Solar Panel Cost in Illinois
Estimated 2026 installed range: $10,200 – $14,300
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Open the calculatorCost by system type in Illinois
| Option | Low | High |
|---|---|---|
| 4 kW (small home) | $10,200 | $14,300 |
| 6 kW (average home) | $15,300 | $21,400 |
| 8 kW (larger home) | $20,400 | $28,600 |
| 10 kW (high usage) | $25,500 | $35,700 |
| 12 kW+ (EV / all-electric) | $30,600 | $42,800 |
Local cost factors
Statewide drivers: Midwest conditions and local labor rates. In Illinois, county health departments enforce strict setback distances.