Quote for integrated solar panels? Whatcha think?

[CalvinHobbes]

This is what I received, mcs registered and guarantee 25 years

"So with single phase you will be limited to a 5.88kW system (x14 panels) 

This system in-roof is priced at £6500 fully installed. 

A 5kW battery would be a good starting point and then you can add additional batteries in the future - this battery is priced at £3000. 

 

With three phase you are allowed up to a 15kW (x36 panels) This may be slightly large as it would be a small scale commercial system... but you could go for an 8kW (x20 panels) This system is priced at £9000 fully installed. 

Again either a 5kW or 10kW battery would be advised - 5kW would be £3000, 10kW would be £5500. "

Edited May 15, 2023 by CalvinHobbes

[Thorfun]

Where did the installer get those max array sizes from? Was that after a G99 application? 
 

also , it’s hard to compare the price as it’s short on detail! In-roof/on-roof, hw manufacturer etc. 

[Dave Jones]

the GSE in roof trays are £65

Solar panels say £160

plus inverter and cables.

 

not a bad price id say. They making £1500-2000 for a days work.

 

 

[Conor]

Ditto to what Dave says. My 5.5pkW array cost £4300 for materials only, so £2k for all the install work is reasonable.

[Thorfun]

9 hours ago, CalvinHobbes said:

This system in-roof

 

1 hour ago, Thorfun said:

it’s hard to compare the price as it’s short on detail! In-roof/on-roof,

whoops! i seem to have missed the bit where you already said it was in-roof! 🤦‍♂️

[CalvinHobbes]

3 hours ago, Thorfun said:

 

whoops! i seem to have missed the bit where you already said it was in-roof! 🤦‍♂️

I thought the g99 was not needed for 3 phase?

[Thorfun]

10 minutes ago, CalvinHobbes said:

I thought the g99 was not needed for 3 phase?

let me start this with the obligatory 'i'm not an expert' arse covering...... 😉

 

afaik you can get 3.68kWp per phase without G99 (i believe you still need to submit a G98 though?) but your installer is saying you can have 5.88kWp. that's why i was questioning if you'd done a G99 application and the DNO have come back saying that was your limit. so, again afaik, on a 3-phase system you can have 11.04kWp system with a 3-phase inverter so 3.68kWp over each phase.

 

we have a 3-phase connection but our whole house is being run on a single phase. as such i didn't want a 3-phase PV system as 2 of the phases would simply be exported leaving only 3.68kWp to run the house. and as much as 3-phase smart meters should let you perform net-metering i just didn't believe it. and so we decided to put in a cheeky G99 application for 10kWp array and 5kW battery on a single phase and it was accepted! hardly anyone around here has solar PV so i think we got lucky with the area. but we now have 10.5kWp array with a single phase 10kW inverter so it should generate our house's daily needs in the summer and still fill our battery and car and any left over can be exported on the SEG.

 

obviously, if you're running your house on 3-phase then our situation isn't relevant. 🙂

[Pocster]

Be careful with vat . Vat is zero rated at point of single order for pv or pv with battery . A battery later will attract vat . Tbh there are ways to mitigate that 😉

[Pocster]

52 minutes ago, Thorfun said:

let me start this with the obligatory 'i'm not an expert' arse covering...... 😉

Think I might make that statement my tag line