Solar panels are able to run in the rain, in most cases, because they are designed to capture and convert light into electricity. They will continue to generate power even during rainy or cloudy weather but it could be at a reduced efficiency.
In heavy rain solar panels generate 10 % – 20 % of their maximum generation. However, there are some mitigating factors to consider. For example, if the rainfall is light and steady, it may actually help keep the panels clean which could improve efficiency.
Diffuse Light: Even on cloudy days or during rain, sunlight is scattered in the atmosphere and still reaches the solar panels, though at a reduced efficiency. The technology behind solar panels has advanced significantly, allowing them to harness a broader spectrum of light and making them more resilient in various weather conditions.
Solar panel efficiency is measured by the amount of sunlight that hits the panel and is converted into electricity. Events like rain, snow, and hail can all reduce the amount of sunlight that hits the panel, which in turn reduces efficiency. In heavy rain solar panels generate 10 % – 20 % of their maximum generation.
While solar panels achieve peak performance in direct sunlight, they do generate electricity in cloudy and rainy conditions. This remarkable adaptability ensures that adopting solar energy is a robust and reliable choice, even in regions that experience diverse weather patterns. Is Direct Sunlight a Must for Solar Panels to Function?
Rainy weather should not be a deterrent when deciding if solar is right for you. Despite what you might think, rain isn’t a death knell for solar power. In fact, in many ways, rain can actually be helpful to your system. Solar panels are most efficient when they are clean and free of debris.