Wall mounted solar panels?

ajbell

Already have 4kw system on my south facing roof and was thinking that wall mounted solar panels would be good for winter generation given the low sun angle.
Is this possible?.
Anyone done this?.

Martyn1981

Nothing wrong with wall mounted, loads around the world, and 2 of my panels are wall mounted as I had brackets made to mount them over the back door, and to match the pitch of the lower roof.

But .... I believe that wall mounted panels need planning permission, they aren't PD (permitted development). No idea if PP is easy or not.

You might want to consider mounting them at a steep angle, rather than straight to the wall. Use PVGIS to experiment, but for south facing in Oxford, for 1kWp I got:
35d 974kWh
70d 872kWh
90d 702kWh

As a guide, for the two panels, I paid an 'iron-man' to make 4 brackets, galvanised, pre-drilled (for attaching panel rails (as well as wall mounting)), including threaded rod and nuts for 12 fixings, and a tube of resin to fix the rods in the walls - came in at £100 in 2012.

ajbell

Didn't know Robert Downey did that kind of work, but was thinking 90d as I am more interested in getting some winter generation than total gen.

EricMears

ajbell wrote: »

was thinking 90d as I am more interested in getting some winter generation than total gen.

Even in Dec, a steep slope (say 75 deg) is better than true vertical.

michaels

Also isn't there a big chance of shading in winter with the sun so low?