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Solar Panels
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Gary1237
Posts: 11 Forumite

Does the cost of Solar outweigh the cost of paying monthly bills -- How long would it take to payback the cost
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It depends on how many you have, how efficient they are, how many electrical items you have, how much electricity you use ( because what you don't use you can get paid for).
You will still have a monthly bill - the standing charges and the trickle used to keep the inverter running. It so bugs me that I sell electricity back to them all summer and still have a £15 bill every month2 -
No, you'll still be paying something.
Getting solar panels is like running a small business, of you do it well it can pay back after 7 years, if not it will never pay for itself.
There are two parts:
1) will you make most during the day when it's sunny - for example cook dinner at 2pm? Or do you go to work 9-18 and never get chance to use it? If you cook dinner at 2pm it could be free, if you cook in the evening it would cost you the same as not having them.
2) selling your electricity, will you be able to chase best deals possible? Some companies pay up to 25p and some as low as 7p - so if on sunny day you generate 30kWh it could be a difference between £2 and £6. Then again on cloudy day you can have £0 and £0.
So you see, it could work for some well, but may not at all for others.
I'd suggest an alternative to test yourself - if you're on Octopus try switching to Agile - you can leave anytime - and it will give you a chance to see how much you can adapt to weather changes - and yes, it sometimes also pays money for using electricity 😅1 -
Gary1237 said:Does the cost of Solar outweigh the cost of paying monthly bills -- How long would it take to payback the cost
Assuming you have a West/ East/ South aspect roof that's large enough, Solar PV is one of the few technologies that almost always makes economic and ethical sense. Even if doesn't totally offset your utility bills, it will dramatically reduce them. In my experience, most rooftop solar installations (no battery) pay for themselves between 5.5-7.5 years.
- 10 x 400w LG + 6 x 550W SHARP BiFacial Panels + SE 3680 HD Wave Inverter + SE Optimizers. SE London.
- Triple aspect. (22% ENE/ 33% SSE/ 45% WSW)
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)Feel free to DM me if I can help with any energy saving!1 -
I'm another who hasn't had to pay anything to our energy company since the solar was installed. Export payments over each summer have covered the cost of gas and electricity use over the winters so far. Admittedly this has been helped by the government £400 winter payment and Saving Sessions.
We are fairly low users and don't yet have an EV. Our small battery helps, so we can cook in the evenings without drawing from the grid and it can be filled overnight at cheap rate in winter when there's not enough being produced by the panels during the day.Barnsley, South Yorkshire
Solar PV 5.25kWp SW facing (14 x 375) Lux 3.6kw hybrid inverter installed Mar 22 and 9.6kw Pylontech battery
Daikin 8kW ASHP installed Jan 25
Octopus Cosy/Fixed Outgoing1 -
We also have zero (or slightly negative) bills for gas and electric, even with an EV to charge. Panels and battery are nearly 3 years old and should pay for themselves by year 7.
6.4kWp (16 * 400Wp REC Alpha) facing ESE + 5kW Huawei inverter + 10kWh Huawei battery. Buckinghamshire.2 -
Octopus made us set up a DD to cover the standing charge but I have over £600 credit now so intend to cancel that.YNWA
Target: Mortgage free by 58.1 -
thats a good Credit Niv- Thank you for all comments - I think Solar is the way forward1
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Niv said:Octopus made us set up a DD to cover the standing charge but I have over £600 credit now so intend to cancel that.Reed0
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Reed_Richards said:Niv said:Octopus made us set up a DD to cover the standing charge but I have over £600 credit now so intend to cancel that.Niv said:Octopus made us set up a DD to cover the standing charge but I have over £600 credit now so intend to cancel that.PV total 19.8 kW system:
23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
6 x 390W south wall mounted at 90 degrees inclination.
7 x 390W West wall mounted at 90 degrees inclination.
2 x 5 kW hybrid inverters
4 x 9.5 kWh batteries (38 kWh total)3
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