Low clouds can block light from the sun, which means less solar energy. However, certain cloudy conditions can actually increase the amount of light reaching solar panels. Weather satellites such as those in the GOES-R Series keep an eye on these clouds, which can help scientists make predictions about the capture of solar energy.
https://www.nesdis.noaa.gov/about/k-12-education/atmosphere/how-do-clouds-affect-solar-energy