Solar System Quote

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: 142
    First Anniversary First Post Name Dropper
    Forumite
    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 ....
    18 x 390W (7.02kW) East/West split over two flat roof areas at 10 degrees inclination.
  • EcoScruples
    EcoScruples Posts: 387
    First Anniversary Name Dropper First Post Photogenic
    Forumite
    edited 21 June 2022 at 6:49PM
    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: 13,640
    First Post First Anniversary Photogenic Name Dropper
    Forumite
    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 Go elec & Tracker gas / Shell BB / Lyca mobi. Ripple Kirk Hill member.
    2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 30MWh generated, long-term average 2.6 Os.
    Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs.
  • joon79
    joon79 Posts: 44
    First Post First Anniversary Combo Breaker
    Forumite
    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: 387
    First Anniversary Name Dropper First Post Photogenic
    Forumite
    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.
Meet your Ambassadors

Categories

  • All Categories
  • 341.7K Banking & Borrowing
  • 249.7K Reduce Debt & Boost Income
  • 449.1K Spending & Discounts
  • 233.8K Work, Benefits & Business
  • 606K Mortgages, Homes & Bills
  • 172.5K Life & Family
  • 246.7K Travel & Transport
  • 1.5M Hobbies & Leisure
  • 15.8K Discuss & Feedback
  • 15.1K Coronavirus Support Boards