Solar Savings Estimator

Solar Calculator

See how much solar could offset your electric bill, estimate your system size, and project long-term savings with a clean, homeowner-friendly calculator.

Fast Savings Estimate
Reliable Outcome
High Quality
Built For
Homeowners
Estimate Type
Bill Offset + Savings
Style
Simple + Accurate
Enter Your Numbers

Estimate your solar savings












Selected: 25 years
This tool gives a practical estimate based on bill, rate, production, and cost assumptions. Final numbers should be refined with your actual roof layout, shading, utility tariff, and local incentives.
Your Results

Estimated solar impact

Estimated System Size
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Estimated Annual Production
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Year 1 Bill Offset
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Year 1 Savings
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Gross System Cost
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Estimated Incentive Value
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Estimated Net System Cost
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Projected Lifetime Savings
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Net Benefit Over Analysis Period
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Simple Payback Estimate
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Homeowner Snapshot
Enter your numbers and click calculate to see your estimated solar savings.
How This Calculator Works

Clean math. Clear assumptions. Useful homeowner insight.

1. Estimate Usage
Your monthly electric bill and utility rate are used to estimate annual electricity usage in kilowatt-hours.
2. Size The System
Peak sun hours, roof efficiency, and system losses are used to estimate how large a solar system would be needed to reach your target bill offset.
3. Project Savings
The calculator projects year-one savings, lifetime savings, incentives, and a simple payback estimate using your chosen financial assumptions.
Ready For The Real Numbers?

Let Define Solar turn this estimate into a real home proposal.

A true proposal should account for roof design, panel layout, shading, equipment selection, utility rules, and available incentives. This calculator gets the conversation started the right way.