Finding the UK’s Solar Sweet Spot
At SolarTherm UK, we’ve looked at regional sunshine levels, installation trends and real world performance data to discover where solar panels deliver the best results across mainland Britain in 2025. So which county came out top for solar power generation and savings?
The Best County for Solar Panels in the UK: Kent
Kent’s combination of sunshine, smart homeowners and strong local adoption makes it one of the best regions in the UK for solar power. Often called the Garden of England, Kent enjoys some of the highest sunshine levels in the country – up to 30% more sunlight than the national average in some areas. That extra daylight means more clean energy, greater efficiency and higher savings for solar households.
In Ashford alone, over 8.3% of homes now have solar panels, well above the UK average of 4.6%. Modern solar systems offer higher efficiency, lower installation costs and the option to add solar battery storage, offering Kent homeowners a smart investment option that pays off long term.
Even in the less sunny areas surrounding Kent, solar still works brilliantly. Today’s solar PV systems generate power from daylight, not just direct sunlight. Even under cloudy skies, your solar panels will still work hard to generate electricity.
Are Solar Panels Worth it in Kent?
Absolutely, based on solar irradiance and photovoltaic (PV) potential data, Kent consistently ranks among the top performing counties in the UK for solar energy. Across the country, the available solar energy ranges from 750-1,100 kWh per square meter per year. Kent consistently falls at the higher end of that scale, meaning stronger returns and shorter payback periods for homeowners. Homeowners in the wider South East also benefit from the higher levels of sunlight, being in the higher levels of the scale for solar generation.
For even greater efficiency, pair your solar panels with solar battery storage to maximise self-consumption of the free electricity your panels are producing. Solar panels generate electricity during the day; your battery stores any excess for later. Together they form a powerful low carbon duo that cuts bills and reduces emissions year-round.
How Much Can You Save with Solar Panels in Kent?
Kent homeowners can enjoy significant annual savings. While the exact figure depends on your system size, energy usage and lifestyle, most homeowners see electricity bills savings up to 70%. Kent and the surrounding South East’s sunnier climate provides a natural advantage making a solar investment a smart move.
Kent’s Solar Energy Output
Homes across Kent are estimated to generate over 146 GWh of solar energy each year, enough to:
- Power the London Eye for almost 300 years
- Drive an electric car around the world over 22,000 times
That figure doesn’t even include commercial systems, solar farms or uncertified systems, so the real total is even higher.
Reducing Carbon Emissions in Kent
Kent’s household solar panels collectively save over 29,000 tonnes of CO₂ per year, the equivalent of planting over 1.2 million trees. Each new solar installation helps the county move closer to true energy independence, reducing reliance on fossil fuel produced electricity and building a cleaner, greener future for generations to come.
Future Proof Your Home with SolarTherm UK
At SolarTherm UK, we help homeowners across Kent and the wider South East make the most of renewable technology. From high efficiency solar panels to smart battery systems, we design and install solar solutions that deliver long term savings and sustainability.
Contact SolarTherm UK today for a free, no obligation quote and design, tailored to your property, usage and future energy needs. No hard sell, just honest, expert advice.
Your home. Your energy. Your future.
