Batteries installed in 100 homes as part of local energy trial

The £19 million Local Energy Market trial has been developed to support the stability of Cornwall’s grid, which is increasingly constrained due to the high penetration of renewables in the county.

Delivered by Centrica’s Distributed Energy and Power business, Centrica Business Solutions, 100 homes across the county have had smart batteries and monitoring equipment installed, as well as solar PV where this was not already in place (60 homes).

Powered by the solar panels, the energy in these batteries will now be aggregated and controlled remotely to provide a single block of power and flexibility  to the local grid, making it the largest working example of a domestic Virtual Power Plant in the UK.

Working with partners from the University of Exeter, Imperial College, Western Power Distribution and National Grid, Centrica has developed an online virtual marketplace that will allow the owners of flexible demand and generation capacity to sell their flexibility.

Mark Futyan, distributed power systems director for Centrica, said: “This is the first project in the world to adopt a market-based approach to local grid services, providing Western Power Distribution and National Grid with a route to buy flexibility at the local level, while managing any conflicts between local and national needs. The new marketplace can play a vital role in supporting decarbonisation, by bringing forward much needed flexibility to balance out intermittent renewable generation.

“With these 100 homes on board, we can now demonstrate the residential Virtual Power Plant concept and start to test the true potential of the local energy marketplace.”

The households have been given free storage and low carbon generation technologies that will allow them to take control of their energy usage and reduce their bills. Any energy that is not used in the home will be made available to the local distribution network operator and National Grid, maximising the value of the assets, increasing supply, and reducing demand during peak times.

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