I've had a quote from Octopus for 16 panels (7.04kw) on a SW facing roof (50 degree pitch). The quote appears good value at £7,300 with a GivEnergy 5.2kWh battery. They have given the option to have a Enphase IQ Battery 5kw battery, but the price goes up to £10,089. I have no knowledge of either of these brands and the price difference suggests that the cheaper one is a bit of a no brainer (comes with 12 year guarantee). Any thoughts on this in terms of price and battery brand. There is also an option for a 10kw battery, but again the price goes up to £8,740 & £11,290 for the different brands. We have / will have a 7kw ASHP.

 

I'm also getting a quote from Wickes and may try a couple of local providers, but instinct tells me no one will beat the Octopus price.

The major parts are £1500 for battery, about £600 for a decent hybrid inverter, £900 for the PV panels, plus mounts and a few bits and bob, so about 50/50 parts and installation on your lower price quote.