Watson Cogeneration
22850 South Wilminton, Carson, CA 90749Plant Summary Information
Watson Cogeneration is ranked #13 out of 1,578 power plants in California in terms of total annual net electricity generation.
Watson Cogeneration is comprised of 6 generators and generated 588.1 GWh during the 3-month period between October 2024 to January 2025.
| Plant Name | Watson Cogeneration |
|---|---|
| Utility Name | ARCO Products Co-Watson |
| Location | Los Angeles County, CA |
| Initial Operation Date | December 1987 |
| Last Update | Jan 2025 |
| Annual Generation | 2.4 TWh |
| Annual Consumption | 34.3 M MMBtu |
| Ranked #463 out of 11,979 Power Plants Nationwide | |
| Ranked #321 out of 2,255 Natural Gas Power Plants Nationwide | |
| Ranked #13 out of 1,578 California Power Plants | |
| Ranked #18 out of 346 California Natural Gas Power Plants | |
| Fuel Types | Natural Gas : 85.0% Other Gas : 14.4% Waste/Other Oil : 0.6% |
Map of Watson Cogeneration
Full Screen MapRegister Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Watson Cogeneration.
Monthly Net Generation for Watson Cogeneration
Watson Cogeneration Details
| Summary Information | |
|---|---|
| Plant Name | Watson Cogeneration (50216) |
| Plant Address | 22850 South Wilminton, Carson, CA 90749 |
| Utility | ARCO Products Co-Watson (867) |
| Latitude, Longitude | 33.81665, -118.24484 |
| Generation Dates on File | Jan 2001 to Jan 2025 |
| Initial Operation Date | December 1987 |
| Annual Generation | 2.4 TWh |
| Fuel Types | Natural Gas : 85.0% Other Gas : 14.4% Waste/Other Oil : 0.6% |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | Yes |
| FERC Cogeneration Docket Number | 85-526-001 |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | California Independent System Operator (CISO) |
| NAICS Code | Petroleum Refineries (32411) |
| Sector | Industrial CHP (7) |
| Water Source | Dominquez Water |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Southern California Edison Co (17609) CA |
| Grid Voltage | 220.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Local Distribution Company (LDC) | SOUTHERN CALIFORNIA GAS COMPANY |
| Natural Gas Storage | No |
Generator GN94 Details Operating December 1987
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | CC1 |
| Ownership | Wholly Owned by Other Entity |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | POD_ARCOGN_2_UNITS |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | POD_ARCOGN_2_UNITS |
| Nameplate Capacity | 82 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 82 MW |
| Winter Capacity | 82 MW |
| Minimum Load | 68 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | December 1987 |
|---|---|
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas / Waste/Other Oil |
| Startup Source | Waste/Other Oil / Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | No |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Cofire Energy Source | NG / OG / WO |
|---|---|
| Switch When Operating | Yes |
| Net Summer Capacity With Natural Gas | 82 MW |
| Net Winter Capacity With Natural Gas | 82 MW |
| Net Summer Capacity With Oil | 82 MW |
| Net Winter Capacity With Oil | 82 MW |
| Time To Switch From Gas To Oil | 1H |
| Time To Switch From Oil To Gas | 1H |
| Factors That Limit Switching | Yes |
| Storage Limits | Yes |
| Air Permit Limits | Yes |
Generator GN96 Details Operating December 1987
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | CC1 |
| Ownership | Wholly Owned by Other Entity |
| Duct Burners | Yes |
| RTO ISO LMP Node Designation | POD_ARCOGN_2_UNITS |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | POD_ARCOGN_2_UNITS |
| Nameplate Capacity | 38.5 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 35 MW |
| Winter Capacity | 35 MW |
| Minimum Load | 10 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | December 1987 |
