Roof Pitch

[db9go]

What is the optimum roof angle for solar and do you need planning for the solar
We are thinking of putting up a new building which is south facing with a clear vue

 

[upnortheast]

Have you done the sums on solar. Since the demise of FIT the returns don`t add up.. Unless you are able to use all the leccy on site.

 

[br jones]

30 de

What is the optimum roof angle for solar and do you need planning for the solar
We are thinking of putting up a new building which is south facing with a clear vue

30 deg i think

 

[db9go]

Have you done the sums on solar. Since the demise of FIT the returns don`t add up.. Unless you are able to use all the leccy on site.

No i have not done the sums its just that we planning the new building and thought it might be a good idea

 

[upnortheast]

No i have not done the sums its just that we planning the new building and thought it might be a good idea

@Exfarmer will be along shortly with some guidance

 

[Doing it for the kids]

As above but I’ll help him out - what size is it and what ridge and eavesheight.

i would be tempted to focus on the sheds‘S needs first and make the Pv work around that

 

[db9go]

As above but I’ll help him out - what size is it and what ridge and eavesheight.

i would be tempted to focus on the sheds‘S needs first and make the Pv work around that

53m X 16m 6meves

 

[Exfarmer]

Ideal roof angles are complex, in the days of FIT it was simple, the angle to give max return which is facing due south pitched about 35 degrees.
However if you need to gain the maximum usable power it can be very different.
You need to ascertain when and how you are using the power. For most domestic installs an East West roof can be far superior, although only yielding about 85% of the output, the usable power can be far higher, sopince most domestic consumption is early morning late afternoon.
For a southern pitched roof again a higher pitch will give a higher winter yield good for heating , though not so good if your main use is cooling at midday in the summer when a pitch of about 30 is perfect