The hidden financial perks of installing solar panels on your home

Beyond lowering bills, solar panels could help households improve long-term cost certainty and earn additional income under the UK’s Smart Export Guarantee scheme.

Solar panels
(Image credit: Peter Cade/ Getty Images)

TL;DR

  • Solar panels could lower household energy costs and help you earn money from exporting excess power.
  • The Smart Export Guarantee pays households for surplus electricity sent to the grid.
  • Greater reliability and extended warranties make solar a durable, long-term investment.
  • Flexible payment options can offer ways to spread the upfront cost.
  • Smart monitoring tools allow customers to track usage and increase returns.

This is where solar panels come in – enabling homeowners to generate their own electricity, reduce reliance on the grid, and tap into additional income streams.

1. Lower your electricity bills

E.ON Next solar panel systems

(Image credit: Moment/ Sakchai Vongsasiripat)

The immediate upside of installing solar panels in your home is the noticeable reduction in your monthly electricity bills. By generating your own power, you reduce your reliance on your energy supplier and can save up to £650 annually, according to the Energy Saving Trust. This can add up to thousands of pounds over time, as solar panels tend to last 25 to 30 years, depending on the size of the system and usage. If you want to maximise your savings, you can also consider investing in a solar battery. E.ON Next is currently offering customers up to £200 off new batteries.

Though installation costs might seem high, solar panels tend to pay for themselves within 10 to 13 years, letting you take advantage of their savings for comfortably over a decade after the pay-off period

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Location

Maximum payback period

London

12 years

Manchester

13 years

Aberystwyth

13 years

Stirling

15 years

Belfast

13 years

Source: Energy Saving Trust. Payback period includes export payments and is based on fuel prices as of July 2025 for England, Scotland and Wales.

2. Energy independence

Global energy markets have been anything but stable in recent years. Under the Ofgem energy price cap in the first three months of 2026, the average annual bill was £1,758. According to the House of Commons Library, though this was well below the peak of £2,380 under the Energy Price Guarantee from October 2022 to June 2023, it’s still 44% higher than what prices were back in the winter of 2021-22.

Solar panels offer a degree of insulation from such price shocks, which, over time, can provide both predictable bills and a measure of independence from external factors or suppliers. With solar energy, you can produce electricity during daylight hours, and with battery storage, even use it at night.

3. Sell extra energy back to the grid

Under the Smart Export Guarantee, households can earn money by exporting surplus electricity. This could be a way for homeowners to tap into a revenue stream that is particularly valuable during sunnier months. The amount you earn depends on how much solar-generated electricity you don’t use, and the rate you earn from your provider per kWh. With E.ON Next, you can get four tariffs – Next Export Exclusive v3 pays up to 13p per kWh, while Next Export Premium v3 offers a higher rate of up to 17.5p per kWh.

4. Reduce your carbon footprint

Solar panels provide a renewable source of power and a straightforward way to cut emissions. Each unit of solar electricity replaces power that may otherwise be generated from fossil fuels, meaning every kilowatt-hour you produce helps to reduce your impact on climate change. According to Energy Saving Trust, a typical home solar panel system could save around one tonne of carbon per year, depending on where you live – that’s roughly 3,600 miles of driving an ICE vehicle

5. Easy to install and low maintenance

E.ON Next solar panel systems

(Image credit: Getty Images)

Solar systems are relatively quick to install. According to E.ON Next, once the system-design and grid-application stages are completed by your installer, it only takes a day or two for the panels and electrical equipment to be installed and commissioned. Once installed, they require little maintenance, as there are no moving parts and many come with a 25+ year product warranty.

6. Get support from the government

There are various government grants and schemes to assist homeowners in improving the energy efficiency of their homes. One such benefit is the 0% VAT rate on domestic solar panel systems until March 2027, the Smart Export Guarantee, and the Warm Homes: Social Housing Fund, which delivers free solar panels and other green upgrades to homes with low energy efficiency ratings.

7. Charge your electric car with solar

Switching to an electric vehicle could save drivers around £1,100 per year on petrol and diesel costs, and you could also get government grants of up to £3,750 on brand-new EVs.

If you own an electric car, you may be able to charge your vehicle with solar energy – but you’ll need to first get a compatible EV charger. This not only generates clean, renewable energy, but it also lowers your energy costs and boosts long-term savings.

According to Pod Energy, the majority of EV charging takes place overnight, so you’ll be able to take advantage of lower unit costs and wake up to a fully charged battery each morning.

8. Boost the value of your property

E.ON Next solar panel systems

(Image credit: Moment/ Karl Hendon)

Solar installations could make properties more attractive to buyers as more people seek higher Energy Performance Certificate (EPC) ratings. It could future-proof your home from energy volatility while boosting its appeal factor.

There’s no denying that solar panels can act as a buffer against energy inflation and protect households from spiralling costs, which ultimately show up in their bills. The financial case is not only hard to ignore, but it also future-proofs your property for generations to come, offering greater long-term gains and the support to make an eco-friendly investment.