Grantsburg Diesel
318 East Madison Avenue, Grantsburg, WI 54840Plant Summary Information
Grantsburg Diesel is ranked #22 out of 29 distillate fuel oil power plants in Wisconsin in terms of total annual net electricity generation.
Grantsburg Diesel is comprised of 5 generators and generated 6.7 MWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Grantsburg Diesel |
|---|---|
| Utility Name | Northwestern Wisconsin Elec Co |
| Location | Burnett County, WI |
| Initial Operation Date | December 1963 |
| Last Update | Dec 2025 |
| Annual Generation | 26.5 MWh |
| Annual Consumption | 155 MMBtu |
| Ranked #12,911 out of 13,081 Power Plants Nationwide | |
| Ranked #1,031 out of 1,233 Distillate Fuel Oil Power Plants Nationwide | |
| Ranked #254 out of 260 Wisconsin Power Plants | |
| Ranked #22 out of 29 Wisconsin Distillate Fuel Oil Power Plants | |
| Fuel Types | Distillate Fuel Oil |
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Monthly Net Generation for Grantsburg Diesel
Monthly Plant Fuel Consumption for Grantsburg Diesel
Grantsburg Diesel Details
| Summary Information | |
|---|---|
| Plant Name | Grantsburg Diesel (4021) |
| Plant Address | 318 East Madison Avenue, Grantsburg, WI 54840 |
| Utility | Northwestern Wisconsin Elec Co (13815) |
| Latitude, Longitude | 45.77919, -92.67805 |
| Generation Dates on File | Jan 2002 to Dec 2025 |
| Initial Operation Date | December 1963 |
| Annual Generation | 26.5 MWh |
| Fuel Types | Distillate Fuel Oil |
| 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 | MRO |
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. (MISO) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Municipality |
| Ash Impoundment | |
| Transmission / Distribution Owner | Northwestern Wisconsin Elec Co (13815) WI |
| Grid Voltage | 69.00 kV |
| Energy Storage | No |
Generator 2 Details Operating December 1963
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | nsp.nweload |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | sp.nweload |
| Nameplate Capacity | 0.7 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 0.8 MW |
| Winter Capacity | 0.8 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | December 1963 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Generator 3 Details Operating November 1968
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | nsp.nweload |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | nsp.nweload |
| Nameplate Capacity | 1 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 0.9 MW |
| Winter Capacity | 0.9 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | November 1968 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Generator 4 Details Operating September 1975
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | nsp.nweload |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | nsp.nweload |
| Nameplate Capacity | 2.2 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 2 MW |
| Winter Capacity | 2 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | September 1975 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Generator 1A Details Operating March 1995
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | nsp.nweload |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | nsp.nweload |
| Nameplate Capacity | 0.7 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 0.8 MW |
| Winter Capacity | 0.8 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | March 1995 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Generator 8 Details Operating June 2007
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.8 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 1.8 MW |
| Winter Capacity | 1.8 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | June 2007 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Grantsburg Diesel Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
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