United Utilities buys 2MW battery, co-locates with solar, plans flex trades


United Utilities has ordered a 2MW battery storage system from Zenobe. Believed to be the biggest yet in the UK water industry, the utility will deploy the battery to support PV at its Clifton Marsh treatment plant near Preston.

Targeted for full operation in late May, the battery will enable United to trade in flexibility services to the grid.

Steve Slavin, United Utilities’ head of renewables said the battery enabled the firm to maximise its value of on-site generation, adding predictability and stability to energy costs.

Last week Zenobe announced £25 million of new equity from two Japanese power majors, Jera and Tepco (Tokyo Electric Power Company). The latter, Japan’s biggest utility, is perhaps best known outside of its home country for its operation of the Fukushima Daiichi nuclear plant. The pair’s stake added to £45 million Zenobe has raised already from investors since late 2018.

Zenobe claims it has some 73MW operating assets, and a 25 per cent marketshare of the UK’s EV bus charging sector.

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