Views on this solar pV and battery quote

mrtaylor79

Hi there I have been looking at solar PV and Battery. I know have my first quote it is more than I was hoping for 

so using giv energy hybrid 5kw inverter
giv energy ac 8.2kwh 
14 x ja solar mono 410w 

working on an annual out out of 4695 kwh

estimated return of £502.4 of used energy return of initial outlay would take 13 years 

any thoughts ? 

Ectophile

My first thought is that you haven't actually said what the quote was.

pinnks

13 years at £500 would suggest about £6,500.  But a saving of £500 per year would suggest one would self-consume virtually all of the generation.  Is that realistic, even with a battery?

mrtaylor79

Ectophile said:

My first thought is that you haven't actually said what the quote was.

Sorry it is 8800 for this system 

Exiled_Tyke

This is way too high.  I thought the most economic panels were around the 300-350w mark.  I would guess that 410w are premium prices, but I may be out of touch?   

mickyduck55

pinnks said:

13 years at £500 would suggest about £6,500.  But a saving of £500 per year would suggest one would self-consume virtually all of the generation.  Is that realistic, even with a battery?

Hi my son has recently installed a 6 kWh array and 3 Pylontech 3.5 batteries.  His panels are SE and SW facing but his SW array is shaded reasonably early in the afternoon.. (about 3 pm) so presently his battery is fully charged by about 12 and his generation is finished by 3 pm so he is on battery late afternoon through to next morning.  He is a reasonably heavy user but has still exported 441.5 kWh to the grid from 1700 generation so managing to use about 75%.... I have a similar system but 4 kWh array facing SSW and manage to use about 65% but I dont go onto battery on a good day until 6 pm ish.. in the same time period I have exported 508.5 kWh.  So in conclusion its difficult for us to use it all even with a battery, the addition of an ASHP or in summer simply using AC would crack it... maybe EV but in day to day use not easy.

mrtaylor79

mickyduck55 said:

pinnks said:

13 years at £500 would suggest about £6,500.  But a saving of £500 per year would suggest one would self-consume virtually all of the generation.  Is that realistic, even with a battery?

Hi my son has recently installed a 6 kWh array and 3 Pylontech 3.5 batteries.  His panels are SE and SW facing but his SW array is shaded reasonably early in the afternoon.. (about 3 pm) so presently his battery is fully charged by about 12 and his generation is finished by 3 pm so he is on battery late afternoon through to next morning.  He is a reasonably heavy user but has still exported 441.5 kWh to the grid from 1700 generation so managing to use about 75%.... I have a similar system but 4 kWh array facing SSW and manage to use about 65% but I dont go onto battery on a good day until 6 pm ish.. in the same time period I have exported 508.5 kWh.  So in conclusion its difficult for us to use it all even with a battery, the addition of an ASHP or in summer simply using AC would crack it... maybe EV but in day to day use not easy.

What system do you have and out of interest how much if you don’t mind did it cost ? In south west facing property 

mickyduck55

I will send PM

mrtaylor79

mickyduck55 said:

I will send PM

thank you sent you quick reply -

mickyduck55

Hi just sent another pm..