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Both calculators run independently β€” change the inputs on either side to compare results.

Solar Energy

Solar Inverter Size Calculator

Estimates the recommended AC inverter rating for a solar array based on DC capacity, target DC-to-AC ratio, and headroom for future expansion. Useful for new-system design, retrofit planning, and matching inverter specs to anticipated panel additions.

Fill in the required fields to see your result.
Solar Energy

Solar Inverter Sizing Calculator

Determines the right inverter size for a solar array by factoring in panel capacity, orientation, climate, and DC:AC ratio. Use this when designing or auditing a rooftop or ground-mount solar system.

Fill in the required fields to see your result.

Key differences

Solar Inverter Size CalculatorSolar Inverter Sizing Calculator
CategorySolar EnergySolar Energy
Inputs required34
ResultRecommended Inverter Size (W)Recommended Inverter Size (W AC)
What it doesEstimates the recommended AC inverter rating for a solar array based on DC capacity, target DC-to-AC ratio, and headroom for future expansion. Useful for new-system design, retrofit planning, and matching inverter specs to anticipated panel additions.Determines the right inverter size for a solar array by factoring in panel capacity, orientation, climate, and DC:AC ratio. Use this when designing or auditing a rooftop or ground-mount solar system.