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Is solar worth it in Manchester? Real payback figures for 2026

By Rob, CompareEcoQuotes · Figures checked 21/10/2026 · No affiliate links: we don't sell panels or earn commission from manufacturers

Most solar adverts promise payback in "as little as 7 years". In Greater Manchester and the wider North West, the honest answer for a typical home is longer than that, but solar can still be worth it, especially if you make a few smart choices.

Here are the real numbers.

The short answer

For a typical 4kW system on a Manchester home using about 2,700 kWh of electricity a year:

Roof facesGenerates per yearSaving per yearSimple paybackWith a premium export tariff
Southabout 3,800 kWhabout £49013–17 yearsabout 10 years
South-east / south-westabout 3,600 kWhabout £46514–18 yearsabout 11 years
East / westabout 3,100 kWhabout £40016–21 yearsabout 12–13 years

Solar only, no battery. Indicative figures. See "How we worked it out" below.

Solar panels typically last 25 years or more, so even a 14–18 year payback means many years of savings afterwards. But it's a long-term investment, not a quick win.

Why paybacks are longer than the adverts suggest

  • Less sun than the south. The North West generates a little less per panel than southern England, and that's what many national figures are based on.
  • You can't use all your solar power yourself. Without a battery, a typical home uses about 40% of what it generates. The rest goes to the grid.
  • Standard export rates are low. Many standard Smart Export Guarantee tariffs pay just 2–6p per kWh for the electricity you send to the grid. Adverts often assume much higher rates.

Five ways to make solar pay back faster in Manchester

  1. Get a better export tariff. Some suppliers pay 15–25p per kWh to their own customers. On a south-east or south-west roof, that cuts payback from about 14–18 years to about 11. It's the biggest single lever.
  2. Use more of your power during the day. Run the washing machine, dishwasher or EV charging while the sun's up.
  3. Consider a battery carefully. On our standard assumptions, a battery raises yearly savings (about £700 rather than £465) but adds £3,500–£7,000 to the cost, so payback doesn't improve much. Batteries look much better on time-of-use tariffs, where you charge cheaply overnight and avoid peak prices, which our basic figures don't include.
  4. Get more than one quote. Prices for the same system vary a lot between installers. Compare price per kW, panel and inverter brands, and warranties.
  5. Act before 31/03/2027 if you're ready anyway. Solar and batteries are currently at 0% VAT. That rises to 5% from 01/04/2027, which would add a few hundred pounds to a typical system.

When solar may not be worth it for you

  • Heavily shaded roofs, or roofs facing north.
  • If you plan to move within a few years, although solar may add some value to your home.
  • If your roof needs replacing soon. Do that first, because removing and refitting panels costs extra.
  • If you rent or live in a flat. Rooftop solar usually isn't an option, but a plug-in solar kit might be. Since 27/08/2026 you can install one yourself, and it typically pays back in 4–5 years. See our guide: Plug-in solar vs rooftop solar in the North West.

How we worked it out

  • Electricity price: 26.32p per kWh, the Ofgem price cap from 01/10/2026 to 31/12/2026.
  • Sunlight: EU PVGIS data for the North West, about 950 kWh per kW of panels for a south-facing roof, 900 for south-east or south-west, and 770 for east or west.
  • Your use: about 2,700 kWh a year, Ofgem's typical medium household figure, with 40% of solar used at home without a battery and 70% with one.
  • Export: 4p per kWh standard, with 15p used for the premium tariff scenario.
  • Costs: £6,500–£8,500 fitted for 4kW (typical 2026 prices, 0% VAT), and £3,500–£7,000 for a battery.
  • Simple payback means cost divided by yearly saving. It doesn't include future price changes, panel ageing or finance costs.

Your own figures will depend on your roof, shading, usage and tariff.

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