New homes aren’t even being built facing the right way to make good use of them…
That doesn’t actually matter (unless the only roof area faces directly north). Panels in an east-west facing pair of slopes generate slightly more power over the Day than panels on one half of that roof facing directly south. More panels, obviously, but panels are pretty cheap at this point
See I’m thinking we should build them lob-sided with a much larger south facing edge.
That’s very much what I’m doing with my small house, but it’s not worth changing the orientation of a whole suburb or whatever, slinging panels on both sides of the roof is plenty good enough
I’d have slapped some up myself, but then I swapped to Agile Octopus, cut my electricity bill basically in half, and it pushed any break even point waaaay into the future.
And while they are at it, put a battery in too.
That would be a game changer
They will never do this though
To be fair, a bunch of local authorities in London already have this mandate.
Same in my area up north, and has been for quite a while.