Wedoany.com Report-Jun 22, In May 2025, the United Kingdom saw 21,125 small-scale solar installations, a 30% increase from May 2024, according to the accreditation body MCS. The organization also reported a record-breaking month for battery energy storage systems, reflecting growing adoption of renewable energy technologies.

May 2025 was a strong month for small-scale solar installations in the United Kingdom.

MCS data for photovoltaic (PV) installations up to 50 kW shows a total of 101,861 solar installations for the year ending May 31, 2025, up 37% from the 74,459 recorded in the first five months of 2024. While MCS certification is voluntary, it is required for accessing UK government incentives like the Smart Export Guarantee, making it a reliable indicator of market demand for small-scale solar.

Battery energy storage installations surged, with nearly 3,400 certified systems in May 2025, a 112% rise compared to May 2024 and the highest monthly total on record. The MCS battery standard, introduced in 2021, applies to systems with a maximum power output of 50 kW, supporting households in storing renewable energy for greater efficiency.

Heat pump installations showed modest growth, with 5,150 certified units in May 2025, slightly up from 5,084 in May 2024. The cumulative total surpassed 300,000 units, with 25,676 installations recorded in the first five months of 2025, a 13% increase year-to-date. However, this growth falls short of the UK’s target of 600,000 annual heat pump installations by 2028. To boost deployment, England introduced more flexible planning rules for heat pumps on May 31, 2025.

Ian Rippin, CEO of MCS, stated: “It’s great to see us reaching crucial milestones in 2025 in the small-scale renewables sector, a positive sign that consumer confidence in home-grown energy is continuing to grow.” The surge in solar and battery installations highlights increasing interest in sustainable energy solutions among UK households.

These developments underscore the UK’s commitment to expanding renewable energy infrastructure, driven by consumer demand and supportive government policies.