Solar panels because not only is it a decent financial return (effectively 10% pa interest, and climbing with energy prices), but that's a lot of energy generat

Solar panels because not only is it a decent financial return (effectively 10% pa interest, and climbing with energy prices), but that's a lot of energy generated sustainably instead of by fossil fuels. I'd recommend this to anyone. From a UK perspective, it seems solar PV is still worth doing financially even without getting paid anything for export, now that electric prices are shooting up. And the possibility of one day charging your car from it.