> when it’s the hottest, solar panels generate the most energy That's not true. > It may seem counterintuitive, but solar panel efficiency is negatively affec

> when it’s the hottest, solar panels generate the most energy That's not true. > It may seem counterintuitive, but solar panel efficiency is negatively affected by temperature increases. Photovoltaic modules are tested at a temperature of 25° C - about 77° F, and depending on their installed location, heat can reduce output efficiency by 10-25%. As the solar panel's temperature increases, its output current increases exponentially while the voltage output decreases linearly. In fact, voltage reduction is so predictable that it can be used to measure temperature accurately. [0] > Home solar panels are tested at 25 °C (77 °F), and thus solar panel temperature will generally range between 15 °C and 35 °C during which solar cells will produce at maximum efficiency. However, solar panels can get as hot as 65 °C (149 °F), at which point solar cell efficiency will be hindered. [1] [0] https://www.greentechrenewables.com/article/how-does-heat-affect-solar-panel-efficiencies https://www.greentechrenewables.com/article/how-does-heat-af... [1] https://www.energysage.com/solar/solar-panel-temperature-overheating/ https://www.energysage.com/solar/solar-panel-temperature-ove...