It’s a common myth that renewable energy sources like solar and wind power can only function effectively on sunny and breezy days. However, this is simply not true. Solar panels and wind turbines are designed to generate electricity even in less-than-ideal weather conditions. Solar panels may produce less electricity on cloudy days, but they will still generate power as long as there is some ambient light available. “Even on a very cloudy or rainy day, you’ll get some electricity,” explains James Fenton, director of the Florida Solar Energy Center. “But on real cloudy days, you might only get half as much electricity as you would on a sunny day”.^[1] Rain can even help clean the panels, improving their efficiency. Similarly, wind turbines can operate in a wide range of wind speeds.

While very high winds may cause them to shut down for safety reasons, they are engineered to generate power even in relatively light breezes. The energy industry is also developing new methods for storing electricity and managing demand, further enhancing the reliability of renewable sources. The notion that renewable energy is weather-dependent is a persistent myth. Solar, wind, and other clean power technologies are designed to provide electricity regardless of cloud cover or wind speeds. While output may vary, these renewable sources can consistently contribute to the grid and reduce our reliance on polluting fossil fuels.

In conclusion, yes, solar panels work on cloudy days, but less effectively than on sunny days, typically producing between 10% and 60% of their usual power output depending on cloud thickness.^[2]

^[1] https://www.cnet.com/home/energy-and-utilities/do-solar-panels-work-when-its-cloudy/

^[2] https://www.solarreviews.com/blog/do-solar-panels-need-direct-sunlight