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Solar System Quote

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Hi all,

I've been quoted today for a solar array including batteries - I am still waiting on some other companies to complete their proposals as comparison so just wanted to sense check the price please:

5.84kW System
16 × 365W JA Solar MBB Half-Cell Module
Sungrow 8kw inverter
2 x Sungrow 5kW batteries 
Scaffolding and full installation included

Total Cost - £15420

Comments

  • 94JDH
    94JDH Posts: 146 Forumite
    Fourth Anniversary 100 Posts Name Dropper
    joon79 said:
    Hi all,

    I've been quoted today for a solar array including batteries - I am still waiting on some other companies to complete their proposals as comparison so just wanted to sense check the price please:

    5.84kW System
    16 × 365W JA Solar MBB Half-Cell Module
    Sungrow 8kw inverter
    2 x Sungrow 5kW batteries 
    Scaffolding and full installation included

    Total Cost - £15420

    Probably around 3K too much for my liking, but as said by others price and demand ....
    PV total 19.8 kW system:
    23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
    13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
    6 x 390W south wall mounted at 90 degrees inclination.
    7 x 390W West wall mounted at 90 degrees inclination.
    2 x 5 kW hybrid inverters
    4 x 9.5 kWh batteries (38 kWh total)
  • EcoScruples
    EcoScruples Posts: 422 Forumite
    Third Anniversary 100 Posts Name Dropper Photogenic
    edited 21 June 2022 at 7:49PM
    Sounds an odd match up, normally your total kWp is higher than your inverter, did they say why an 8kw inverter and not a 5kw?
    4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
  • QrizB
    QrizB Posts: 17,858 Forumite
    10,000 Posts Fourth Anniversary Photogenic Name Dropper
    Sounds an odd match up, normally your total kWp is higher than your inverter, did they say why an 8kw inverter and not a 5kw?
    I'm guessing it's a hybrid and 8kW is the most it can provide from solar + batteries?
    N. Hampshire, he/him. Octopus Intelligent Go elec & Tracker gas / Vodafone BB / iD mobile. Ripple Kirk Hill member.
    2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 34 MWh generated, long-term average 2.6 Os.
    Not exactly back from my break, but dipping in and out of the forum.
    Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs, Best kettle!
  • joon79
    joon79 Posts: 44 Forumite
    Part of the Furniture 10 Posts Combo Breaker
    Sounds an odd match up, normally your total kWp is higher than your inverter, did they say why an 8kw inverter and not a 5kw?
    I just double checked this with them as another company said the same thing.  Its a SunSynk inverter and batteries and they said its 8kW to cope with the potential need to add a third 5kW battery after a year or two to improve efficiencies if required - does this make sense?
  • EcoScruples
    EcoScruples Posts: 422 Forumite
    Third Anniversary 100 Posts Name Dropper Photogenic
    Sounds like you're spending money you don't need to?
    I'm not an expert on inverter sizing but everything I've leant so far says you match them to your panels not your battery.

    I suppose the good thing is you'll have more freedom with an 8kW inverter to turn multiple loads on in your home and be able to use the battery, do you know what the batteries max output is? I doubt it's 8kW.

    It's an interesting quote that's for sure.
    4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
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