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UK solar PV installations under 4 kW

Solar photovoltaic installations under 4 kW in the UK at each month end, the size of most home rooftop systems.

Department for Energy Security and Net Zero · Monthly · Installations · Updated 29 October 2026

Latest reading
1,394,840
September 2026
On the month
+1.0%
Calculated from the published readings
On the year
+13.6%
Calculated from the published readings
Sep 25OctNovDecJan 26FebMarAprMayJunJulAugSep 261,200,0001,250,0001,300,0001,350,0001,400,000September 2025: 1,227,813October 2025: 1,243,368November 2025: 1,258,016December 2025: 1,269,471January 2026: 1,281,446February 2026: 1,296,052March 2026: 1,314,583April 2026: 1,328,069May 2026: 1,339,122June 2026: 1,354,080July 2026: 1,368,685August 2026: 1,380,947September 2026: 1,394,840, up 13.6% on the yearSep 25DecMar 26JunSep 261,200,0001,250,0001,300,0001,350,0001,400,000September 2025: 1,227,813October 2025: 1,243,368November 2025: 1,258,016December 2025: 1,269,471January 2026: 1,281,446February 2026: 1,296,052March 2026: 1,314,583April 2026: 1,328,069May 2026: 1,339,122June 2026: 1,354,080July 2026: 1,368,685August 2026: 1,380,947September 2026: 1,394,840, up 13.6% on the year

Source: Department for Energy Security and Net Zero, Energy Trends: UK renewables. Contains public sector information licensed under the Open Government Licence v3.0.

Latest readings

PeriodReadingOn the monthOn the year
September 20261,394,840+1.0%+13.6%
August 20261,380,947+0.9%
July 20261,368,685+1.1%

Changes are worked out from the published values and can differ slightly from the publisher's own rates.

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