This is a planning model, not a market quote. Change $/W to match a local installer quote. State production uses our fallback planning yield; the main calculator can replace it with ZIP-specific PVWatts data.
Compare solar cost by state
See current marketplace cost-per-watt benchmarks alongside transparent 6 kW and 8 kW planning prices, residential electricity rates and solar-yield context for all 50 states.
Quick planning table at $2.60/W
| System size | Planning cost | 430 W panels |
|---|---|---|
| 4 kW | $10,400 | 10 |
| 6 kW | $15,600 | 14 |
| 8 kW | $20,800 | 19 |
| 10 kW | $26,000 | 24 |
| 12 kW | $31,200 | 28 |
| 15 kW | $39,000 | 35 |
These transparent planning values use the current national marketplace benchmark before incentives, financing costs, batteries, roof work or electrical upgrades. State-specific benchmarks are available in the 50-state comparison.
Cost guides by system size
For SEO and homeowner comparison, each guide shows several cost-per-watt scenarios instead of presenting one planning assumption as a market quote.