Views on this solar pV and battery quote

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 ? 

Replies

  • EctophileEctophile Forumite
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    My first thought is that you haven't actually said what the quote was.
    If it sticks, force it.
    If it breaks, well it wasn't working right anyway.
  • pinnkspinnks Forumite
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    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?
    Wiltshire - 5.25kWp
    3.5kWp: 14 x Phono Solar 250 Onyx, Sunny Boy 4000TL, WSW 40 degrees, June 2013
    1.75kWp: 7 x Phono Solar 250 Onyx, Sunny Boy 1600TL, SSE 45 degrees, March 2014
  • mrtaylor79mrtaylor79 Forumite
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    Ectophile said:
    My first thought is that you haven't actually said what the quote was.
    Sorry it is 8800 for this system 
  • Exiled_TykeExiled_Tyke Forumite
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    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?   
    Install 28th Nov 15, 3.3kW, (11x300LG), SolarEdge, SW. W Yorks.
    Install 2: Sept 19, 600W SSE
    Solax 6.3kW battery
  • edited 9 June 2020 at 8:48AM
    mickyduck55mickyduck55 Forumite
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    edited 9 June 2020 at 8:48AM
    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.

    3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch + Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 2000... no problems since
    13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...
  • mrtaylor79mrtaylor79 Forumite
    14 Posts
    10 Posts
    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 
  • mickyduck55mickyduck55 Forumite
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    I will send PM


    3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch + Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 2000... no problems since
    13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...
  • mrtaylor79mrtaylor79 Forumite
    14 Posts
    10 Posts
    I will send PM


    thank you sent you quick reply -
  • mickyduck55mickyduck55 Forumite
    334 Posts
    100 Posts First Anniversary Name Dropper
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    Hi just sent another pm..
    3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch + Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 2000... no problems since
    13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...
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