Modular thermal panel system, 100% natural slate, 100% waterproof, weights 20 kg/m2, satisfies up to 2/3 of annual needs for hot water, compatible with any storage and distribution system ...

This offers a discreet way of getting a solar system on your roof ... "If you're replacing an expensive roof like a slate roof or a metal roof, those numbers might work out," Solar United ...

Less common materials like slate or clay might require ... If it looks like your roof receives a lot of shade, a ground-mounted system or community solar might be better options for you.