Cromwell Solar
- Installing solar in Kansas since 1982, longer than any peer
- NABCEP-certified owner leading 40+ full-time staff
- Built Fort Riley's 10.5 MW project spanning 1,200+ homes
- Battery backup, generators and EV chargers alongside solar
Missouri solar depends on which side of the state you call home. Kansas City's Evergy nets exports one-to-one at retail; St. Louis' Ameren credits them at avoided cost, 5.39¢ in summer and 3.92¢ in winter. Same statute, wildly different math, and most quotes never mention it. EcoGen America starts every Missouri conversation with one question: which utility bills you?
Get your feasibility score, cost estimate & installer matches.
On the Kansas City side, Evergy credits exported solar one-to-one against your usage, genuine net metering that makes system sizing forgiving and paybacks straightforward.
On the St. Louis side, Ameren settles exports at avoided cost: 5.39¢/kWh in summer, 3.92¢ in winter, roughly a third of retail. An Ameren system must be designed for self-consumption or it donates its surplus.
The rest of the state falls to cooperatives and municipals running their own versions, some generous, some minimal. No statewide answer exists; only your utility’s answer.
EcoGen America identifies your territory, models at its actual export treatment, and matches you with installers who work your side of Missouri weekly.
Installers working Evergy and Ameren interconnections, plus the co-op patchwork between them.
Built-in checks for Ameren quotes wearing Evergy math, oversized StL-side arrays and dead-credit lines.
The export rate difference across Missouri is 3x. We model on your utility's filed treatment, always.
Your information goes only to the installers you choose to hear from. Nothing is resold.
EcoGen is 100% free for homeowners. We earn a small referral fee from installers only when you choose to proceed with a project through our platform.
This fee comes from the installer’s marketing budget and does not increase your system price. In fact, our pre-negotiated rates often save you money compared to going direct.
The same panel earns very different money across the state line inside Missouri:
Program Detail | Evergy (Kansas City) | Ameren (St. Louis) |
|---|---|---|
Export crediting | One-to-one against usage at retail value | Avoided cost: 5.39¢ summer, 3.92¢ winter |
Sizing tolerance | Forgiving; modest overshoot keeps value | Strict; overshoot sells at a third of retail |
Battery case | Backup value mainly | Strong: converts 4-5¢ exports into 12¢ offsets |
A quote that does not name your utility is not a quote; it is a brochure. The 3x export gap decides everything downstream.
Evergy, Ameren, co-op or municipal: your utility is the single biggest variable in Missouri solar. Establish it first.
Evergy territory can size generously; Ameren territory sizes to daytime usage or pairs a battery. Different playbooks.
Make the projection show your utility's actual export rate, seasonal split included on the Ameren side.
Free 15-minute call. Territory, treatment, honest numbers.
Outside the Evergy and Ameren footprints, Missouri”s electric cooperatives and municipal utilities each write their own solar rules. What to know before quoting rural Missouri:
Missouri rewards the homeowner who does 20 minutes of utility homework before taking a single quote. That homework is exactly what we help with.
Missouri Contract Checks
A split state invites copy-paste quoting. These four lines catch it.
Evergy math on an Ameren house overstates export value 3x. The projection must name your utility.
Ameren-side overshoot sells at 4-5¢. Evergy-side sizing can breathe. The design should reflect which.
Missouri has no state credit and the federal residential credit ended December 2025.
The cash anchor exposes dealer fees folded into financed totals.
Four checks, either Missouri. Honest installers pass all four in one sitting.
Vetted for Missouri coverage, Evergy and Ameren interconnection experience and complaint history.
The honest disqualifiers, split-state edition:
Evergy-side homes and well-sized Ameren-side homes with real daytime load: Missouri”s math works, once it is computed for the right Missouri.
Priced against the honest band at your territory's real export treatment.
15 minutes, independent. Evergy, Ameren or co-op, and what each means.
Talk to a Missouri AdvisorNo obligation. 100% free service.
It depends on your utility. Evergy nets exports one-to-one at retail value; Ameren credits them at avoided cost, 5.39¢/kWh in summer and 3.92¢ in winter; cooperatives and municipals run their own versions.
Your utility, not your state, decides your solar math in Missouri.
For homes with genuine daytime usage, yes, sized tightly to consumption. Surplus sells at a third of retail, so the design must avoid overshoot or pair a battery to shift afternoon production into the evening.
Oversized Ameren-side arrays are the most common Missouri mistake we see.
Evergy’s one-to-one crediting makes the KC side one of the friendlier Midwest markets: sizing is forgiving and paybacks track your full retail rate.
Standard checks still apply: honest pricing, no dead credits, and a roof with life left in it.
No state credit, and the federal residential credit ended in December 2025.
Missouri paybacks rest on your utility’s export treatment and honest sizing, which on the Evergy side remains a genuinely good deal.