These small systems are no substitute for full rooftop solar, but they could open the door to renters, flat owners and households, says Jeff Meyer

Tom Bawden: The new plug-in panels can save money – but also burn out your wiring, set fire to cladding or void your home insurance

Plug-in solar offers a lower-cost route into generating your own electricity, while professionally installed rooftop systems can produce several times more power, explains energy…