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20 panel system with a 9.6kwh battery, would like some advice
Hi I am considering installing a 20 panel system with a 9.6kwh battery. Been quoted £8k for everything via a local council scheme. We live very rurally with no 3g/4g signal and therefore cannot get a smart meter. Would this mean I should reconsider? Use approx 5000 kwh per annum.
Many thanks for any help.
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9 Replies
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Can you tell us the Inverter size as it is this that will determine your output? If you cannot have a smart meter it might be hard to get paid for export (but not necessarily impossible – others will comment on this) Assuming you pay 25p/kwh currently and can live off solar output for 3000kwh of your annual usage (you will not in winter) then your potential annual saving is 3000 x £0.25 = £750pa – 11 year payback – if you a comfortable with this then go for it!!!
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You will still use the solar that you make, and you don’t need a smart meter for that. If you want to export excess you just need a meter that has export also, doesn’t have to be smart connected
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If you don’t export you can have as large an inverter as you want, got 11kw single phase here with 11kw of panels, 15kw of storage. Self install, I turn my main electricity supply of from March until end of Oct.
My use is about the same as yours
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You can use the solar, and store the excess. No smart meter required for that. I’d say that 8K is a pretty good price for what you are getting.
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What will you charge the battery with in weather like we have now is the problem. I’ve been generating 1kwh per day for the past week or 2. Dreadful. The smart meter would let you get on Agile or another tariff that would let you charge on the cheap in winter/gloom.
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5000 / 12 = 416 Kilowatt hours per month.
You must have a lot of really bad weather there.
I am assuming that the 20 panels are 400 watt panels.
That would be 8000 watts of solar.
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Maybe ask your mobile telco for a signal booster. I think the smart meter network uses O2 so maybe need to come from them to enable smart meter data over 3G/4G booster
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Sounds great to me. You will probably produce enough electricity for your needs. Average 3/4 bed house uses on average about 8/10 kWh per day.
Do not have a smart meter ever.
Bob smith
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Please be careful with the local council scheme https://www.youtube.com/watch?v=pGJctmrQMws
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