UK T-4 auction clears path for nearly 7 GW of new battery storage by 2028

UK T-4 auction clears path for nearly 7 GW of new battery storage by 2028 Out of 6.9 GW of prequalified battery energy storage systems (BESS), equal to 1.9 GW derated capacity, about 1.8 GW of derated BESS secured 15-year contracts in the UK’s T-4 auction – nearly double last year’s volume. Just a week earlier, the T-1 auction also set a record for BESS procurement. March 14, 2025 Marija Maisch Distributed Storage Energy Storage Energy Storage Markets Markets & Policy Microgrid Minigrid Utility Scale Storage United Kingdom Western Europe Image: Suns Share From ESS News The UK National Energy System Operator (NESO) has released the provisional T-4 Capacity Market Auction results for delivery in 2028-29 which targeted 43.7 GW. The T-4 auction concluded on March 11, and 43.1 GW was procured across 669 units. Existing tech made up around 40 GW, or 81% of the capacity enetering the action, meaning that new build capacity, which can come at a higher price, was needed to close the gap. The auction cleared at a price of GBP 60/kW/year ($84/kW/year), down from last year’s all time high clearing price of GBP 65/kW/year. The procurement exercise came at a cost of around GBP 4 billion, up from the last year’s GBP 3.6 billion. To continue reading, please visit our ESS News website. This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com. Growatt releases all-in-one 8 kWh balcony storage system 11 March 2025 The battery features four MPPTs and can take up to 2,600 W of PV input. It also has an AC nominal output power of 800 W.