Harry L. Oswald
17400 Hwy 365, Little Rock, AR 72206Plant Summary Information
Harry L. Oswald is ranked #12 out of 115 power plants in Arkansas in terms of total annual net electricity generation.
Harry L. Oswald is comprised of 9 generators and generated 133.1 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Harry L. Oswald |
|---|---|
| Utility Name | Arkansas Electric Coop Corp |
| Location | Pulaski County, AR |
| Initial Operation Date | July 2002 |
| Last Update | Dec 2025 |
| Annual Generation | 929.3 GWh |
| Annual Consumption | 8.5 M MMBtu |
| Ranked #790 out of 13,081 Power Plants Nationwide | |
| Ranked #453 out of 2,206 Natural Gas Power Plants Nationwide | |
| Ranked #12 out of 115 Arkansas Power Plants | |
| Ranked #6 out of 19 Arkansas Natural Gas Power Plants | |
| Fuel Types | Natural Gas |
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Monthly Net Generation for Harry L. Oswald
Monthly Plant Fuel Consumption for Harry L. Oswald
Harry L. Oswald Details
| Summary Information | |
|---|---|
| Plant Name | Harry L. Oswald (55221) |
| Plant Address | 17400 Hwy 365, Little Rock, AR 72206 |
| Utility | Arkansas Electric Coop Corp (807) |
| Latitude, Longitude | 34.5923, -92.2166 |
| Generation Dates on File | Jul 2002 to Dec 2025 |
| Initial Operation Date | July 2002 |
| Annual Generation | 929.3 GWh |
| Fuel Types | Natural Gas |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | SERC |
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. (MISO) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Municipality |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Entergy Arkansas Inc (814) AR |
| Grid Voltage | 500.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Pipeline Name | NATURAL GAS PL CO OF AMERICA |
| Natural Gas Storage | No |
Generator G1 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 51 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 47 MW |
| Winter Capacity | 47 MW |
| Minimum Load | 27 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G2 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 51 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 47 MW |
| Winter Capacity | 47 MW |
| Minimum Load | 27 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G3 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 51 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 47 MW |
| Winter Capacity | 47 MW |
| Minimum Load | 27 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G4 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 51 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 47 MW |
| Winter Capacity | 47 MW |
| Minimum Load | 27 MW |
|---|---|
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G5 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 51 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 47 MW |
| Winter Capacity | 47 MW |
| Minimum Load | 27 MW |
|---|---|
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G6 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 51 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 47 MW |
| Winter Capacity | 47 MW |
| Minimum Load | 27 MW |
|---|---|
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G7 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 83.5 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 76 MW |
| Winter Capacity | 76 MW |
| Minimum Load | 34 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G8 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Duct Burners | Yes |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 105 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 95 MW |
| Winter Capacity | 95 MW |
| Minimum Load | 32 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator G9 Details Operating July 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | OSW1 |
| Ownership | Single Owner |
| Duct Burners | Yes |
| RTO ISO LMP Node Designation | EAI.CC.AECCWRT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EIA |
| Nameplate Capacity | 105 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 95 MW |
| Winter Capacity | 95 MW |
| Minimum Load | 32 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 2002 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Harry L. Oswald Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
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|---|---|---|---|
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| #450 | Richmond Cogen | Richmond, CA | 956.3 GWh |
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| #457 | Clark (NVE) | Las Vegas, NV | 916.9 GWh |
| #458 | Montana Power Station | El Paso, TX | 911.7 GWh |
| #459 | Ceredo Generating Station | Huntington, WV | 911.5 GWh |
| #460 | Power Island | Alvin, TX | 907.8 GWh |
| #461 | Delaware City Plant | Delaware City, DE | 1.1 TWh |
| #462 | Ladysmith | Woodford, VA | 976.8 GWh |
| #463 | Elk Station | Abernathy, TX | 890.9 GWh |
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