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Record quarter for UK small-scale BESS installations

MCS records almost 3,000 small-scale BESS installations in March 2025, a record-breaking month. Certified BESS installations in Q1 2025 were more than double the same period in 2024.

By

Matthew Lynas

Apr 22, 2025

Small-scale UK battery storage installations smashed records in the first three months of 2025, according to the latest data from MCS. The certification body recorded 2,965 installations in March 2025, the highest monthly volume to date. The previous record was 2,775, set in February 2025. There were 8,337 certified battery storage installations in the first three months of the year.

MCS certification isn’t required to install small-scale battery storage in the United Kingdom – meaning the data will not capture all installations – however March 2025 installations were up 147% on March 2024, suggesting growing demand for battery energy storage systems (BESS) among UK consumers. The MCS battery standard covers BESS installations with power outputs up to 50 kW.

MCS has recorded more than 33,000 battery storage installations since it started keeping data on the technology in 2022, 84% of which were recorded since January 2024. Installations for the first quarter of 2025 were up 147% on the same period in 2024, putting small-scale storage on course to beat the annual installation record of 20,083.

In a press release, MCS CEO Ian Rippin said it was “great to see the that the number of people adopting low-carbon alternatives is continuing to grow month on month.”

Increased demand for small-scale BESS comes as the number of UK contractors certified with MCS grows. A total of 332 contractors gained MCS battery storage certification in 2024, taking the total to more than 2,000.

Written by

Matthew Lynas
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