If your rented property was sitting empty, it would be your priority to get a tenant in. Your roof is the same – don’t leave it sitting there empty when it could be saving and earning money. Every day you don’t have solar installed is a day you are paying money to greedy energy supply companies and missing out on selling energy back to the grid.
The Average Cost of Electricity in the UK
Energy prices in the UK have been rising steadily since 2010, but in 2022 political unrest between Ukraine and Russia caused oil and gas prices to almost double after concerns about supply. The UK’s reliance on imported fossil fuels to produce electricity has caused prices to rise and remain volatile ever since, increasing the urgency for the UK to seek home grown renewable energy solutions.
The table below shows the average annual cost of electricity for a 3,600kWh household from 2017-2024.
| Year | Average bill in England & Wales |
| 2017 | £577 |
| 2018 | £629 |
| 2019 | £683 |
| 2020 | £688 |
| 2021 | £755 |
| 2022 | £1,410 |
| 2023 | £1,252 |
| 2024 | £1,122 |
Since we started installing solar at SolarTherm UK – over 15 years ago – the price of electricity has risen to almost 2.5 times higher.
Why the Time to Act is Now
Increasingly, SolarTherm UK is experiencing customers coming back to us months or even years after we quoted them for a solar PV installation. Delaying your solar PV install by even one month can be an expensive decision – especially during peak generation times like summer months. Take this customer for example:
Our customer completed install in June 2025 and in his first month he has generated 464.65kWh, saving almost £90 from self-consumption and earned a further £15 in SEG payments for exporting excess energy back to the grid. If he had delayed by a month, that would have been £105 less in his pocket.
Currently, most solar installs are paying for themselves within 5-7 years, payback is only increasing if you have either an oversized system or relatively low usage to start with.
Ready to Start Your Solar Journey?
Contact SolarTherm UK today, for a free bespoke design package, tailored for your property, usage and future energy needs. No hard sell, just honest, expert advice – we let the figures speak for themselves.
