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Think solar panels only work in sunny parts of the UK? New figures suggest otherwise.
A new analysis reported by The Guardian has highlighted just how effective rooftop solar can be across Britain, including some of the country’s cloudier regions.
According to the analysis, a typical 4kW solar PV system in Manchester could save an average household around £463 per year on electricity costs. In sunnier parts of southern England, estimated savings can rise above £600 per year.
The message is clear: you don’t need a Mediterranean climate to benefit from solar power.
It’s a question we hear regularly. Living in the North West, it is understandable to wonder whether our weather makes solar panels worthwhile. While we may not enjoy the same amount of sunshine as southern Europe, or even southern England, modern solar panels don’t need bright sunshine to generate electricity.
Solar panels generate electricity from daylight, meaning they continue to produce power on cloudy days. The amount they generate will vary depending on the weather, time of year, roof orientation, shading, and the size of the system, but the UK remains a perfectly viable market for solar PV. In fact, the North West has seen strong demand for solar installations as homeowners look for ways to reduce their reliance on electricity from the grid.
The economics of solar have changed significantly in recent years. Electricity prices remain a major household expense, while the cost of installing solar has fallen considerably compared with previous years. At the same time, more homeowners are looking at ways to use their own generated electricity rather than buying as much electricity from the grid.
The latest figures reinforce this trend. Government data shows that nearly 172,000 solar installations have been fitted across the UK since the beginning of 2026, with rooftop solar accounting for more than seven in ten installations during July.
Solar also supplied a record 14.4% of Great Britain’s electricity in July 2026, demonstrating how quickly solar generation is becoming part of the UK’s energy mix.
The important thing to remember is that there isn’t one saving figure that applies to every home. The Guardian’s analysis used a standard 4kW system and assumed that 50% of the electricity generated was used directly by the household. The estimated savings were approximately £463 per year for homes in the North West. Your actual savings could be higher or lower depending on your individual circumstances. Your household’s electricity consumption, roof orientation, shading, panel capacity, and when you use electricity can all make a significant difference.
This is why we recommend designing a solar system around your home and your energy usage, rather than simply installing a standard ‘one size fits all’ system.
One of the biggest developments in home energy has been the growth of battery storage alongside solar PV. Solar panels generally generate the most electricity during the daytime, but many households use most of their electricity in the morning and evening.
Without a battery, some of that daytime generation may be exported to the grid. A home battery allows you to store surplus solar energy and use it later, potentially increasing the proportion of your solar generation that you use yourself. It can be particularly useful for households that:
Modern battery systems, such as the Tesla Powerwall 3, can be intelligently managed around your homes electricity consumption and energy tariffs.
One of the biggest misconceptions about solar PV is that it needs blazing sunshine to be worthwhile. It doesn’t.
The UK receives plenty of daylight throughout the year, and modern solar panels are designed to generate electricity under a wide range of conditions. Generation is naturally higher during the longer, brighter days of spring and summer, but your system will continue producing electricity throughout the year.
The key is getting the system design right for your property. A south-facing, unshaded roof will generally produce more electricity than a heavily shaded or north-facing roof. Roof pitch, panel orientation, available roof space, and household consumption should all be considered before deciding which system is appropriate.
We design and install solar PV and battery storage systems for homes across the North West and North Wales. Rather than simply recommending a ‘one size fits all’ system, we look at your property, electricity consumption, and energy requirements to help determine what combination of solar panels and battery storage could work best for you.
With solar installations reaching record levels across Britain, the question for many homeowners isn’t whether solar works in the UK; it’s how much could you save by generating your own electricity.
Figures referenced in this article are based on published regional analysis and should be treated as indicative rather than a guarantee of individual savings. Actual generation and savings will vary depending on the property, system design, electricity usage, tariffs and other factors.
