Largest BESS in the Netherlands online

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Developer-operator SemperPower has brought online its second large-scale BESS in the Netherlands in the space of a month, a 68MWh system, the largest in the country.

The company has energised the 30MW/68MWh ‘Pollux’ battery energy storage system (BESS) project, it announced today (20 December).

Pollux is located on the same site as SemperPower’s Castor BESS, slightly smaller at 30MW/62MWh, which the company announced the start of operations on a month ago.

System integrator Alfen, which is based in the Netherlands, provided the BESS for the Pollux project through a turnkey solution including civil works, electrical integration and automation. Rolls-Royce meanwhile provided the BESS for Castor.

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Alfen also provided the BESS for SemperPower’s first project, a 9.3MW/9.9MWh system commissioned in Terneuzen in 2021.

The transmission system operator (TSO) in the Netherlands TenneT has said the country needs 9GW of new BESS by 2030 but it has lagged behind Belgium and Germany for deployments. A highly congested grid and ‘double-charging’ of BESS projects by treating them as both consumers and producers of electricity are among the main challenges.

Yves Vercammen, sales manager for Alfen, commented: “We’re especially proud that this project includes products from Alfen’s portfolio of integrated solutions, including our TheBattery Elements Energy Storage System, our Altro walk-in substation and even an Eve Double Pro-line EV charging station for site visitors to use.”

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