Independent Solar Advisor • Updated July 2026

Solar Panels in
Missouri

Not in Missouri?

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?

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Evergy (KC Side) 1:1 Net Metering
Ameren (StL Side) 5.39¢ / 3.92¢ Exports
Retail Power Price ~11 – 13¢/kWh
Incentive Strength
Fair Price Range $2.55 – $3.25/W
About EcoGen America

In Missouri, the State Line Runs Through Your Meter.

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 cents in summer and 3.92 in winter.

Same statute, wildly different math, and most quotes never mention it.

On the Evergy side, standard net metering rules apply and sizing is forgiving. On the Ameren side, self-consumption carries the payback and batteries earn their keep.

EcoGen America starts every Missouri conversation with one question, which utility bills you, and designs from the answer.

Dean Mahmoud Written by Dean Mahmoud •  Last updated September 4, 2026
Our vetting process

Utility-First Guidance

Evergy nets at retail while Ameren pays avoided cost. We establish your side of the split before any sizing or payback talk.

Quote Analysis

Built-in checks for crediting quoted from the wrong utility, seasonal export rates on the Ameren side, and honest self-use assumptions.

Local Policy

We track Evergy and Ameren tariff filings and the avoided-cost rates that reset the St. Louis-side math each season.

Privacy First

Your data is only shared with the licensed Missouri installers you choose.

Trevor Guilday
Reviewed by Trevor Guilday, founder of EcoGen America · LinkedIn
Trevor has worked in home improvement and residential solar since 2016 and maintains the EcoGen Solar Cost Index.

Evergy vs Ameren: The 3x Gap in Missouri Export Value

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
Treatment per utility tariffs as of July 2026; cooperatives and municipals vary further. Confirm your utility’s current terms before signing.

A quote that does not name your utility is not a quote; it is a brochure. The 3x export gap decides everything downstream.

Identify, Design, Verify: Solar Across Missouri

1

Identify

Evergy, Ameren, co-op or municipal: your utility is the single biggest variable in Missouri solar. Establish it first.

2

Design

Evergy territory can size generously; Ameren territory sizes to daytime usage or pairs a battery. Different playbooks.

3

Verify

Make the projection show your utility's actual export rate, seasonal split included on the Ameren side.

Not sure which Missouri you are in?

Free 15-minute call. Territory, treatment, real numbers.

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Between the Giants: Missouri’s Co-op Patchwork

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:

  • Net-metering treatment varies co-op by co-op: some mirror one-to-one crediting, others settle monthly at avoided cost, and a few add solar-specific fees.
  • Interconnection paperwork is local: timelines and requirements differ enough that an installer’s experience with your specific co-op is worth asking about directly.
  • The design rule follows the rate: generous crediting tolerates bigger arrays; avoided-cost co-ops demand the self-consumption playbook.
  • Get the tariff in writing before signing. A one-page rate sheet from your co-op beats any installer’s verbal summary.

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

Missouri Quotes: Four Show-Me Checks

A split state invites copy-paste quoting. These four lines catch it.

Clause to verify: Find the export assumption and match it to your actual utility’s filed treatment, seasonal split included.
Clause to verify: Compare projected production to usage; on the Ameren side, challenge anything past ~100%.
Clause to verify: Ask for the payback with all credit lines removed; that is the real number.
Clause to verify: Both totals side by side, spread named, before signing.
Verify your paperwork

Four checks, either Missouri. Good installers pass all four in one sitting.

Check Missouri Price Fairness Find My Territory Rate

Missouri Installers on Both Sides of the Split

Vetted for Missouri coverage, Evergy and Ameren interconnection experience and complaint history.

