The four routes, explained properly.

Plain English, real numbers from our engine, and the best things other people have made – so you can decide like someone who's done the reading.

Rooftop solar

The big one. Panels on the roof, free electricity from the sky, a 12-year-ish payback.

Panels plus a wall battery. Three ways to gain, one hefty price tag.

No panels. Buy cheap overnight electricity, use it when it's dear. Sunshine optional.

The kit that leans on the fence and plugs into a socket. Legal now – emerging fast.

Or skip the reading – tell us about your home and we'll rank all four for you.