Your electricity bill landed again and the standing charge alone made you wince. A neighbour mentions their solar panels, and you wonder whether the maths still works now that the generous old subsidy has gone. The honest question homeowners keep typing into Google in 2026 is simple: are solar panels worth it 2026, or did you miss the boat when the Feed-in Tariff closed?
Yes, for most owner-occupied UK homes solar panels are still worth it in 2026 — but the reason has changed completely. You no longer make money by being paid to generate. You save money by using your own electricity instead of buying it from the grid at price-cap rates. Get that one idea straight and every other number in this guide falls into place.
What actually changed: the FIT is gone, the SEG replaced it
The Feed-in Tariff (FIT) closed to new applicants on 31 March 2019. It paid you a set rate for every unit of electricity you generated, whether you used it or exported it, and it was generous enough that panels often paid for themselves on the subsidy alone. If you installed before that date you keep your FIT payments — they are index-linked and run for 20 or 25 years — but no new home can join.
Since January 2020 the replacement has been the Smart Export Guarantee (SEG). Under the SEG, any licensed electricity supplier with 150,000+ customers must offer you a tariff that pays for the electricity you export to the grid. The crucial difference: the SEG only pays for what you send back, not for what you generate and use yourself. Export rates in 2026 typically sit somewhere between 4p and 15p per unit depending on the supplier and whether you bundle it with their import tariff [STAT: confirm current SEG rate spread, June 2026].
Where the money actually comes from now
Here is the shift that catches people out. With electricity from the grid costing roughly 25–27p a unit under the 2026 price cap [STAT: confirm Q3 2026 price-cap unit rate], and a typical SEG export rate paying far less, every unit you use straight off your own roof is worth two to five times more than a unit you export.
So the value of solar in 2026 is no longer about export income. It is about self-consumption — running your kettle, washing machine, dishwasher, immersion heater and electric car on free daytime electricity instead of paying the grid for it. A south-facing home that genuinely uses most of its midday generation can save several hundred pounds a year before a single exported unit is counted.
This is the bold bit, and it is where most installers are too polite to push back: chasing export payments is a distraction. If you optimise your day around using your own power — and accept that you will export the surplus for pennies — solar in 2026 is a sound buy. If you expect the panels to pay you the way the old FIT did, you will be disappointed, and you should not sign.
The 2026 numbers: cost, generation and payback
What a system costs to install
A typical domestic installation in 2026 is a 3.5–4 kWp system: roughly 10 to 12 panels covering a decent pitch of south, east or west-facing roof. Installed prices generally run from about £5,000 to £8,000 depending on roof access, inverter choice and region [STAT: verify 2026 install-cost range from MCS / Energy Saving Trust]. Solar panel installations in Great Britain currently carry 0% VAT, which knocks a meaningful chunk off the bill [STAT: confirm the zero-rate VAT relief is still in force in June 2026 and its end date].
What it generates
A 4 kWp array in the south of England produces in the region of 3,400–3,800 units of electricity a year; further north, expect 10–20% less [STAT: confirm regional generation figures, MCS/EST]. Output is strongest April to September and weakest in the short, low-sun days of December and January — which is worth remembering, because it does not line up neatly with when you use the most heating.
What the payback looks like
Put the pieces together and a well-sited 2026 install without a battery typically pays for itself in around 8 to 12 years, then keeps saving for the 15–25 year life of the panels [STAT: model payback at current import/export rates before publishing]. Panels degrade slowly — most carry a performance warranty guaranteeing roughly 85–90% of original output at year 25. The inverter is the part most likely to need replacing first, usually after 10–15 years, at a cost of several hundred pounds.
Do you need a battery?
A home battery stores your midday surplus so you can use it in the evening instead of exporting it cheaply and then buying it back expensively. It pushes self-consumption from around 40–50% up towards 70–80%, which is exactly the metric that matters in 2026. The catch is cost: a battery can add £3,000–£6,000 to the project [STAT: verify 2026 battery cost band], which lengthens overall payback even as it increases annual savings.
The case for a battery is strongest if you are on a time-of-use tariff that lets you charge cheaply overnight and avoid peak rates, if you are out during the day, or if you run an electric vehicle. If your household is busy at home through the daytime — someone working from home, appliances running while the sun is up — you may capture most of the value without one. Do not let an installer bundle a battery in by default; ask them to quote with and without, and to show you the payback on each.
What solar does to your EPC and your home value
Solar panels improve your EPC rating because the assessment rewards on-site renewable generation. For a home sitting on the C/D borderline, a solar array can be the cheapest way to nudge into a higher band, which matters more every year as lenders price green mortgages and as minimum-EPC rules tighten across the rental and sales market [STAT: confirm 2026 status of any minimum-EPC requirements for owner-occupiers].
On resale value the picture is less clear-cut. Owned panels (not leased) are generally seen as a modest plus by buyers who understand the bills they will save; leased or rented-roof arrangements from the old FIT era can complicate a sale and put some buyers off. If you are likely to move within a few years, weigh the payback period honestly against your timeline.
What to do in the next 30 minutes
• Find your latest electricity bill and note your unit rate (p/kWh) and your annual usage (kWh) — these two numbers decide whether solar pays for you.
• Look at your roof on a map: which way does the largest pitch face, and is it shaded by trees, chimneys or neighbouring buildings between roughly 10am and 4pm? South, east and west all work; heavy shade kills the maths.
• Check whether your home is in a conservation area or listed — if so, you may need planning permission rather than relying on permitted development [LINK: related-guide].
• Use the Energy Saving Trust solar calculator to get a rough generation and savings estimate for your postcode before you speak to anyone [LINK: pillar-in-same-cluster].
• Line up quotes only from MCS-certified installers — MCS certification is what makes you eligible for a Smart Export Guarantee tariff in the first place.
If you do go ahead, keep your MCS certificate, your DNO connection confirmation and your inverter readings in one place from day one — you will need them for your SEG application and for any future buyer. You can track solar performance in Home+ alongside your EPC and the rest of your home record, so the numbers are there when you need to prove them [LINK: Home+ sign-up].
Frequently asked questions
Are solar panels still worth it now the Feed-in Tariff has ended?
For most owner-occupied homes, yes — but the savings now come from using your own generation rather than from subsidy payments. With grid electricity at price-cap rates, every unit you use off your roof is worth far more than the few pence you get for exporting it. The payback is slower than in the FIT era but still positive over the panels’ life [LINK: related-guide].
How much can I earn from the Smart Export Guarantee?
The SEG pays only for electricity you export, at a rate set by your supplier — typically a few pence to mid-teens of pence per unit in 2026. It is a useful top-up, not the main event. You must use an MCS-certified installer and apply to an SEG-licensed supplier to qualify.
Do I need planning permission for solar panels?
In most cases no — domestic roof panels usually fall under permitted development. The main exceptions are listed buildings and some conservation areas, where you should check with your local planning authority before ordering [LINK: gov.uk planning portal guidance on solar].
Will solar panels work on a north-facing or shaded roof?
North-facing roofs generate far less and rarely pay back well. East and west roofs work fine, producing a flatter curve across the day that can actually suit self-consumption. Shade from trees or chimneys in the middle of the day is the bigger problem — even partial shading can cut output sharply unless the system uses optimisers or microinverters.
Is it worth adding a battery in 2026?
It depends on when you use electricity. A battery raises the share of your own generation you actually use, which is the figure that drives savings, but it adds several thousand pounds. It pays best for households that are out during the day, on a time-of-use tariff, or running an EV
