The likes of Tesla, BYD and CATL have supplied much of GB's energy storage capacity, while the Chinese are the dominant battery cell providers – to date, no single GB battery manufacturer or system supplier has been involved in any projects of 50MWh or greater, Energy Storage Report lists most prominent GB battery manufacturers aiming to make market inroads.
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There are 14 GW of battery energy storage projects in the latest update to our GB battery pipeline planned to begin commercial operation in Great Britain by the end of 2027. This would take total operating capacity to 18 GW from 4 GW today.
How big will GB battery fleet be by 2026?
The GB battery fleet is predicted to increase to approximately 11GW by the end of 2026, according to energy market data provider Modo Energy. As previously revealed by Energy Storage Report, much of this new capacity will be brought online in regional 'hotspots', such as Yorkshire, Lancashire, Cheshire and Essex.
Which battery companies supply GB?
LG Chem has supplied 420 MWh of battery system capacity, while Samsung SDI has contributed 370 MWh (see chart below). When it comes to the provision of battery cells to GB, Chinese companies are overwhelmingly dominant. CATL alone has supplied nearly 2.4GWh, with BYD (590MWh being the second biggest supplier.
Battery energy storage revenues in Great Britain reached a rate of £88k/MW/year in January 2025, marking a 5% increase from December 2024 and the first back-to-back monthly revenue increase since early 2024. Source: Modo Energy Note: Monthly ME BESS GB revenues since January 2024
Are GB battery manufacturers making inroads?
Success has so far been limited – as the chart below shows, as of April 2024, not a single GB battery manufacturer or containerised battery system supplier has played a role in delivering battery energy storage projects of 50MWh or greater. Yet, there are a number of GB battery manufacturers that are seeking to make inroads into the market.
Who makes GB battery cells?
South Korea's LG Chem and Samsung SDI are the third and fourth biggest suppliers of battery cells to GB, with 540MWh and 460MWh respectively. However, there is concern that GB, like Europe and the US, is over-reliant on Chinese suppliers and manufacturers for battery storage.