![]() ![]() 4 Once their temperature rises above that peak temperature, solar panel performance decreases. In the winter, it’s also less likely for solar panels to reach their peak temperature, or peak power. That’s why solar cells produce electricity more efficiently when it’s colder. When these electrons are activated by increasing sunlight (high energy), a greater difference in voltage is attained by a solar panel, which creates more energy. Remember how electrons move around atoms? Electrons are at rest (low energy) in cooler temperatures. 2 A rechargeable solar battery can help store this electricity so you can still use solar energy at night, during peak electricity usage, or when the grid goes down. This creates an electric current, which is sent to your home’s electric distribution box to power your essential items. So, how do solar panels work? When sunlight photon particles hit solar panel photovoltaic cells, electrons in the silicon are put into motion. Any diminished output during the winter months will primarily be due to heavy snow and shorter daylight hours. 1 So long as sunlight is hitting a solar panel, it will generate electricity. In fact, cold climates are actually optimal for solar panel efficiency. That’s because solar panels absorb energy from our sun’s abundant light, not the sun’s heat. What’s the science behind solar panels and temperature?Įven in below-freezing weather, solar panels turn sunlight into electricity.
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