Hallen BESS is a lithium-ion battery storage power plant comprising 16 modules with a 2 megawatt-hour unit capacity each. The modules will be stacked on site to optimize the surface used.

The project is located near the city of Bristol in the Avonmouth area. Hallen BESS will operate across all markets, providing frequency, balancing and other ancillary services to the national and local grid network.

The commissioning is scheduled for the first quarter of 2022. The project amounts to an investment of around 15 million GBP and is not yet backed by long-term contracts.

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