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Project estimation calculators with industry-typical coverage values you can adjust to your materials.

Electricity Cost Calculator

Calculate the daily, monthly and yearly running cost of an appliance from its wattage, hours of use and your electricity rate.

Estimate annual solar savings, energy generation and payback period from system size, peak sun hours, system losses and electricity rate.

Calculate energy use in kilowatt-hours (kWh) and the resulting cost from an appliance's wattage, hours of use and electricity rate.