1 Source Solar

NABCEP Certified Tesla Powerwall Certified 1,500+ Projects
Why Recommended
  • 1,500+ projects across Iowa and the Midwest since 2015
  • NABCEP-certified technicians; Tesla Powerwall certified installer
  • Solar Power World top-500 contractor nine years running
  • Ankeny-based turnkey design, install and service
Warranty
5-yr workmanship + manufacturer terms
Timeline
Quoted per project
Experience
11 Years
Service Area
Iowa & the Midwest

Good Energy Solutions

NABCEP Staff Tesla Powerwall Premier Best of KC 2026
Why Recommended
  • Lawrence-based since 2007, serving both sides of the KC metro
  • NABCEP-certified staff; Tesla Powerwall Premier and Enphase Gold
  • Maxeon Preferred Partner with 40-year panel coverage
  • Named Best Solar Provider in Kansas City for 2026
Warranty
Maxeon 40-yr panel coverage available
Timeline
Quoted per project
Experience
19 Years
Service Area
Kansas & Missouri (KC metro)

Cromwell Solar

Since 1982 NABCEP Owner-Led 40+ Employees
Why Recommended
  • 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
Warranty
Manufacturer warranties, 40+ yr firm
Timeline
Quoted per project
Experience
44 Years
Service Area
Kansas statewide

When Missouri Solar Should Hold Off

The disqualifiers, split-state edition:

  • Ameren-side homes with low daytime usage and no battery budget. Winter exports at 3.92¢ will not rescue the math.
  • Any quote that never names your utility. It was written for a different house, possibly a different state.
  • Payback models leaning on dead credits. Nothing state or federal remains for a 2026 Missouri purchase.
  • Hail-worn roofs near end of life. Missouri weather is real; re-roof first or budget the double handling.
  • Co-op customers without the tariff in hand. Sign nothing until your co-op’s actual solar treatment is on paper.

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.

Missouri Solar, Territory First

Missouri Solar Costs and the Twelve-Month Credit Clock
Cost

Missouri Solar Costs and the Twelve-Month Credit Clock
Missouri Solar Incentives: Retail Netting That Lasts One Month
Incentives

Missouri Solar Incentives: Retail Netting That Lasts One Month
Are Solar Panels Worth It in Missouri? The Credit That Expires
Investment

Are Solar Panels Worth It in Missouri? The Credit That Expires
Free Solar Panels in Missouri: 302 Megawatts, All Bought
Programs

Free Solar Panels in Missouri: 302 Megawatts, All Bought
Top 3 Solar Companies Across Both Missouris (2026)
Companies

Top 3 Solar Companies Across Both Missouris (2026)

1. Missouri quote on the table?

Priced against the market cost band at your territory's real export treatment.

OR

2. Want your territory confirmed first?

15 minutes, independent. Evergy, Ameren or co-op, and what each means.

Talk to a Missouri Advisor

No obligation. 100% free service.

Missouri Solar FAQs

Does Missouri have net metering?

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.

Is solar worth it in St. Louis (Ameren territory)?

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.

Is solar worth it in Kansas City (Evergy territory)?

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: fair pricing, no dead credits, and a roof with life left in it.

Are there Missouri solar tax credits?

No state credit, and the federal residential credit ended in December 2025.

Missouri paybacks rest on your utility’s export treatment and right-sizing, which on the Evergy side remains a genuinely good deal.

References & Research Sources

The rates, program terms and figures on this page come from the records below. Sources accessed between June 10, 2026 and August 20, 2026.

  1. Missouri Legislature. RSMo section 386.890, the Net Metering and Easy Connection Act. The obligation on all retail electric suppliers, the 100 kW ceiling, netting within each billing period, crediting of net excess at at least avoided fuel cost, the statutory definition of avoided fuel cost, and the 12-month credit expiry. Accessed August 20, 2026.
  2. Missouri Public Service Commission. 20 CSR 4240-20.065. The Commission’s implementing net metering rule. Accessed August 20, 2026.
  3. Missouri Public Service Commission (PSC). Case EE-2019-0056: Evergy Net Metering Terms. Evergy Missouri Metro and Missouri West treatment of net excess generation. Accessed June 11, 2026.
  4. U.S. Energy Information Administration (EIA). Electric Power Monthly, Table 5.6.A. Average residential electricity prices by state, March 2026 edition. Accessed June 10, 2026.
  5. Internal Revenue Service (IRS). One, Big, Beautiful Bill Provisions. Guidance on the Public Law 119-21 termination of the Section 25D residential credit for systems whose installation is completed after December 31, 2025. Accessed August 20, 2026.
Dean Mahmoud
Written by
Chief Executive Officer

Dean Mahmoud is the CEO of EcoGen America. He has connected tens of thousands of homeowners with residential solar installers across all 50 states since 2021, and works directly with installation companies on solar pricing, financing, and what homeowners actually pay for rooftop solar.

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