We need to understand that if sunlight is limited, so is energy production. On cloudy or rainy days, PV panels typically produce anywhere from 10% to 25% of their optimal capacity, experts say. * The amount of electricity your solar panels will generate will depend on the density of cloud coverage or extent of rain.
But if you have solar or are thinking about installing panels on your home, you may wonder what happens to the energy your solar system produces when it rains. The short answer: your solar panels will still capture and convert light into electricity during rainy or cloudy weather.
Reducing Electricity Bills: Even on cloudy or rainy days, solar panels can help in lowering electricity costs, making them a financially viable option in the long run. While their performance peaks in direct sunlight, solar panels have proven their ability to remain functional and efficient even in less-than-ideal weather conditions.
There are numerous examples of solar installations in cloudy or rainy climates that are successfully meeting energy needs. To give you a clearer picture, on a cloudy day, a solar panel might operate at around 10-25% of its maximum efficiency. However, this doesn’t mean that they stop contributing to your energy needs.
While solar panels can still work in dim light conditions, their efficiency is significantly compromised. The power output during rainy seasons may be insufficient to meet high energy demands. Rainy seasons often bring with them the harshest storms, including strong winds and heavy rains.
Dust, debris, and other residues tend to accumulate on the surface of the panels over time, obstructing sunlight and diminishing their efficiency. Rain helps by naturally cleaning away this buildup, ensuring that the panels maintain their optimal performance.