Missouri is one of the last states where a surplus kilowatt-hour earns the full retail rate. That single fact shapes everything about solar economics here. This brief covers the utilities, the net-metering rules, the pending rate cases, and the incentive picture — researched September 2026.
New to the basics? Start with our Missouri solar guide, then come back — this page is the market layer underneath it.
The Utilities That Shape Your Bill
Ameren Missouri serves St. Louis; Evergy Missouri Metro and Missouri West serve Kansas City; Liberty Utilities covers other territories. All are regulated by the Missouri Public Service Commission.
What Happens to Your Surplus Power
The Net Metering and Easy Connection Act provides 1:1 retail-rate netting within the billing month — your surplus earns the same rate you pay, a deal most states have dismantled. Banked kilowatt-hour credits carry forward, though industry sources report they expire uncompensated 12 months after issue.
Two design constraints to know: residential systems are capped at 100 kW, and Evergy sizes systems to your prior 12 months of usage — with no allowance for future load like an EV. Evergy is also piloting battery and time-of-use programs, a signal of where rate design is heading.
Where Missouri Rates Are Headed
Two increases are filed and pending. Ameren filed June 26, 2026 for about +$13/month for the average residential customer, effective mid-2027 (PSC decision due May 2027). Evergy Missouri Metro filed for +14.9% (about +$17.70/month), effective January 2027.
For honest context: Evergy notes its Missouri Metro residential rates actually fell about 1% since 2017 and sit roughly 15% below neighboring Midwest states. The increases are real, but Missouri starts from a reasonable base.
Incentives on the Table in 2026
The federal picture changed at the end of 2025, and any honest 2026 market brief has to start here: the 30% residential clean-energy credit (Section 25D) expired for homeowner-owned systems placed in service after December 31, 2025. The direct federal credit for a purchased residential system in 2026 is 0% unless Congress enacts new legislation. Third-party-owned systems — leases and power-purchase agreements — may still qualify under Section 48E through 2027, but the installer or lessor must pass that value through to you, so read any lease or PPA contract carefully.
This is general information, not tax advice. Talk with a tax professional about your situation.
At the state level: no statewide residential solar rebate or credit. (A 2025 property-tax law sometimes mentioned online was written for utility-scale systems — not a homeowner benefit.) Installed costs indexed around $2.66/W in early 2026. The headline “incentive” in Missouri is the policy itself: full retail net metering.
Why Now, Honestly
- Full retail net metering is still intact. The honest framing is “still available,” not “about to expire” — but it is the headline policy reason to look at solar now, while the terms are this good.
- Two announced increases to hedge. Evergy's January 2027 and Ameren's mid-2027 filings are both pending — installing now locks in your generation cost before known future hikes land.
- Rates are heading time-of-use. Evergy's battery and TOU pilots point to where the value is moving; solar plus storage positions you for it instead of chasing it later.
Missouri in 2026 is a rare combination: the country's best net-metering terms and visible rate increases on the calendar. We will size your system to your 12-month history and model storage against the pilots.
How We Design for Missouri
We size Missouri systems to your 12-month usage history to fit utility rules, keep exports inside the monthly netting window, and model batteries against Evergy's time-of-use pilots — not against generic assumptions.
Our Missouri Service Areas
Bright Solar serves homeowners and businesses across Missouri, including Kansas City, St. Louis, Springfield, and Columbia. These are areas we serve — our office is in Houston, Texas, and we do not claim offices in any of these cities. Reach us at (888) 996-1308.