Most solar professionals recommend sizing your inverter for solar panels between 75% and 115% of your total panel wattage, with the sweet spot around 1:1. What Does a Solar Inverter Do? How Many. . Choosing the right solar inverter size can make or break your solar investment. Get it wrong, and you'll either waste money on oversized equipment or lose precious energy production. Your solar inverter serves as the. . A question to ask: How close should the inverter rating be to the panel wattage? Ideally at 80–110%, to compensate for panel overproduction in bright sunlight and to avoid compromising inverter efficiency. Inverter Size = MAX (Array Capacity × 1.
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