Post by RWE

What’s the difference between sunlight and solar heat? More than most people think. A solar panel does not convert heat into electricity. It converts light, more precisely, photons in solar radiation, into electricity. When those photons hit silicon cells, they set electrons in motion. Heat is different. It warms the surface of the panel, and higher temperatures can actually reduce efficiency. That is why a cold, bright day can be better for a solar module than many people would expect. It is also the difference between photovoltaics and solar thermal energy. Both use the sun, but they harvest different properties: one turns light into electricity, the other captures heat. Across our solar portfolio, from northern Germany to southern Italy to Australia, our modules are designed to convert light efficiently, while managing very different climate conditions. Same sun. Different physics. Different engineering solutions.