- Combustion
- Retired
- 10 · 100 · 1,000 MW
Map
- Combustion
- Retired
Meredosia: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Meredosia
Power plant · Coal
Key facts
Power plant · Coalran 18% of 2011 Retired- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1948
- Net generation, 2011
- 868,380 MWh
- Location
- Morgan County, Illinois
- Operated by
- Ameren Energy Medina Valley
Output
- Gas
- Coal
- Oil
Details
Who’s behind it
- Owner
- Ameren Corp
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- Technology
- Coal source: “Conventional Steam Coal”
- Age
- 78 years since 1948
All 3 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Gem |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Balancing authority code | MISO |
Retirement
EIA-860M September 2026StatusEvery generator EIA lists at this plant has retired. As of EIA-860M for September 2026.- Retired
- December 2011
- Capacity retired
- 564 MW
- Generators retired
- 4
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 1 | Conventional Steam Coal | 57.5 MW | Retired | December 2011 |
| 2 | Conventional Steam Coal | 57.5 MW | Retired | December 2011 |
| 3 | Conventional Steam Coal | 239.3 MW | Retired | December 2011 |
| 4 | Petroleum Liquids | 209.7 MW | Retired | December 2011 |
By technology
| Technology | Retired | Scheduled to retire |
|---|---|---|
| Conventional Steam Coal | 354.3 MW | |
| Petroleum Liquids | 209.7 MW |
Grid
EIA-860Grid fieldsAs the plant reported them to EIA-860 (Schedule 2).- Balancing authority
- MISO
Transmission lines within 15 mi (10)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Ameren Energy Medina Valley | Operator | EIA-860M | ||
| AMEREN CORP | Owner | 100.0% | Dec 31, 2023 | EPA GHGRP |
Timeline
- Stated Units 1, 2, 3, 4 scheduled to retire, 564 MW · EIA-860M
- In service · EIA-860M
Sources
6 sourcesSources EIA-860M · GEM · LBNL · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M
- GEMGlobal Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- LBNLYin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)