New builds with solar pv

Post Reply
richbee
Posts: 601
Joined: Tue Apr 19, 2022 3:39 pm
Location: Northumberland

New builds with solar pv

#1

Post by richbee »

There's a large new development on a brownfield site next to the metro line by my stepson's flat. They have gone up really quickly, and I was pleased to see that most of them I can see have solar pv built in😁

Image
Solar PV since July '22:
5.6kWp east/west facing
3.6kW Sunsynk hybrid inverter
2x 5.12kWh Sunsynk batteries
1.6kWp Hoymiles East/West facing PV on the man cave
Ripple DW 2kW
Ripple WB 200W
AGT
Posts: 981
Joined: Sat Jan 29, 2022 11:26 am

Re: New builds with solar pv

#2

Post by AGT »

Same near me, some have 3, 4,5 6 panels when it could be 10.11,12

Imagine it’s a good way of climbing the EPC for planning
dan_b
Posts: 2288
Joined: Tue Jun 15, 2021 10:16 am
Location: SW London

Re: New builds with solar pv

#3

Post by dan_b »

Good to see. Wondering where that shading is coming from though? !
Tesla Model 3 Performance
Oversees an 11kWp solar array at work
User avatar
Stinsy
Posts: 2840
Joined: Wed Jun 02, 2021 1:09 pm

Re: New builds with solar pv

#4

Post by Stinsy »

This "box ticking" really annoys me. Everything to do with new-builds seems to be doing the absolute minimum to comply with the exact letter of the rules.

I've said before that all new-builds should have 1kWp of solar and 2.4kWh of battery per bedroom as a starting point.

Chucking up a couple of panels on a vast roof is just stupid.

This one for example:


Image

Why not put up a 6th panel?
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger

(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
wookey
Posts: 40
Joined: Mon Oct 18, 2021 4:44 am

Re: New builds with solar pv

#5

Post by wookey »

AGT wrote: Tue Nov 19, 2024 11:27 pm Same near me, some have 3, 4,5 6 panels when it could be 10.11,12

Imagine it’s a good way of climbing the EPC for planning
That's exactly why they do it. 2 or 3 PV panels on the roof is the easiest way to up the EPC a grade. Whilst adding MVHR will push it down, and for a long time boilers scored better than heat pumps (that may have finally been fixed by now - not sure?).

Meanwhile speccing an AECB Carbonlite level 2 build gets you a building that is significantly cheaper to build and has only 60% of the heat-load and emissions of an EPC A building. But mass housebuilders will still swear blind that anything other than what they currently do is 'too expensive'. So they are (almost) all spending more money building worse houses that are much more expensive to run, and higher carbon both upfront and whilst in use. (To be fair a lot are still getting away with EPC C which probably is cheaper than Carbonlite level 2 - I'm not aware of anyone having tested that in practice).
DIY deep 1960's house retrofit: http://wookware.org/house/retrofit
MVHR, IWI, EWI, 3G windows, 7kW PV, 16kWh battery, woodburner,
perimeter insulation, extension, garage conversion, UFH, garden veg
resybaby
Posts: 303
Joined: Thu Aug 17, 2023 3:33 pm
Location: Cornwalls North Coast

Re: New builds with solar pv

#6

Post by resybaby »

Sames happening down here in sunny Cornwall, new houses going up with 2 token small panels going on roofs almost as an after thought - surely the builders could add a realistic amount on as a 'customer specific optional extra' a bit like picking the colour of the bathroom tiles or which doorbell is fitted?

The absurdity of our building requirments are legendary.

Mate of mine recently bought a house to do up and extend in Sidmouth, had a flat roof over part of it that was knackered so he obtained planning permission to rip the lot off and put up a pitched roof replacement on the same structure.

As permission was granted, my mate cracked on and ripped off the flat roof. Then some numpty from the council decided that a 'bat and bird' survey was needed by an expert and stopped further works till this survey was done.

Mate had already removed everything by this point but was still made to cough up close on £500 to get an expert to stand within the four walls and look up at the now visible sky to provide his 'report' for the council numpty.

Surprisingly there were no nesting bats nor birds in the non existent previously flat roof.

Panels on new builds should be compulsory imv
4.0kw FIT PV solar Sunnyboy 4000tl & 7 x 570w JA solar panels
7.08kw JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
4500l RWH
Full Biomass heating system
iBoost HW divertor
Full house internal walls insulation
600min Loft insulation
richbee
Posts: 601
Joined: Tue Apr 19, 2022 3:39 pm
Location: Northumberland

Re: New builds with solar pv

#7

Post by richbee »

dan_b wrote: Wed Nov 20, 2024 1:32 pm Good to see. Wondering where that shading is coming from though? !
Ah - that would be the 5/6 storey apartment block where I was standing
Solar PV since July '22:
5.6kWp east/west facing
3.6kW Sunsynk hybrid inverter
2x 5.12kWh Sunsynk batteries
1.6kWp Hoymiles East/West facing PV on the man cave
Ripple DW 2kW
Ripple WB 200W
User avatar
nowty
Posts: 5774
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: New builds with solar pv

#8

Post by nowty »

richbee wrote: Wed Nov 20, 2024 5:05 pm
dan_b wrote: Wed Nov 20, 2024 1:32 pm Good to see. Wondering where that shading is coming from though? !
Ah - that would be the 5/6 storey apartment block where I was standing
It is November !
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Post Reply