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Iberdrola to deploy six co-located BESS totalling 300MWh in Spain with PERTE funding


Utility and independent power producer (IPP) Iberdrola will deploy battery energy storage system (BESS) projects in Spain adding up to 150MW/300MWh, to be co-located with existing PV plants.

The six new BESS projects were amongst 1.9GWh of energy storage projects awarded grant funding in a recent tender called PERTE (Spanish strategic projects for the economic recovery and transition, in English) and will receive a total of €37.5 million (US$41 million) in funding towards their deployment.

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Each 25MW/50MWh lithium-ion system, they will be deployed in the regions of Castilla y León, Extremadura, Castilla La Mancha and Andalusia at existing solar PV plants. The company said the projects would share the same grid interconnection point as the PV plants.

While it didn’t specify, this presumably means the BESS will be primarily shifting solar PV generation into the evening hours when generation tails off but demand on the grid remains relatively high.

Other developers/IPPs with BESS projects that received grant funding from the PERTE tender include Naturgy, Enel Green Power and Fotowatio Renewable Ventures (FRV). provided a detailed look at where winning projects were located within Spain in our coverage of the auction results.

Some 186MWh of the energy storage projects awarded funding are located in the Canary Islands.

Iberdrola didn’t reveal which company would provide the lithium-ion BESS units for the six projects. It has in the past enlisted Spain-headquartered power conversion specialist firm Ingeteam, including for a 20MWh BESS unit at a green hydrogen plant in Ciudad Real, announced in May 2022.’ publisher Solar Media will host the 9th annual Energy Storage Summit EU in London, 20-21 February 2024. This year it is moving to a larger venue, bringing together Europe’s leading investors, policymakers, developers, utilities, energy buyers and service providers all in one place. Visit the official site for more info.

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