Another PV and battery quote

Hi, just wanted to get your opinion on a quote my brother has received. Based on what I have read on this board, I think it looks ok, but it is always nice to get a broader opinion.

The total quote is from a new company called Make My House Green and is for £15,700. It includes:
7.8kWp panels (20×390W) (either JA or QCell according to supply availability)
6kW Solis hybrid inverter
2×3.5kWhr Pylon batteries
20 optimisers (because there is a big tree to the east that shades part of the roof)
IBoost immersion diverter
MCS registration

The quote also clarifies that the installer will sort the DNO G99 application and gives a timeframe of 3-4 months till install.

4.3kW PV, 3.6kW inverter. Octopus Tracker. Zoe. Ripple x 2. Cheshire


  • Solarchaser
    Solarchaser Posts: 1,663 Forumite
    First Anniversary First Post Name Dropper
    Looks pretty darn expensive to me to be honest. 
    8kw of panels say £10k including optimisers 
    Diverter say £500 installed 
    3.5 pylons are around £1200
    Here is the larger one at £1660

    So I'd be looking for maybe £13k or £13.5k

    He may be able to work them down.
    West central Scotland
    4kw sse since 2014 and 6.6kw wsw / ene split since 2019
    24kwh leaf, 75Kwh Tesla and Lux 3600 with 60Kwh storage
  • I should add that he is in Surrey.
    4.3kW PV, 3.6kW inverter. Octopus Tracker. Zoe. Ripple x 2. Cheshire
  • Doesn't the inverter make up the difference between his quote and your suggested price?
    4.3kW PV, 3.6kW inverter. Octopus Tracker. Zoe. Ripple x 2. Cheshire
  • Screwdriva
    Screwdriva Posts: 1,163 Forumite
    First Post First Anniversary Name Dropper Photogenic
    Agree with Solarchaser - the quote is a bit too high. Additionally, components are all budget Chinese brands. 

    A recent quote for the Surrey area I've seen:

    20X 400W Sharp Panels
    20X SolarEdge Optimizers
     1 X SolarEdge Inverter 

    25 year warranty on everything. ~ £10K. Add another £440 for a MyEnergi Eddi diverter. 

    Hope this helps give you a steer. 

    -  10 x 400w LG + 6 x 550W SHARP BiFacial Panels + SE 3680 HD Wave Inverter + SE Optimizers. SE London.
    -  Triple aspect. (22% ENE/ 33% SSE/ 45% WSW)
    -  Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)

    Feel free to DM me if I can help with any energy saving!
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