Solar Savings Calculator
Estimate your solar panel costs, federal and state tax credits, payback period, and 20-year savings. Select your state, adjust your system size, and see how much you can save by going solar.
Solar Savings Calculator
$50$500
5005,000
3 kW15 kW
Select a state to see your solar savings estimate
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How to Use This Calculator
- Select your state to use local sun hours, costs, and incentive data.
- Enter your monthly electric bill to understand your current energy costs.
- Adjust system size based on your roof space and energy needs.
- Choose financing: Cash (buy outright), Loan (finance over time), or Lease ($0 down).
- View your estimated net cost, monthly savings, payback period, and 20-year savings.
Understanding Solar Costs
The cost of solar panels depends on system size, your location, and available incentives. The average 6kW residential system costs $17,000-$21,000 before incentives. The 30% federal solar investment tax credit (ITC) reduces this significantly. Many states offer additional credits, rebates, or SREC programs that further lower costs.
Key Factors Affecting Solar ROI
- Sun exposure: More peak sun hours means more energy production.
- Electricity rates: Higher rates mean faster payback and bigger savings.
- Net metering: Full net metering credits you at retail rates for excess power.
- State incentives: Tax credits and rebates reduce upfront costs.
- System size: Larger systems produce more energy but cost more upfront.
- Roof orientation: South-facing roofs in the Northern Hemisphere are ideal.
Data verified March 2026 · Source: NREL, DSIRE, EIA