This image was AI-generated.
Plug-in solar panels up to 800W became legal to connect to a UK plug socket on 15 April 2026, and the rule allowing a certified kit to go straight into that socket without an electrician takes effect on 27 August 2026. As of today (31/07/2026), no plug-in product has actually been certified yet, so nothing branded Lidl exists on a shelf today. The numbers are worth knowing regardless: the legal maximum plug-in kit generates roughly 640 to 760 kWh a year, against around 3,400 to 3,800 kWh a year from a typical 4kWp rooftop system in southern England, a four to six times difference.
