Mystic Generating Station
173 Alford Street, Charlestown, MA 2129Plant Summary Information
Mystic Generating Station is ranked #4 out of 598 power plants in Massachusetts in terms of total annual net electricity generation.
Mystic Generating Station is comprised of 6 generators and generated 1.3 TWh during the 3-month period between December 2023 to March 2024.
| Plant Name | Mystic Generating Station |
|---|---|
| Utility Name | Constellation Mystic Power LLC |
| Location | Middlesex County, MA |
| Initial Operation Date | June 1969 |
| Last Update | Mar 2024 |
| Annual Generation | 1.8 TWh |
| Annual Consumption | 14.3 M MMBtu |
| Ranked #550 out of 11,835 Power Plants Nationwide | |
| Ranked #343 out of 2,253 Natural Gas Power Plants Nationwide | |
| Ranked #4 out of 598 Massachusetts Power Plants | |
| Ranked #4 out of 44 Massachusetts Natural Gas Power Plants | |
| Fuel Types | Natural Gas |
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Monthly Net Generation for Mystic Generating Station
Mystic Generating Station Details
| Summary Information | |
|---|---|
| Plant Name | Mystic Generating Station (1588) |
| Plant Address | 173 Alford Street, Charlestown, MA 2129 |
| Utility | Constellation Mystic Power LLC (49965) |
| Latitude, Longitude | 42.3908, -71.0675 |
| Generation Dates on File | Jan 2001 to Mar 2024 |
| Initial Operation Date | June 1969 |
| Annual Generation | 1.8 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 | Yes |
| FERC Exempt Wholesale Generator Docket Number | 98-46-000 |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | NPCC |
| Balancing Authority | ISO New England Inc. (ISNE) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | NA |
| Ash Impoundment | No |
| Transmission / Distribution Owner | NSTAR Electric Company (54913) MA |
| Grid Voltage | 345.00 kV / 115.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Local Distribution Company (LDC) | BOSTON GAS CO DBA NATIONAL GRID |
| Natural Gas Storage | No |
Generator GT81 Details Operating April 2003
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | G941 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | UN MYSTIC 18 1MYS8 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN MYSTIC 18 1MYS8 |
| Nameplate Capacity | 278.6 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 228.8 MW |
| Winter Capacity | 268.1 MW |
| Minimum Load | 140 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | April 2003 |
| Planned Retirement | June 2024 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| 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 |
| Switch Between Oil And Natural Gas | No |
Generator GT82 Details Operating April 2003
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | G941 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | UN MYSTIC 18 1NYS8 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN MYSTIC 18 1MYS8 |
| Nameplate Capacity | 278.6 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 230 MW |
| Winter Capacity | 270.6 MW |
| Minimum Load | 140 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | April 2003 |
| Planned Retirement | June 2024 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| 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 |
| Switch Between Oil And Natural Gas | No |
Generator ST85 Details Operating April 2003
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | G941 |
| Ownership | Single Owner |
| Duct Burners | Yes |
| RTO ISO LMP Node Designation | UN MYSTIC 18 1MYS8 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN MYSTIC 18 1MYS8 |
| Nameplate Capacity | 315 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 244.6 MW |
| Winter Capacity | 300.8 MW |
| Minimum Load | 75 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | April 2003 |
| Planned Retirement | June 2024 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| 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 |
| Switch Between Oil And Natural Gas | No |
Generator GT93 Details Operating June 2003
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | G942 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | UN MYSTIC 18 1MYS9 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN MYSTIC 18 1MYS9 |
| Nameplate Capacity | 278.6 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 231.1 MW |
| Winter Capacity | 278.7 MW |
| Minimum Load | 140 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | June 2003 |
| Planned Retirement | June 2024 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| 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 |
| Switch Between Oil And Natural Gas | No |
Generator GT94 Details Operating June 2003
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | G942 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | UN MYSTIC 18 1MYS9 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN MYSTIC 18 1MYS9 |
| Nameplate Capacity | 278.6 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 232.2 MW |
| Winter Capacity | 280.3 MW |
| Minimum Load | 140 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | June 2003 |
| Planned Retirement | June 2024 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| 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 |
| Switch Between Oil And Natural Gas | No |
Generator ST96 Details Operating June 2003
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | G942 |
| Ownership | Single Owner |
| Duct Burners | Yes |
| RTO ISO LMP Node Designation | UN MYSTIC 18 1MYS9 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN MYSTIC 18 1MYS9 |
| Nameplate Capacity | 315 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 246.7 MW |
| Winter Capacity | 288 MW |
| Minimum Load | 75 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | June 2003 |
| Planned Retirement | June 2024 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| 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 |
| Switch Between Oil And Natural Gas | No |
Mystic Generating Station Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
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| #352 | Arvah B Hopkins | Tallahassee, FL | 1.6 TWh |
| #353 | Russell City Energy Center | Hayward, CA | 1.6 TWh |
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