Everything UK Homeowners and Businesses Need to Know
If you are interested in solar energy, you might be wondering do solar panels work in winter, so might be concerned about your investment. While it’s easy to assume that solar panels might not work in the colder, cloudier months, the reality might surprise you. Solar panels are designed to capture sunlight, not heat, meaning they can still produce electricity during winter, even when temperatures drop or clouds cover the sky.
Here’s a closer look at solar panel performance during winter, addressing some common concerns and explaining why they’re a sound investment year-round.
Do solar work in the winter months?
The very short answer is, yes, solar panels do work in winter! And although production may be lower compared to the sunnier summer, they are still effective in generating electricity.
Solar panels rely on light rather than warmth to produce electricity, and colder temperatures can actually improve their performance. Here’s how it works: solar cells in the panels absorb photons (light particles) from the sun, which knock electrons loose in the cell, creating an electric current to generate energy. So, it’s the amount of sunlight, not the temperature, that primarily influences solar energy production.
While there are certainly fewer daylight hours and more cloudy days in winter, solar panels can still capture enough sunlight to make a difference in your energy bills. Let’s break down some key factors.
Key solar panel efficiency factors
Here are some factors that you might consider when deciding if solar panels are worth the investment over the winter:
Daylight hours
One of the biggest differences between summer and winter for solar energy is the number of daylight hours. Daylight lasts roughly 8 hours in the winter compared to 16 hours in midsummer. While this reduction does mean fewer hours for sunlight exposure, solar panels are still able to generate electricity whenever there’s daylight.
Cloudy days
We have plenty of cloudy days here in the UK, so it’s common for people to wonder if solar panels work on cloudy days. Many people assume that solar panels need bright, direct sunlight to function, but that’s not entirely true. Solar panels are capable of working even on cloudy days, albeit at a reduced output. Modern solar panels are designed to capture and convert indirect light into electricity. PV technology has advanced in recent years to the point where panels can operate efficiently in low-light conditions.
Snow
Winter conjures up images of snow-covered roofs, which might be a put-off if you are considering solar panels. But having blizzards of snow in the UK is actually quite rare! If there is a heavy downfall of snow, then you can easily brush the dusting of snow off.
So how effective are solar panels in winter?
Roughly speaking, solar panels lose about 25% – 50% of their efficiency during the winter months. This is mostly down to the shorter sunlight hours during the day and the cloudier days. So even though there is indeed a drop in productivity, solar panels still generate electricity over these months so would still be a sound investment and you will see the benefits in your energy bills!
Are solar panels a worthwhile investment year-round?
As discussed, solar panels produce energy throughout the year, even though their efficiency is lowered in the winter, they are still a great investment year-round. And don’t forget, solar panels last between 25 – 30 years, so they will provide plenty of energy for your home or business across plenty of summer and winter seasons!
Install Solar Panels with Orange Solar Systems
If you want to feel the benefits of solar power and get your journey started with renewable energy, then getting in touch with Orange Solar Systems is the best first step!
We are experts in installing solar panel systems and battery storage systems in the south of the UK. We have installed solar panels on both residential and commercial properties to help customers bring down their energy bills all year round.
