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Solar calculators

Estimate savings, system capacity, payback, battery needs, panels, and roof area.

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Choose a tool and follow the clear inputs, estimate, and assumptions.

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Solar savings calculator

Estimate system size, installation range, savings, and payback for a Philippine property.

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Solar system size calculator

Estimate recommended kW, panel count, generation, roof area, and cost.

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Solar payback and ROI

Compare cash and financing-adjusted solar payback.

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Solar battery size calculator

Estimate usable and nominal battery capacity, inverter size, runtime, and budget.

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Panel count and roof area

Check how many panels fit and whether the roof is large enough.

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Solar tool publishing standards

SolarGabay now keeps only calculators that directly support electricity understanding and solar decisions. Unrelated business, farming, and construction tools have been removed.

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