Solar/battery quote

Netexporter

That's roughly the orientation of my gaff. There's a slight advantage to be facing a bit west of south in that you should get a bit more production, later in the afternoon, when the half-hourly price is highest.

Which part of the country are you in? Your quote looks to be in the right ballpark for my proposed AOI and solar system.

cheesesarnie

Near York. Glad to here getting close. Are you going for the North aspect as well?

Netexporter

cheesesarnie said:

Near York. Glad to here getting close. Are you going for the North aspect as well?

I'm in Mid-Wales, so probably too far from where the installer is based, which is a pity.

I'm considering doing a room-in-the-roof extension, so I'll leave the north side until then, if I do it. It would make a saving in roofing material, as I'd have in in-roof installation, and I could also get an additional battery, VAT free, with the additional panels.

Screwdriva

cheesesarnie said:

Thanks for the advice guys.
Had a further quote through from a supplier who actually understands the need for DNO!
8 x Jinko 435w + Tigo optimisers (across 3 different aspects S/E/W - roof mess)
GE AIO 
£11.4k
or
20 x Jinko + optimisers (12 additional on North facing roof)
GE AIO
£13.2k
Extra £1.8k for 12 panels is tempting even if theyre North facing. Tell me I'm wrong.

Thanks

5 additional inputs based on my experience:

1) North facing panels produce less energy and have a significantly longer ROI period (pretty obvious stuff but I thought I'd share). Perhaps investing the additional amount in Ripple Energy may prove more optimal?

2) The GE AIO does not have an inbuilt inverter and will need one. I recommend the SolarEdge unit for your roof as it has multiple aspects and may experience slight shading due to this. 

3) I would never install Junko panels on my roof. Always go with panels from reputed, quality brands like REC/ Solarwatt/ Panasonic/ Hyundai/ Sharp/ Eurener/ REA/ Meyer Burger etc. even if confirmation bias from existing owners says otherwise. Believe me, most don't appreciate aftersales support till you need it!

4) Unless your annual consumption is well in excess of 4000 kWh, a battery will likely never return your investment to you within the 12 year warranty period. Unless you experience blackouts, something to consider before investing the additional ~£7K in the All in One. Why not sell your excess PV to the grid via Octopus Flux instead? 

5) Based on quotes I've just seen, an 8 X Sharp 420W Black panel system with SolarEdge Optimizers + 3kW SolarEdge inverter with 20 year warranty will cost you ~£4900 installed with G98 + HIES. 

Hope this helps!

cheesesarnie

Thanks. I'll check some of that. They've quoted with a solis inverter.

Consumption is 6500kwh and rising with future Ev and ASHP.

I'll definitely check out the sharp/solaredge combo, thanks

Screwdriva

cheesesarnie said:

Consumption is 6500kwh and rising with future Ev and ASHP.

In that case, a battery is a must have. Just add ~£7K to the above number for the AIO which is the price they appear to sell for (give or take). I always advocate the PW2 over the AIO but both are on the better end of the spectrum!

cheesesarnie

Any particular reason on the pw2 front? I see they've been coming down in price recently. Unsure how close to to the AIO they are at this point.

Screwdriva

cheesesarnie said:

Any particular reason on the pw2 front? I see they've been coming down in price recently. Unsure how close to to the AIO they are at this point.

Really comes down to preference these days as the price for an installed PW2 (after rebate) is nearly at parity with the AIO. That said, if you plan on getting a Tesla, I'd get a PW2. The integration and app is class leading.

This write up is fairly accurate

https://blog.spiritenergy.co.uk/homeowner/all-in-one-vs-powerwall-2