[keith_d]

Originally Posted by Bibio

why aren't https://www.spiritenergy.co.uk/kb-so...oltaic-windows products standard on industrial and domestic new builds. same goes for the roof tile type instead of slate.

From the spirit energy web page, "Transparency varies from 0% (fully opaque) to 50%". So that's dark grey to black. Not much use for letting light into your home.

Solar panels instead of roofing tiles is much more reasonable, though substantially more expensive than clay tiles. But around here (south east) almost all the new builds are apartment blocks with much less roof area per household than a conventional house.

The main issue with solar power in the UK is that we need energy mostly in the winter when the days are short, cloudy, and the sun is low in the sky.