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Property/DIY

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Solar panels payback time.

35 replies

oncemoreuntothebeachdearfriends · 26/03/2026 18:15

I live in bungalow land, mostly south-facing, but none of the neighbours have them so I can't ask - & obs I don't trust sales reps.

If you've got solar panels, what is your estimated payback time ?
Or if you haven't, did the sales rep give you an estimate 😀.

I know it's a "how long is a piece of string" question, but I'd like some idea before I ask for quotes.

Thank you.

OP posts:
IAxolotlQuestions · 27/03/2026 09:19

Namechangedasouting987 · 27/03/2026 09:04

Our system relies on the grid. Which is annoying. We have batteries which dont power us in a power cut. I would like to isolate from the grid, to be more self sufficient.
In the current climate I see this as the majpr benefit of solar panels. As the grid infrastructure may come under a sustained attack.

We have ours set up so that they work even if the grid goes down. They won’t power the whole house, but they will still charge the batteries and I can run the freezers and some other bits from the batteries via a plug socket - and that’s all I’d need.

Namechangedasouting987 · 27/03/2026 09:23

IAxolotlQuestions · 27/03/2026 09:19

We have ours set up so that they work even if the grid goes down. They won’t power the whole house, but they will still charge the batteries and I can run the freezers and some other bits from the batteries via a plug socket - and that’s all I’d need.

I need to look into how to do this.

theDudesmummy · 27/03/2026 09:28

We are off-grid so no electricity related costs at all. Probably about 7 years, but we bought the panels 5 years ago so they were much more expensive then than they would be now, as were the batteries (only moved into the house a year ago though).

Clearinguptheclutter · 27/03/2026 12:25

IAxolotlQuestions · 27/03/2026 09:19

We have ours set up so that they work even if the grid goes down. They won’t power the whole house, but they will still charge the batteries and I can run the freezers and some other bits from the batteries via a plug socket - and that’s all I’d need.

we also have this set up which costs extra. DH is convinced that in the future we'll have large scale blackouts so even if the rest of the world goes to pot I'll still be able to cook beans and do the laundry.

PollyPhonic · 27/03/2026 12:55

We got ours before the pandemic, and I reckon it roughly halved our electricity costs overall (more in summer, less in winter).

But obviously it depends on your usage patterns and your ability to shift usage to times when the panels are producing lots of power. So you want to charge or run appliances during the day rather than overnight, and try to run hungry appliances sequentially rather than at the same time.

If you're not selling back to the grid, a solar diverter is worth paying extra for (£100 or so iirc) - it diverts any surplus power into the hot water tank, thus saving you gas/oil on water heating. On a sunny summer day we can get a full tank of hot water as well as being able to do laundry/dishwashing more or less for free.

Tortephant · 27/03/2026 15:16

TartanCurtain · 27/03/2026 08:39

I've had them for 5 years and done our house insurance by price comparison sites every year since. It's absolutely not an issue. Loads of companies don't even ask about them (even when they want precise details of our door and lock type, proximity of trees and local flooding incidents).

I don’t use price comparison for home insurance. I’m interested in full and comprehensive coverage, not a wriggle room policy. Perhaps If you ask you will realise you aren’t covered, or have even invalidated your policy by not declaring them. Not a risk I’m going to take.

IAxolotlQuestions · 27/03/2026 16:39

Tortephant · 27/03/2026 15:16

I don’t use price comparison for home insurance. I’m interested in full and comprehensive coverage, not a wriggle room policy. Perhaps If you ask you will realise you aren’t covered, or have even invalidated your policy by not declaring them. Not a risk I’m going to take.

Edited

While insurers might not like to make pay-outs, there are rules that bind them including the treating customers fairly rules, and the fact that if they want to know about something they have to ask.

Our insurance is just fine.

You may, however, be causing yourself higher premiums by divulging info that they don't need/ask for, but will 100% price in to your premiums against your interests if you feel a need to specifically disclose it.

hippospot · 27/03/2026 16:43

Approx 8 years. We have a big battery and an EV and our bills are already much lower.

Tortephant · 27/03/2026 17:43

IAxolotlQuestions · 27/03/2026 16:39

While insurers might not like to make pay-outs, there are rules that bind them including the treating customers fairly rules, and the fact that if they want to know about something they have to ask.

Our insurance is just fine.

You may, however, be causing yourself higher premiums by divulging info that they don't need/ask for, but will 100% price in to your premiums against your interests if you feel a need to specifically disclose it.

Insurance is about knowing you have cover. No point paying any premium if not.

oncemoreuntothebeachdearfriends · 27/03/2026 18:33

Thanks very much everyone, extremely helpful.
We are very low users, 2 adults, petrol cars, no tumble dryer !
I'll get some quotes, so it's good to be armed with the knowledge I've gained.
8 years possible pay back is a serious drawback at our age !

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