- Combustion
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Operating
Lieberman: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Lieberman
Power plant · Gas, steam turbine
Key facts
Power plant · Gas, steam turbineran 13% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1957
- Net generation, 2025
- 252,646 MWh
- Grid
- 138 kV to Southwestern Electric Power Co (SWPP)
- Location
- Caddo County, Louisiana
- Operated by
- Southwestern Electric Power Co
Output
- Gas
- Oil
Details
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- Technology
- Gas, steam turbine source: “Natural Gas Steam Turbine”
- Age
- 69 years since 1957
- Unused energy
- 1,745 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
- 12,078 Btu/kWh 2025
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 3,051,394 |
| Capacity factor, 2025 | 0.127 |
| Heat rate (Btu/kWh), 2025 | 12,077.7 |
| Net generation (MWh), 2025 | 252,646 |
| Balancing authority code | SWPP |
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
- 50 MW
- Generators retired
- 2
- Capacity still in service
- 228 MW
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | 25 MW | Retired | December 2014 |
| 2 | Natural Gas Steam Turbine | 25 MW | Retired | May 2020 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 138 kV
- Transmission or distribution system owner
- Southwestern Electric Power Co
- Balancing authority
- Southwest Power Pool
- NERC region
- MRO
Transmission lines within 25 km (10)
- Lieberman - Blanchard 138 kV
- Lieberman 138 kV line
- Lieberman - Lieberman 138 kV
- Arsenal Hill - Lieberman 138 kV
- Lieberman 138 kV line
- Lieberman 138 kV line
- Longwood - Lieberman 138 kV
- Southwestern Electric Power Company 138 kV line (OSM way 12590775)
- Sarepta - Longwood 345 kV
- Southwestern Electric Power Company 69 kV line (OSM way 21100855)
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 |
|---|---|---|---|---|
| Southwestern Electric Power Co | Operator | EIA-860M | ||
| AMERICAN ELECTRIC POWER CO INC | Owner | 100.0% | 31 Dec 2023 | EPA GHGRP |
Timeline
- Stated Unit 2 scheduled to retire, 25 MW · EIA-860M
- Stated Unit 1 scheduled to retire, 25 MW · EIA-860M
- In service · EIA-860M
Sources
6 sourcesSources EIA-860M · LBNL · OpenStreetMap · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
© OpenStreetMap contributors
Sources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- 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.
- OpenStreetMap power network, US — transmission lines and cables (69 kV and up, or voltage not tagged) and substations, from Geofabrik's US state extracts© OpenStreetMap contributors. Power lines, cables and substations filtered and reshaped by Inframation from the OpenStreetMap elements in Overture Maps' base/infrastructure theme; this derived database is available under the Open Database License 1.0 as GeoParquet files at https://tiles.inframation.io/grid/osm-power/ (latest.json names the current version's files; licence: https://www.openstreetmap.org/copyright)
- 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)