Hays Energy Project
1601 Francis Harris Ln, San Marcos, TX 78666Plant Summary Information
Hays Energy Project is ranked #19 out of 861 power plants in Texas in terms of total annual net electricity generation.
Hays Energy Project is comprised of 4 generators and generated 1.8 TWh during the 3-month period between May 2026 to August 2026.
| Plant Name | Hays Energy Project |
|---|---|
| Utility Name | Hays Energy, LLC |
| Location | Hays County, TX |
| Initial Operation Date | April 2002 |
| Last Update | Aug 2026 |
| Annual Generation | 5.6 TWh |
| Annual Consumption | 48.0 M MMBtu |
| Ranked #190 out of 13,301 Power Plants Nationwide | |
| Ranked #82 out of 2,218 Natural Gas Power Plants Nationwide | |
| Ranked #19 out of 861 Texas Power Plants | |
| Ranked #11 out of 314 Texas Natural Gas Power Plants | |
| Fuel Types | Natural Gas |
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Monthly Net Generation for Hays Energy Project
Monthly Plant Fuel Consumption for Hays Energy Project
Hays Energy Project Details
| Summary Information | |
|---|---|
| Plant Name | Hays Energy Project (55144) |
| Plant Address | 1601 Francis Harris Ln, San Marcos, TX 78666 |
| Utility | Hays Energy, LLC (1074) |
| Latitude, Longitude | 29.7806, -97.9894 |
| Generation Dates on File | Jun 2001 to Aug 2026 |
| Initial Operation Date | April 2002 |
| Annual Generation | 5.6 TWh |
| 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 | Non-Regulated |
| NERC Region | TRE |
| Balancing Authority | Electric Reliability Council of Texas, Inc. (ERCO) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Municipality/San Marcos |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Lower Colorado River Authority (11269) |
| Grid Voltage | 345.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Pipeline Name |
OASIS PIPE LINE COMPANY TEXAS LP ENTERPRISE INTRASTATE LLC |
| Natural Gas Storage | No |
Generator U2 Details Operating April 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Single Shaft |
| Ownership | Single Owner |
| Duct Burners | No |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | HAYSEN_HAYSENG2 |
| Nameplate Capacity | 241.7 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 232 MW |
| Winter Capacity | 261 MW |
| Minimum Load | 120 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | April 2002 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator U1 Details Operating May 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Single Shaft |
| Ownership | Single Owner |
| Duct Burners | No |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | HAYSEN_HAYSENG1 |
| Nameplate Capacity | 241.7 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 234 MW |
| Winter Capacity | 260 MW |
| Minimum Load | 120 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | May 2002 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator U3 Details Operating August 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Single Shaft |
| Ownership | Single Owner |
| Duct Burners | No |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | HAYSEN_HAYSENG3 |
| Nameplate Capacity | 252.8 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 231 MW |
| Winter Capacity | 263 MW |
| Minimum Load | 120 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | August 2002 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
Generator U4 Details Operating August 2002
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Single Shaft |
| Ownership | Single Owner |
| Duct Burners | No |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | HAYSEN_HAYSENG4 |
| Nameplate Capacity | 252.8 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 234 MW |
| Winter Capacity | 264 MW |
| Minimum Load | 120 MW |
|---|---|
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | August 2002 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
Hays Energy Project Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Natural Gas.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #72 | Marcus Hook Energy LP | Marcus Hook, PA | 5.8 TWh |
| #73 | Hunterstown Power Plant | Gettysburg, PA | 5.8 TWh |
| #74 | W S Lee | Williamston, SC | 5.8 TWh |
| #75 | Cottonwood Energy Company LP | Deweyville, TX | 5.8 TWh |
| #76 | Central Alabama Generating Station | Billingsley, AL | 5.7 TWh |
| #77 | Oregon Clean Energy Center | Oregon, OH | 5.7 TWh |
| #78 | Lee Combined Cycle Plant | Goldsboro, NC | 5.7 TWh |
| #79 | St Joseph Energy Center | New Carlisle, IN | 5.7 TWh |
| #80 | CPV Towantic Energy Center | Oxford, CT | 5.6 TWh |
| #81 | Hamilton Patriot Generation Plant | Montgomery, PA | 5.6 TWh |
| #83 | Carroll County Energy | Carrollton, OH | 5.6 TWh |
| #84 | Kiamichi Energy Facility | Kiowa, OK | 5.6 TWh |
| #85 | Plaquemine Cogeneration Plant | Plaquemine, LA | 5.7 TWh |
| #86 | Linden Cogen Plant | Linden, NJ | 5.5 TWh |
| #87 | Dearborn Industrial Generation | Dearborn, MI | 5.5 TWh |
| #88 | TVA Southaven Combined Cycle | Southaven, MS | 5.5 TWh |
| #89 | Guadalupe Generating Station | Marion, TX | 5.5 TWh |
| #90 | Taft Cogeneration Facility | Hahnville, LA | 5.6 TWh |
| #91 | Eagle Valley (IN) | Martinsville, IN | 5.4 TWh |
| #92 | Kendall County Generation Facility | Minooka, IL | 5.4 TWh |
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