Missouri Solar Guide 2026
Everything Missouri homeowners need to know: costs, incentives, net metering policy, and what makes this state unique for solar.
Quick answer
Missouri solar economics depend mainly on 4.8 average peak sun hours, an estimated $2.8/W installed cost, 11.0¢/kWh electricity, and the state's current net-metering rules.
Reviewed 2026-07-26
- Best for
- Missouri homeowners comparing solar costs, incentives, and payback assumptions.
- Inputs needed
- annual kWh usage, utility rate, installed $/W, net-metering policy
- Formula used
- Typical production = system kW × peak sun hours × 365.
- Source checked
- state incentive data, utility tariff checks, Wattcrunch price benchmarks
Key fact about Missouri solar
Missouri has decent sun hours (4.8/day) and full retail net metering, but very low electricity rates (~$0.11/kWh) push payback to ~13 years. Solar is a long-term investment here rather than a quick-payback proposition.
Peak sun hours
4.8
hrs/day avg
Avg electricity rate
11.0¢
per kWh
Median install cost
$2.8/W
before incentives
Typical payback
13 yrs
8 kW system, avg usage
Typical 8 kW system in Missouri
Annual production
14,016 kWh
Year-1 savings
$1,542
System cost (est.)
$22,400
No federal tax credit — Section 25D expired December 31, 2025.
Missouri Net Metering Policy
Full retail net metering
Missouri requires full retail net metering for systems up to 100 kW under RSMo 393.106. Ameren and KCP&L must credit excess at retail. Annual settlement with unused credits bought back at avoided cost.
Missouri Solar Incentives
Available in addition to any utility rebates. Federal 25D credit is $0 for homeowner-owned systems from 2026.
- ✓Property tax exemption on added home value
- ✓No state income tax credit
Top Utilities in Missouri
Interconnection timeline: 4–8 weeks
State-specific decision guide
What to verify before signing a Missouri solar quote
In Missouri, the financial result depends on more than sunshine or the headline installation price. Confirm the export rule, program eligibility date, and interconnection timeline for your exact utility before treating a payback estimate as a promise.
Export value
This page models full retail net metering. Ask which tariff and export credit apply to your account, not only which program name appears in the proposal.
Incentive eligibility
Check equipment, income, installer, application, and placed-in-service rules before subtracting an incentive from the quote. Programs can close or change terms.
Interconnection
Budget for the published 4–8 weeks and confirm who pays for a required meter, service upgrade, or engineering review.
Source trail: production assumptions use NREL PVWatts; incentive discovery should be checked against DSIRE; electricity-market context is available from the EIA. Confirm final tax treatment with the IRS and your utility.
Calculate your Missouri solar economics
Our calculators are pre-filled with Missouri data. Run any tool below.