Solar Panel Cost in Missouri (2026)
In Missouri, home solar installs for roughly $2.65/watt in 2026. A typical 8 kW system runs about $21,200, with an estimated payback near 15.1 years at the state's ~13¢/kWh electricity rate.
| System size | Est. cost | Est. annual savings | Payback |
|---|---|---|---|
| 6 kW | $15,900 | $1,100/yr | 15.1 yrs |
| 8 kW | $21,200 | $1,400/yr | 15.1 yrs |
| 11 kW | $29,200 | $1,900/yr | 15.1 yrs |
Estimates use ~$2.65/watt installed and Missouri's ~13¢/kWh rate. Before any state/local incentives.
Missouri solar notes
Missouri guarantees retail-rate net metering by statute (up to 100 kW) and Ameren/Evergy offer periodic solar rebates, aiding payback despite low rates.
Heads up: the 30% federal tax credit for purchased home solar ended Dec 31, 2025. Leased/PPA systems may still qualify through 2027, and Missouri may offer its own incentives — check locally.
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