yieldhog wrote:Thanks for your post Paul. I'll try to answer all your questions.
All the quotes include scaffolding.
The smaller number of panels would fit on an east facing roof and the 20 panels would be on two parts of the roof, east and SW.
The battey(s) would go in the integral garage.
We do not have an electric car and are unlikely to get one.
Our current electric consumption is a bit irrelevent at this point since we are in the process of going all-electric and eliminating gas completely.
In that case quote 3 sounds the best, and add another 2.5kWh of battery for about £1200. The extra couple of panels on the East face will give a bit more power in the late afternoon/evenings. Quote 1 sounds a little bit expensive compared to the others, but it might include the 'all in one' inverter/battery system which keeps the power on in the event of a supply failure but is more expensive than the 'normal' battery/inverter bundle.
https://midsummerwholesale.co.uk/buy/giv-energy for an idea of equipment and prices for extra batteries and kit.
Make sure you have the 5kw inverter.