The number of small-scale renewable energy systems certified in the UK last month reached its highest level for an August since records began, according to the Microgeneration Certification Scheme (MCS).
The organisation reported more than 25,400 certified installations during the month, covering solar panels, heat pumps and battery storage systems. The figures, drawn from the MCS Data Dashboard, suggest continued growth in household and small business uptake of renewable technologies.
Battery storage showed the sharpest rise, with 3,217 certified installations in August – more than double the figure for the same month last year. The scheme has now recorded over 50,000 battery storage installations in total, with more than half carried out in 2025 alone.
Heat pump installations also grew, with almost 4,700 systems certified during the month. MCS data indicates that more than 40,000 heat pumps have been installed so far this year, supported in part by government incentives such as the Boiler Upgrade Scheme, which provides grants for replacing fossil fuel boilers with low-carbon heating.
Solar photovoltaic (PV) systems continued to make up the largest share of installations, with more than 17,500 certified in August. That brings the overall total since the scheme’s inception to 1.8 million.
The latest figures follow what MCS described as a record-breaking first half of 2025 for certified installations. The scheme, which sets standards for small-scale renewables and maintains one of the UK’s most comprehensive datasets on their deployment, said the momentum reflected growing consumer confidence in renewable energy as a means of producing electricity and heat at home.
MCS CEO Ian Rippin says:
“Off the back of a record-breaking first half of the year for MCS certified installations, it’s a positive sign to see us continue to reach important milestones. Our priority is to continue giving people confidence in home-grown energy, which is at the forefront of our redeveloped Scheme and the new-look MCS website.”
MCS publishes near real-time updates on renewable installations via its Data Dashboard, which is open to the public.
