RockGen Energy Center
2346 Clearview Road, Cambridge, WI 53523Plant Summary Information
RockGen Energy Center is ranked #15 out of 239 power plants in Wisconsin in terms of total annual net electricity generation.
RockGen Energy Center is comprised of 3 generators and generated 358.7 GWh during the 3-month period between June 2025 to September 2025.
| Plant Name | RockGen Energy Center |
|---|---|
| Utility Name | Dairyland Power Coop |
| Location | Dane County, WI |
| Initial Operation Date | June 2001 |
| Last Update | Sep 2025 |
| Annual Generation | 510.3 GWh |
| Annual Consumption | 6.8 M MMBtu |
| Ranked #1,319 out of 12,539 Power Plants Nationwide | |
| Ranked #556 out of 2,243 Natural Gas Power Plants Nationwide | |
| Ranked #15 out of 239 Wisconsin Power Plants | |
| Ranked #8 out of 52 Wisconsin Natural Gas Power Plants | |
| Fuel Types | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| Previous Operators |
Calpine -RockGen Energy (2013 to 2018) Rockgen Energy LLC (2019 to 2020) Dairyland Power Coop (2021 to 2024) |
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Monthly Net Generation for RockGen Energy Center
RockGen Energy Center Details
| Summary Information | |
|---|---|
| Plant Name | RockGen Energy Center (55391) |
| Plant Address | 2346 Clearview Road, Cambridge, WI 53523 |
| Utility | Dairyland Power Coop (4716) |
| Latitude, Longitude | 42.9767, -89.0492 |
| Generation Dates on File | Jun 2001 to Sep 2025 |
| Initial Operation Date | June 2001 |
| Annual Generation | 510.3 GWh |
| Fuel Types | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| 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 | 99-48-00 |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | MRO |
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. (MISO) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | |
| Ash Impoundment | No |
| Transmission / Distribution Owner | American Transmission Co (659) WI |
| Grid Voltage | 138.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Pipeline Name | ANR PIPELINE COMPANY |
| Natural Gas Storage | No |
Generator 01 Details Operating June 2001
| Technology | Natural Gas Fired Combustion Turbine |
|---|---|
| Prime Mover | Combustion Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 187 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 163 MW |
| Winter Capacity | 163 MW |
| Minimum Load | 102 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | June 2001 |
|---|---|
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas / Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | Yes |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Switch When Operating | Yes |
|---|---|
| Net Summer Capacity With Natural Gas | 155 MW |
| Net Winter Capacity With Natural Gas | 162 MW |
| Net Summer Capacity With Oil | 155 MW |
| Net Winter Capacity With Oil | 162 MW |
| Time To Switch From Gas To Oil | 1H |
| Time To Switch From Oil To Gas | 1H |
| Factors That Limit Switching | Yes |
| Air Permit Limits | Yes |
Generator 02 Details Operating June 2001
| Technology | Natural Gas Fired Combustion Turbine |
|---|---|
| Prime Mover | Combustion Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 187 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 163 MW |
| Winter Capacity | 163 MW |
| Minimum Load | 102 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | June 2001 |
|---|---|
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas / Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | Yes |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Switch When Operating | Yes |
|---|---|
| Net Summer Capacity With Natural Gas | 155 MW |
| Net Winter Capacity With Natural Gas | 162 MW |
| Net Summer Capacity With Oil | 155 MW |
