Solar Panel Cost Calculator
Estimate solar panel system cost and payback period.
100% Free2026 UpdatedNo Signup
Solar Panel Cost
What This Calculator Does
The Solar Panel Cost Calculator estimates the cost of installing a residential solar panel system based on your home size, energy usage, and 2026 US national average pricing. Enter your monthly electric bill and home size to get system size and cost estimates.
Solar panel installations have grown significantly, with federal tax incentives (30% Investment Tax Credit) making systems more affordable in 2026. System costs have decreased approximately 70% over the past decade, making solar increasingly accessible for US homeowners.
How to Use
- Enter your average monthly electric bill (check your utility statement).
- Enter your home square footage (used to estimate roof space).
- Select your roof type - asphalt shingle, tile, or metal.
- Select your state or region for local pricing adjustment.
- Click "Calculate" to see the estimated system size, cost, and payback period.
Reference Table
| Home Size | System Size | Before Tax Credit | After 30% Credit | Est. Payback |
|---|---|---|---|---|
| 1,200 sq ft | 5 kW | $12.5K-$17.5K | $8.8K-$12.3K | 7-10 years |
| 1,800 sq ft | 7 kW | $17.5K-$24.5K | $12.3K-$17.2K | 7-11 years |
| 2,400 sq ft | 9 kW | $22.5K-$31.5K | $15.8K-$22.1K | 8-12 years |
| 3,000 sq ft | 11 kW | $27.5K-$38.5K | $19.3K-$27K | 8-12 years |
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