Multiple outlets address whether solar panels generate more electricity during extreme heat in the UK. The expert explanation presented across sources is that solar panels do not necessarily perform better in a heatwave. While sunlight is abundant during hot spells, high temperatures can reduce the efficiency of the panel cells. In general, solar panels convert a portion of daylight into electricity, and their output depends on both irradiance (the amount of sunlight) and operating temperature. As panels get hotter, their electrical performance can decline compared with cooler conditions under similar light levels. However, the overall power produced during hot weather can still be high if the heatwave brings clear skies and strong solar radiation, meaning more energy reaches the panels. The key point is that heatwave conditions involve a trade-off: increased solar intensity can help output, but overheating tends to lower efficiency. The sources therefore suggest that solar generation during heatwaves is not strictly improved by temperature alone; it depends on the combination of sunlight and how hot the panels become.