The short answer: yes, but less
Solar panels work whenever there's daylight — they don't need direct sunshine. In a Leeds winter (November–February), a 4kW system generates roughly 80–150 kWh per month, compared to 400–500 kWh in June and July. That's 10–25% of peak summer output.
Why the drop? Fewer daylight hours (7–8 hours vs 16+ in summer), lower sun angle, and more cloud cover. But Leeds isn't as bad as you'd think — diffuse light on overcast days still generates meaningful power.
Month-by-month generation in Leeds
Based on MCS data for a 4kW south-facing system in West Yorkshire:
| Month | Generation (kWh) | % of annual total |
|---|---|---|
| January | 90 | 3% |
| February | 130 | 4% |
| March | 250 | 8% |
| April | 350 | 11% |
| May | 420 | 13% |
| June | 450 | 14% |
| July | 440 | 13% |
| August | 380 | 12% |
| September | 290 | 9% |
| October | 190 | 6% |
| November | 110 | 3% |
| December | 80 | 2% |
Total: roughly 3,180 kWh/year. About 75% of that comes between March and September.
Cold weather actually helps
Here's something counterintuitive: solar panels are more efficient in cold temperatures. Panel efficiency drops as temperature rises — a panel rated at 400W at 25°C might only produce 370W at 40°C. In a 5°C Leeds winter, that same panel produces 410–420W in direct sunlight.
The problem isn't cold. It's the lack of light. Short days and heavy cloud cover reduce irradiance, which matters more than temperature. But on those crisp, clear winter mornings? Your panels are actually working harder per photon than they do in July.
Snow and ice
Snow covering panels blocks generation completely, but it rarely stays long on angled panels — the dark surface heats up and slides snow off within hours. In Leeds, heavy snow that persists for days is rare. Don't climb on your roof to clear panels — the risk of injury far outweighs a few days of lost generation.
Ice doesn't damage modern panels. They're tested to withstand hail up to 25mm and temperature swings from -40°C to +85°C. Leeds winters are mild by comparison.
Making the most of winter solar
- Use electricity during daylight hours. Run the washing machine, dishwasher, and tumble dryer between 10am and 2pm when generation peaks.
- A battery helps. Store midday generation for the 4pm–8pm peak when you need it most.
- Keep panels clear. Fallen leaves in autumn and bird droppings year-round reduce output. An annual clean boosts winter performance by 5–10%. See our maintenance guide.
- Check your roof orientation. South-facing panels capture the most low-angle winter sun.
Winter generation won't power your entire home. But it offsets 20–40% of your winter electricity bill — and the other 8 months more than make up for it. Get quotes from Leeds installers for a system sized to your annual needs.