Missouri
Missouri Public Service Commission
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Commissioners
4Fax (573) 526-7341
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Fax (573) 751-1847
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Fax (573) 751-1847
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Fax (573) 751-1847
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State Intelligence
Updated Aug 3, 2026Utility Landscape
Ameren Missouri
IOUEastern Missouri including St. Louis metro and surrounding counties; approximately 1.2 million electric customers
Ameren Missouri has been active in filing rate cases and Clean Energy Connection tariff expansions. The MPSC approved significant capital recovery mechanisms tied to its Integrated Resource Plan, which emphasizes coal retirement timelines and solar build-out through 2040.
Evergy Missouri West (formerly Kansas City Power & Light)
IOUWestern Missouri including Kansas City metro, extending into portions of northwest Missouri
Evergy has pursued grid modernization infrastructure riders and is navigating MPSC scrutiny over its transmission cost allocation practices. Recent rate proceedings have focused on balancing customer rate impacts against capital investment recovery for renewable transition.
Spire Missouri
IOUNatural gas distribution across St. Louis metro, Kansas City metro, and rural Missouri; largest gas LDC in the state
Spire has faced Commission and legislative scrutiny following the controversial Spire STL Pipeline saga. Current regulatory focus includes infrastructure system replacement surcharge (ISRS) filings and ongoing debate over long-term gas demand trajectory amid building electrification policy discussions.
Liberty Utilities (Empire District Electric)
IOUSouthwest Missouri including Joplin area and portions of the Ozarks
Operating under Algonquin Power & Utilities (Liberty Utilities) ownership since 2017, Empire District has pursued rate recovery for wind and solar investments in SPP. The MPSC has scrutinized parent-company cost allocations and the appropriate rate base treatment of renewable assets.
Associated Electric Cooperative Inc. (AECI)
coopWholesale power supplier to six G&T cooperatives serving rural Missouri, Iowa, and Oklahoma
As a generation and transmission cooperative, AECI is subject to limited MPSC retail jurisdiction but faces significant regulatory attention around its coal generation retirement schedule and compliance with SPP market rules. Its member co-ops serve approximately 900,000 Missouri meters.
City Utilities of Springfield
muniSpringfield and surrounding Greene County communities; provides electric, gas, and transit services
City Utilities operates outside full MPSC rate jurisdiction as a municipal utility but engages with Commission proceedings on interconnection and wholesale market issues. It has been advancing a notable solar-plus-storage program and navigating SPP capacity accreditation changes affecting resource planning.
Key Issues
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Ameren Missouri integrated resource plan (IRP) implementation and coal retirement sequencing: The MPSC is actively monitoring Ameren's commitment to retire Labadie and Sioux coal plants on schedule while ensuring resource adequacy, with intervening parties challenging the pace and sufficiency of replacement capacity additions.
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Electric vehicle infrastructure and rate design: Multiple IOUs have filed or are expected to file EV-specific tariffs and managed charging pilot programs; the MPSC is weighing how to allocate EV infrastructure costs between participating and non-participating customers while avoiding cross-subsidization.
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Natural gas infrastructure long-term prudency and stranded asset risk: Missouri legislative and Commission debate over whether continued gas distribution infrastructure investment (particularly ISRS-eligible projects) is prudent given potential demand erosion, with consumer advocates pushing for formal long-term demand forecasting requirements.
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Grid modernization and Advanced Metering Infrastructure (AMI) cost recovery: Evergy and Ameren Missouri both have pending or recently approved AMI deployment plans; the MPSC is scrutinizing cost-benefit methodologies and the linkage between smart meter deployment and dynamic rate offerings required to justify infrastructure riders.
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Renewable energy certificate (REC) accounting and voluntary green tariff program compliance: The MPSC has opened investigative proceedings into whether large commercial customers procuring power through utility green tariffs are receiving accurately retired RECs, following national scrutiny of REC double-counting practices.
Upcoming
Estimated deadline for public comments on Ameren Missouri's 2026 Integrated Resource Plan update filing; MPSC staff report expected to follow within 60 days per procedural schedule.
Estimated evidentiary hearing date in Evergy Missouri West general rate case (anticipated filing mid-2026); procedural schedule likely to place hearings in fall 2026 with a final order by early 2027.
Estimated MPSC technical conference on grid modernization cost recovery standards, following the Commission's 2025 notice of inquiry into AMI and distribution automation rider frameworks applicable to Missouri IOUs.
Estimated deadline for Spire Missouri's next annual Infrastructure System Replacement Surcharge (ISRS) filing and associated MPSC prudency review; hearing likely in first quarter 2027 per established annual docket cycle.
Commissioner Watch
View all ↗No commissioner changes tracked for this state yet.
Staff
71| Name | Title | Phone |
|---|---|---|
| Sarah Fontaine | Director of Strategic Communications | (573) 751-9300 |
| Kristy Manning | Senior Policy Advisor to Commissioner Jason R. Holsman | (573) 526-7751 |
| Loyd Wilson | Director of Administration | (573) 751-7435 |
| Michael James Abbott | Senior Project Manager | (573) 526-9821 |
| Lorie Alexander | Administrative Assistant to the Chairman of Missouri Public Service Commission | (573) 751-4221 |
| Douglas Anderson | Policy and Legal Advisor to Commissioner John Mitchell | (573) 645-5419 |
| Nathan Bailey | CPA | (816) 889-3944 |
| Christopher Boronda | Utility Regulatory Auditor | (573) 751-1964 |
| Malachi Andrew Bowman | Associate Engineer | (573) 526-4174 |
| Alexis Branson | Utility Regulator Auditor | (573) 526-0763 |
| Benjamin Howell Burton | Utility Regulatory Auditor | (314) 244-2135 |
| Amanda Conner | Senior Utility Regulatory Auditor | (573) 751-7427 |
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