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Other Planned Modifications | No |
| Multiple Fuels | Yes |
Generator GN93 Details Operating January 1988
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | CC1 |
| Ownership | Wholly Owned by Other Entity |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | POD_ARCOGN_2_UNITS |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | POD_ARCOGN_2_UNITS |
| Nameplate Capacity | 82 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 82 MW |
| Winter Capacity | 82 MW |
| Minimum Load | 68 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | January 1988 |
|---|---|
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas / Waste/Other Oil |
| Startup Source | Waste/Other Oil / Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | No |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Cofire Energy Source | NG / OG / WO |
|---|---|
| Switch When Operating | Yes |
| Net Summer Capacity With Natural Gas | 82 MW |
| Net Winter Capacity With Natural Gas | 82 MW |
| Net Summer Capacity With Oil | 82 MW |
| Net Winter Capacity With Oil | 82 MW |
| Time To Switch From Gas To Oil | 1H |
| Time To Switch From Oil To Gas | 1H |
| Factors That Limit Switching | Yes |
| Storage Limits | Yes |
| Air Permit Limits | Yes |
Generator GN92 Details Operating February 1988
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | CC1 |
| Ownership | Wholly Owned by Other Entity |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | POD_ARCOGN_2_UNITS |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | POD_ARCOGN_2_UNITS |
| Nameplate Capacity | 82 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 82 MW |
| Winter Capacity | 82 MW |
| Minimum Load | 68 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | February 1988 |
|---|---|
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas / Waste/Other Oil |
| Startup Source | Waste/Other Oil / Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | No |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Cofire Energy Source | NG / OG / WO |
|---|---|
| Switch When Operating | Yes |
| Net Summer Capacity With Natural Gas | 82 MW |
| Net Winter Capacity With Natural Gas | 82 MW |
| Net Summer Capacity With Oil | 82 MW |
| Net Winter Capacity With Oil | 82 MW |
| Time To Switch From Gas To Oil | 1H |
| Time To Switch From Oil To Gas | 1H |
| Factors That Limit Switching | Yes |
| Storage Limits | Yes |
| Air Permit Limits | Yes |
Generator GN95 Details Operating February 1988
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | CC1 |
| Ownership | Wholly Owned by Other Entity |
| Duct Burners | Yes |
| RTO ISO LMP Node Designation | POD_ARCOGN_2_UNITS |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | POD_ARCOGN_2_UNITS |
| Nameplate Capacity | 38.5 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 35 MW |
| Winter Capacity | 35 MW |
| Minimum Load | 10 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | February 1988 |
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Other Planned Modifications | No |
| Multiple Fuels | Yes |
Generator GN91 Details Operating March 1988
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | CC1 |
| Ownership | Wholly Owned by Other Entity |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | POD_ARCOGN_2_UNITS |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | POD_ARCOGN_2_UNITS |
| Nameplate Capacity | 82 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 82 MW |
| Winter Capacity | 82 MW |
| Minimum Load | 68 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | March 1988 |
|---|---|
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas / Waste/Other Oil |
| Startup Source | Waste/Other Oil / Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | No |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Cofire Energy Source | NG / OG / WO |