| Net Winter Capacity With Oil | 162 MW |
| Time To Switch From Gas To Oil | 1H |
| Time To Switch From Oil To Gas | 1H |
| Factors That Limit Switching | Yes |
| Air Permit Limits | Yes |
Generator 03 Details Operating June 2001
| Technology | Natural Gas Fired Combustion Turbine |
|---|---|
| Prime Mover | Combustion Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 187 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 163 MW |
| Winter Capacity | 163 MW |
| Minimum Load | 102 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | June 2001 |
|---|---|
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas / Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | Yes |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Switch When Operating | Yes |
|---|---|
| Net Summer Capacity With Natural Gas | 155 MW |
| Net Winter Capacity With Natural Gas | 162 MW |
| Net Summer Capacity With Oil | 155 MW |
| Net Winter Capacity With Oil | 162 MW |
| Time To Switch From Gas To Oil | 1H |
| Time To Switch From Oil To Gas | 1H |
| Factors That Limit Switching | Yes |
| Air Permit Limits | Yes |
RockGen Energy Center 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 |
|---|---|---|---|
| #546 | West Deptford Energy Station | West Deptford, NJ | 534.9 GWh |
| #547 | Sayreville Cogeneration Facility | Sayreville, NJ | 534.8 GWh |
| #548 | BASF Freeport Works | Feeeport, TX | 532.7 GWh |
| #549 | Remy Jade Power Station | Crosby, TX | 532.6 GWh |
| #550 | SPA Cogen 3 | Sacramento, CA | 531.2 GWh |
| #551 | Dighton Power Plant | Dighton, MA | 531.1 GWh |
| #552 | Sewell Creek Energy | Cedartown, GA | 522.9 GWh |
| #553 | Shady Hills Generating Station | Shady Hills, FL | 528.8 GWh |
| #554 | Louisa Generation Facility | Gordonsville, VA | 520.8 GWh |
| #555 | Darby Power, LLC | Mt Sterling, OH | 510.4 GWh |
| #557 | West Gardner | Johnson, KS | 502.0 GWh |
| #558 | Comanche (OK) | Lawton, OK | 500.6 GWh |
| #559 | Alpine Power Plant | Elmira, MI | 498.5 GWh |
| #560 | Talbot County Energy | Box Springs, GA | 494.2 GWh |
| #561 | Cheyenne Prairie Generating Station | Cheyenne, WY | 493.0 GWh |
| #562 | Mustang | Oklahoma City, OK | 495.4 GWh |
| #563 | Oleander Power Project LP | Cocoa, FL | 488.9 GWh |
| #564 | Thomas Fitzhugh | Ozark, AR | 484.4 GWh |
| #565 | Millennium Power | Charlton, MA | 482.2 GWh |
| #566 | Pensacola Florida Plant | Cantonment, FL | 481.7 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding RockGen Energy Center.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Ameresco Janesville | Janesville, WI | 9.1 GWh | 18.6 mi |
| Blount Street | Madison, WI | 48.8 GWh | 17.9 mi |
| Crawfish River | Jefferson, WI | 131.0 GWh | 8.9 mi |
| Dane County Airport Solar | Madison, WI | 17.7 GWh | 19 mi |
| Dane County Solar LLC | Cottage Grove, WI | 33.2 GWh | 10.8 mi |
| Deertrack Park Gas Recovery | Watertown, WI | 37.0 GWh | 17.5 mi |
| Diesel Generators | Madison, WI | 860.0 MWh | 17.9 mi |
| Fitchburg | Madison, WI | 14.0 MWh | 20.9 mi |
| Galactic Wind | Waunakee, WI | 22.0 GWh | 16.7 mi |
| Hackbarth Solar WI, LLC | Fort Atkinson, WI | 30.0 MWh | 10.7 mi |
| Hermsdorf Solar | Madison, WI | 14.8 GWh | 12.1 mi |
| Jefferson Solar Park | Jefferson, WI | 918.0 MWh | 12.9 mi |
| Jones Dairy | Fort Atkinson, WI | 3.7 GWh | 10.9 mi |
| Nine Springs | Madison, WI | 82.0 MWh | 16.2 mi |
| North Rock | Edgerton, WI | 100.1 GWh | 11.8 mi |
| O'Brien Solar Fields | Fitchburg, WI | 38.5 GWh | 20.8 mi |
| Sycamore (WI) | Madison, WI | 19.0 MWh | 16.3 mi |
| Tyto Solar | Fitchburg, WI | 10.8 GWh | 16.6 mi |
| West Campus Cogeneration Facility | Madison, WI | 282.0 GWh | 20.2 mi |
| Whitewater Generating Station | Whitewater, WI | 863.1 GWh | 18.2 mi |