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The hottest part of the solar inverter

For most solar inverters, derating begins at around 45°C to 50°C (113°F to 122°F). When the temperature reaches this range, the inverter will gradually reduce its output to prevent overheating. It's called thermal derating, and it's the biggest silent killer of your energy harvest. Solar inverters are electronic. . Solar inverters detect when they're getting too hot and throttle back, converting less solar DC into AC electricity, which is a shame when you need that energy to run the air conditioning. [PDF Version]