camelot-forum.co.uk

Solaredge 567 kWh
Victron 442 kWh
WT1 202 kWh
1,211kWh clean generation.

First ever 1MWh month in Solar alone!

kWh/kWpk 182

Roger,
Thats a very good result. Mine was 177kwh/kwp

How do you get on with the leccy supply co. regarding your very low grid use. I can only imagine probs for me as i do not have a smart meter.
Ken

Nowty Towers Power Station

Main 4kW PV system generated 536 kWh which is about 4% lower than baseline but that's probably solely down to export curtailment.
Total PV arrays generated 1361 kWh.

Electric Import was 4 kWh.
Gas import was 23 kWh.
Out of house EV charging was 150 kWh.
Petrol used in EV hybrid 2 litres or 19 kWh.
Total imported energy use - 196 kWh

Electric export was 402 kWh.
WT1 generated 232 kWh.
Total energy offset - 634 kWh

Net energy for Nowty Towers - minus 438 kWh

__

Only 402 here in NW Surrey, mostly because of the WSW orientation I suspect, still waiting for reply from planning department about whether I can add panels to the 2 storey flat roof diagonally to face true south and optimised for midwinter.

openspaceman wrote: ↑Mon Aug 01, 2022 1:01 pm Only 402 here in NW Surrey, mostly because of the WSW orientation I suspect, still waiting for reply from planning department about whether I can add panels to the 2 storey flat roof diagonally to face true south and optimised for midwinter.

Can I ask how long you have waited for regarding a reply?

Can you not just do it under permitted planning rights?
if you can't.

Joeboy wrote: ↑Mon Aug 01, 2022 2:11 pm
Can I ask how long you have waited for regarding a reply?

Can you not just do it under permitted planning rights?
if you can't.

Only 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)

openspaceman wrote: ↑Mon Aug 01, 2022 2:51 pm

Joeboy wrote: ↑Mon Aug 01, 2022 2:11 pm
Can I ask how long you have waited for regarding a reply?

Can you not just do it under permitted planning rights?
if you can't.

Only 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)

Can 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.

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.

Ken wrote: ↑Mon Aug 01, 2022 11:40 am Roger,
Thats a very good result. Mine was 177kwh/kwp

How do you get on with the leccy supply co. regarding your very low grid use. I can only imagine probs for me as i do not have a smart meter.
Ken

Ken, you keep your cards close to your chest and your not yet on my secret list.

Reply or PM me with your average annual yield or kWp of panels you have and be the 64'th member,
https://camelot-forum.co.uk/phpBB3/view ... f=13&t=922