Show on map
- Combustion
- Loads
- In development
- Operating
- Size not stated
- 10 · 100 · 1,000 MW
Map
- Combustion
- Loads
- In development
- Operating
- Size not stated
Dallman: location and 3 exact-grade projects within 25 km. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Dallman
Power plant · Coal
Key facts
Power plant · Coalran 45% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 2009
- Net generation, 2025
- 900,919 MWh
- Grid
- 138 kV, 69 kV to City of Springfield - (IL) (MISO)
- Location
- Sangamon County, Illinois
- Operated by
- City of Springfield - (IL)
Output
- Gas
- Coal
- Oil
- Biomass and waste
Details
Who’s behind it
Interested in this project?
Set an alert Book a call Join the beta
Our team gets you what you need.
Beta: private project space · data room · readiness check
- Technology
- Coal source: “Conventional Steam Coal”
- Age
- 17 years since 2009
- Unused energy
- 1,115 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 11,622 Btu/kWh 2025
All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Gem |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 10,470,563 |
| Capacity factor, 2025 | 0.447 |
| Heat rate (Btu/kWh), 2025 | 11,622.1 |
| Net generation (MWh), 2025 | 900,919.0 |
| Balancing authority code | MISO |
Retirement
EIA-860M September 2026StatusSome generators have retired; the rest of the plant is still in service. As of EIA-860M for September 2026.- Capacity retired
- 387.7 MW
- Generators retired
- 3
- Capacity still in service
- 230.1 MW
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 1 | Conventional Steam Coal | 90.2 MW | Retired | December 2020 |
| 2 | Conventional Steam Coal | 90.2 MW | Retired | December 2020 |
| 3 | Conventional Steam Coal | 207.3 MW | Retired | March 2024 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 138 kV, 69 kV
- Transmission or distribution system owner
- City of Springfield - (IL)
- Balancing authority
- Midcontinent Independent Transmission System Operator, Inc..
- NERC region
- SERC
Transmission lines within 25 km (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 |
|---|---|---|---|---|
| City of Springfield - (IL) | Operator | EIA-860M | ||
| CITY OF SPRINGFIELD ILLINOIS | Owner | 100.0% | 31 Dec 2023 | EPA GHGRP |
Timeline
- Stated Unit 3 scheduled to retire, 207.3 MW · EIA-860M
- Stated Units 1, 2 scheduled to retire, 180.4 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 Preliminary Monthly Electric Generator Inventory
- Global Energy Monitor — Global Integrated Power Tracker (unit-level power plants, eight technologies, all statuses)Global 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.
- LBNL — A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024 (OEDI submission 8742)Yin, 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.
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: 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)
Around this plant
Nearby
within 25 km| Project | Kind | Away | MW |
|---|---|---|---|
| CENTRAL COMPUTING FACILITY, CMS Built | Large load | 6.9 km | |
| Lincoln Land Energy Center Announced | Gas, combined cycle | 19.7 km | 1,276.8 |
| Sangamon Wind Two LLC Postponed | Wind | 22.8 km | 100 |