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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 Panel Output Calculator

Calculate the daily energy output (kWh) of a solar panel from its rated wattage, daily peak-sun hours, and efficiency. Use it during system sizing or to estimate production from a specific panel under your local sunlight conditions.

Fill in the required fields to see your result.

Key differences

Solar Inverter Size CalculatorSolar Panel Output Calculator
CategorySolar EnergySolar Energy
Inputs required33
ResultRecommended Inverter Size (W)Daily Energy Output (kWh)
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.Calculate the daily energy output (kWh) of a solar panel from its rated wattage, daily peak-sun hours, and efficiency. Use it during system sizing or to estimate production from a specific panel under your local sunlight conditions.