched research and development (R&D) projects testing the potential of converting energy to heat in rock fill and will also build a 194MW wind farm in Australia that incorporates a 20MW/34MWh lithium-ion battery.

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