For some households, clearly yes. For others, not really. The difference is not the roof, and it is not the price of the system. It is how and when the household uses electricity.
This page is the honest version. It will not tell you solar is right for everyone, because it is not.
What has changed since most solar advice was written
If you have been reading about UK solar, a lot of what is out there dates from the Feed-in Tariff era and quietly assumes a scheme that closed to new applicants in 31 Mar 2019.
Three things are genuinely different now:
- There is no guaranteed government-set return. You are paid for exports by your supplier at a rate the supplier sets. See export payments.
- Batteries have become normal. 92% of UK batteries installed in 2026 went onto properties with solar.
- The tariff now matters as much as the panels. Time-of-use import and export tariffs have changed the arithmetic in a way that did not exist in 2017. See smart tariffs.
The core argument, in one paragraph
Electricity from the grid costs about 26.32p per unit. A unit your panels produce and you use in the house saves you that. A unit you export earns you roughly half of it. So solar is worth most to the household that uses the most of what it generates, at the time it generates it. Everything else is detail.
Price from the Ofgem price cap, 1 Oct 2026 to 31 Dec 2026. Checked 4 Nov 2026.
Who it suits well
- Someone at home during the day. Retired, working from home, young children at home. Daytime use is the whole game.
- An unshaded south, south-east or south-west facing roof, though east and west facing roofs work better than people expect and spread generation across the day.
- A household planning a heat pump or an electric car. These use a lot of electricity and transform how much of your own generation you use.
- Anyone willing to add a battery and move to a time-of-use tariff. This is where the strongest current case is.
- Someone who expects to stay put. The benefit accrues over years.
Who it suits less well
Saying this plainly, because nobody else does:
- An empty house from eight until six, with no battery. Most of your generation gets exported at half value. It still works, it just works less well.
- A heavily shaded roof. See shading.
- A very small usable roof area. The fixed costs of an installation do not shrink with the system, so small systems stack up poorly. See what it costs.
- Somebody moving within a couple of years.
- A roof that needs replacing soon. Do the roof first. Taking panels off and putting them back is expensive.
- A listed building or a conservation area, where permission may not be forthcoming. See can I install panels.
What you will and will not save
Government’s estimate is that households could save around £500 a year with rooftop solar. That is an average and yours will differ. What determines where you land is set out on payback.
What solar will not do:
- It will not take you off the grid. See going fully off grid.
- It will not keep your lights on in a power cut, unless you specifically pay for that. See blackouts.
- It will not cover a gas heating bill. If most of your energy spend is gas, solar does not touch it. That is what heat pumps are for, and it is the biggest single difference between the UK and sunnier countries where homes run on electricity.
Where the UK actually is
The UK passed two million solar installations during 2026, and the first half of the year produced almost 150000 certified solar installations, up 14% on the previous record.
Worth knowing as context: a quarter of all certified installations in 2026 went onto new build homes, and from 24 Mar 2027 the Future Homes Standard will require on-site renewable electricity, in practice usually solar, on new dwellings in England. So the growth is real, and a good deal of it is happening on houses before anyone moves into them.
Source: the Microgeneration Certification Scheme (MCS). Checked 6 Nov 2026.
The honest summary
Solar in the UK is not the investment it was under the Feed-in Tariff, and it is not the no-brainer it is in countries with twice the sunshine and cheap installation. What it is, is a reasonable long-term way to reduce a bill you will otherwise keep paying, which gets considerably better if you add a battery and a sensible tariff, and better again if you electrify your heating or your car.
If that sounds like a hedged answer, it is, because the honest answer is hedged. What we would say is: get quotes, ask for the workings behind the savings figure, and do the arithmetic yourself using the method here.