With electricity prices still well above where they were a few years ago, more London homeowners and businesses than ever are asking a simple question: how much could solar panels actually save me? The honest answer is that it depends on your property — but the savings are often significant, and a proper survey is the only way to get an accurate figure.
What drives your solar savings
Three things matter most. First, how much electricity you use and when you use it — the more you can consume during daylight hours, the more of your own free solar power you use directly. Second, the size and orientation of your roof, which determines how much your system can generate across the year. Third, your current tariff and whether you add battery storage to capture surplus energy for the evening.
Why daytime usage is key
Every unit of solar electricity you use yourself is a unit you do not have to buy from the grid. Households that are home during the day — or businesses that operate 9 to 5 — tend to see the strongest returns, because their demand lines up neatly with peak solar generation.
Where battery storage fits in
If most of your usage is in the morning and evening, a battery lets you store surplus daytime generation and use it later, rather than exporting it cheaply. For many London homes this meaningfully increases the proportion of solar energy they actually use, improving overall savings.
Do solar panels work in cloudy UK weather?
Yes. Modern panels generate from daylight, not just direct sun, so they still produce power on overcast days — just at a lower rate. A well-designed system accounts for typical London conditions across the seasons.
Get an accurate figure for your property
Solar savings vary by property, system size, usage, weather, installation quality and energy tariff, so the best next step is a free survey. Book a free solar survey with Best Renewables Ltd and we will give you a tailored estimate based on your roof and your real usage.