I'd be up there like a ratnowty wrote: ↑Mon Aug 01, 2022 3:11 pmCan only be 200mm off the roof or wall with permitted planning but you can put them nearly anywhere on a building. So 65 degree slope on a flat roof will need planning permission. Just stick them up nearly flat, then over time when neighbours get used to them increase the height slightly. And putting them diagonally is more likely for your neighbours to complain as they they wont look right. If they are nearly flat it wont matter that they don't face true south and anything from SE to SW hardly makes a difference.openspaceman wrote: ↑Mon Aug 01, 2022 2:51 pmOnly a week so far and people may be on holiday.
I thought you were only allowed the first rooftop array under planning rules but am unsure.
The flat roof is 2ft higher than the bottom of the existing 8 pairs so I should be able to fit 4 off 410W half cell panels portrait as the diagonal is 4.5m to point south but one may get shaded by a parapet after midday and need mitigating with some electronic gizmo. I had hoped to get more than 1640W and would prefer 3kW but may have to clamber up there with a cardboard cut outs of different panels to see what the possibilities are. I think I want a 65 degree angle for winter insolation.
The array would be below the ridgeline of the original building (flat roof extension dates from 1959)
If you've got the space just put more up, like Joeboy and me.
The problem with steep for winter is you get more generation of very little, when if flat you'll find it does very well in cloudy days which if your in the UK, we get a lot of.
if you can't.
! In true Holy Grail fashion 'GET ON WITH IT! 
Admittedly, as low and straight as possible but no way I'd be waiting for a planning office twonk to get to my bit of paper. Slows the flow of electrons man. Get intae it!Very good advice.
'The problem with steep for winter is you get more generation of very little, when if flat you'll find it does very well in cloudy days which if your in the UK, we get a lot of.'
