Solar Panel ROI Calculator
Calculate solar panel costs, savings, and ROI. Get payback period, lifetime projections, and environmental impact estimates.
Solar Configuration
Location & Rate
System Configuration
Best output near 30°
Financial Inputs
Paid on exported surplus
Battery Storage (Optional)
Financial Assumptions
Payback Period
5 years 7 months
Lifetime Savings
$56,475.00
Return on Investment
448.2%
System
6 kW
15 panels
Annual Production
9,000 kWh
Annual Savings
$2,160.00
Net Cost
$12,600.00
Incentives Applied
- Gross system cost
- $18,000.00
- Federal tax credit (30%)
- −$5,400.00
- State tax credits
- −$0.00
- Local rebates
- −$0.00
- Net cost
- $12,600.00
Year-by-Year Projection
| Year | Production (kWh) | Annual Savings | Cumulative Savings |
|---|---|---|---|
| 1 | 9,000 | $2,160.00 | $2,160.00 |
| 6 | 8,777 | $2,383.00 | $13,621.00 |
| 11 | 8,560 | $2,630.00 | $26,268.00 |
| 16 | 8,348 | $2,902.00 | $40,222.00 |
| 21 | 8,141 | $3,202.00 | $55,619.00 |
| 25 | 7,980 | $3,464.00 | $69,075.00 |
CO₂ Avoided (lifetime)
102.1 tons
Trees Equivalent
5,103
CO₂ Avoided / yr
4.1 tons
Estimates only — not financial advice. Production uses regional sun-hours, orientation, and tilt derates; savings assume 70% on-site consumption with the remainder exported at your net-metering rate. Actual output, incentives, and utility policies vary. Get quotes before purchasing.
Frequently Asked Questions
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