Solar Savings Calculator
Estimate annual savings and payback period for a home solar system.
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What This Calculator Does
Estimate annual savings and payback period for a home solar system.
It combines System Cost, Annual Production, Utility Rate to estimate Annual Savings, Simple Payback.
Formula & Method
Core equations: Annual savings: S=(kWh_{offset}\cdot rate)-O\&M; payback =\frac{System Cost-Incentives}{S}.
Notation used in the formulas: R = Annual Savings; x_{1} = System Cost; x_{2} = Annual Production; x_{3} = Utility Rate.
Method summary: inputs are normalized to consistent units, core equations are evaluated, then secondary values are derived and rounded for display.
Use this calculator for quick scenario analysis. Start with baseline values, change one driver at a time, and compare how sensitive the results are to each input shown above.
Inputs Used
- System Cost: Used directly in the calculation.
- Annual Production: Used directly in the calculation.
- Utility Rate: Used directly in the calculation.
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