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This is the current Solar Together price list for Herts - about £8.5k for what you want. 40% YoY price drop...
Seriously considering just loading up on panels on the house roof as well as garage (currently planned) as they're so cheap and I'd rather install all at once.
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Soul
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Interesting thanks. Maybe I’ll look into it again then if prices have dropped that much
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Prices have not come down round here. Joju quoted so much they clearly don’t want the job. A local firm quoted for 6 panels plus powerwall at £15k. Octopus solar was cheapest (generic) quote so far at £11k for 8 panels and 9.5 battery. I know 8 won’t fit, and they don’t have a grid backup battery option yet. Still too much when savings are likely to be about £500/year.
This tool was v helpful, lots of tweaks available - https://www.photonik.solar/savings-calculator
JonD
I’m sure you will check, but for your NE panels, generation will be very low. Check very carefully before going for those as they’re unlikely to be cost effective for a long time.
Was going to be about 10 year payback time for us which was the product warranty period, matching what @Howard says above, but our quote was about £12k last year for 6 panels (SSE facing) + 9.6kWh battery. Not worth it. If that spec got down to about £6-7k then I’d probably jump.