UK energy regulator Ofgem has published guidance outlining how developers and asset owners can add storage to their subsidised solar installations without losing accreditation to the Renewables Obligation (RO) and Feed-in Tariff (FiT).

Electricity and heat generator and retailer Vattenfall is developing a third party model for energy storage deployment, which will see the Swedish firm deploy batteries alongside UK solar farms.

UK-based renewables developer Anesco says the inclusion of battery storage has been central to the economic viability of the country’s first subsidy-free solar farm, a 10MW site the company has just unveiled in the east of England.

UK gas and electricity market regulator Ofgem has made a “game changer” decision for UK energy storage, by confirming that solar farms are able to retain accreditation under the government Renewables Obligation (RO) when supplying electricity to batteries.