|---|---|
| Switch When Operating | Yes |
| Net Summer Capacity With Natural Gas | 82 MW |
| Net Winter Capacity With Natural Gas | 82 MW |
| Net Summer Capacity With Oil | 82 MW |
| Net Winter Capacity With Oil | 82 MW |
| Time To Switch From Gas To Oil | 1H |
| Time To Switch From Oil To Gas | 1H |
| Factors That Limit Switching | Yes |
| Storage Limits | Yes |
| Air Permit Limits | Yes |
Watson Cogeneration Plant Owners
| Owner Name | Address | Generator | Ownership |
|---|---|---|---|
| Tesoro SoCal Cogen LLC | 19100 Ridgewood Parkway, San Antonio, TX 78259 | Generator GN91 | 100.00% |
| Tesoro SoCal Cogen LLC | 19100 Ridgewood Parkway, San Antonio, TX 78259 | Generator GN92 | 100.00% |
| Tesoro SoCal Cogen LLC | 19100 Ridgewood Parkway, San Antonio, TX 78259 | Generator GN93 | 100.00% |
| Tesoro SoCal Cogen LLC | 19100 Ridgewood Parkway, San Antonio, TX 78259 | Generator GN94 | 100.00% |
| Tesoro SoCal Cogen LLC | 19100 Ridgewood Parkway, San Antonio, TX 78259 | Generator GN95 | 100.00% |
| Tesoro SoCal Cogen LLC | 19100 Ridgewood Parkway, San Antonio, TX 78259 | Generator GN96 | 100.00% |
| Tesoro SoCal Cogen LLC | 19100 Ridgewood Parkway, San Antonio, TX 78259 | Generator GN97 | 100.00% |
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Natural Gas.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #311 | Pleasants Energy LLC | St Mary's, WV | 2.1 TWh |
| #312 | Bayou Cogen Plant | Pasadena, TX | 2.3 TWh |
| #313 | Jackson Generating Station | Jackson, MI | 2.1 TWh |
| #314 | Hidalgo Energy Center | Edinburg, TX | 2.1 TWh |
| #315 | Bergen Generating Station | Ridgefield, NJ | 2.1 TWh |
| #316 | Apache Station | Cochise, AZ | 2.3 TWh |
| #317 | Coyote Springs | Boardman, OR | 2.0 TWh |
| #318 | Gila River Power Block 1 | Gila Bend, AZ | 2.0 TWh |
| #319 | Hopewell Cogeneration | Hopewell, VA | 2.0 TWh |
| #320 | Dogwood Energy Facility | Pleasant Hill, MO | 2.0 TWh |
| #322 | Mint Farm Generating Station | Longview, WA | 2.0 TWh |
| #323 | Moselle | Moselle, MS | 2.0 TWh |
| #324 | ANP Blackstone Energy Project | Blackstone, MA | 2.0 TWh |
| #325 | Chesterfield | Chester, VA | 2.0 TWh |
| #326 | Louisiana 1 | Baton Rouge, LA | 2.6 TWh |
| #327 | St Francis Energy Facility | Campbell, MO | 2.0 TWh |
| #328 | RS Cogen | Lake Charles, LA | 2.0 TWh |
| #329 | Northside Generating Station | Jacksonville, FL | 2.9 TWh |
| #330 | O W Sommers | San Antonio, TX | 1.9 TWh |
| #331 | Cedar Bayou 4 | Eldon, TX | 1.9 TWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Watson Cogeneration.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| 20333 Normandie PV, LLC | Torrance, CA | 3.8 GWh | 3.8 mi |
| Carson Cogeneration | Carson, CA | 34.8 GWh | 4.1 mi |
| Colon PV | Wilmington, CA | 1.4 GWh | 1.7 mi |
| Dominguez Plant | Long Beach, CA | 13.7 GWh | 1.9 mi |
| Equilon Los Angeles Refining | Wilmington, CA | 349.6 GWh | 1.8 mi |
| Francisco St. Solar | Torrance, CA | 1.8 GWh | 4.1 mi |
| Harbor | Wilmington, CA | 247.9 GWh | 3.4 mi |
| Harbor Cogen | Wilmington, CA | 25.6 GWh | 2.9 mi |
| Kaiser - Harbor City | Harbor City, CA | 16.4 GWh | 3.5 mi |
| KSR053 Cantara Fuel Cell | Panorama City, CA | 5.3 GWh | 3.4 mi |
| Long Beach Generation LLC | Long Beach, CA | 10.1 GWh | 3.8 mi |
| Los Angeles Harbor College | Wilmington, CA | 2.3 GWh | 3.3 mi |
| Los Angeles Refinery Wilmington | Wilmington, CA | 397.9 GWh | 4.1 mi |
| Signal Hill West Unit | Signal Hill, CA | 37.3 GWh | 4 mi |
| Southeast Resource Recovery | Long Beach, CA | 89.9 GWh | 4 mi |
| THUMS | Long Beach, CA | 338.6 GWh | 3.8 mi |
| Total Energy Facilities | Carson, CA | 168.8 GWh | 4 mi |
| Toyota Long Beach Trigen | Long Beach, CA | 5.1 GWh | 2.8 mi |
| Valero Wilmington Cogeneration Plant | Wilmington, CA | 236.7 GWh | 2.6 mi |
| Wilmington Hydrogen Plant | Wilmington, CA | 167.7 GWh | 2.5 mi |