The number of MCS certified solar panel installations in 2025 has now surpassed 203,125 and brings the total to 1.85 million certified solar panel installations to date.

One of the key drivers behind the growth has been installations on new build properties. Since MCS started collecting data for new builds in October 2023, there have been 139,425 certified solar PV installations on properties of this type, accounting for 32 per cent of total solar installations during this period. This proportion has risen to 35 per cent in 2025 and in June earlier this year, the record for the highest volume of certified solar going onto new builds in a single month was broken, with 9,507 installations.

The upcoming Future Homes Standard, which will effectively mandate solar panels on new builds by 2027, is set to be published this year. This sets the stage for even further growth in the newbuild solar market.

There has also been significant growth in battery storage, often installed alongside solar panels to store excess electricity. By the end of September, certified battery storage installations had increased by 122 per cent compared to the equivalent period last year, with total installations now reaching 59,000.

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