Solar Inverter Sizing Calculator

Solar Inverter Sizing

Calculate the correct solar inverter size based on panel array capacity, system voltage, temperature derating, and desired DC-to-AC ratio for optimal solar performance.

Solar Array Size (kW DC)

DC-to-AC Ratio

Inverter Type

Max Ambient Temperature (F)

Formula

Inverter kW = Array kW / DC-to-AC Ratio; Temp Derate = 1 - (Temp - 95) x 0.005 (if above 95F); Derated Size = Inverter kW / Temp Derate Factor; Annual Production = Array kW x 1400 hrs x System Efficiency

Frequently Asked Questions

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