Wilmarth
800 Summit Ave, Mankato, MN 56001Plant Summary Information
Wilmarth is ranked #39 out of 55 non-biogenic municipal solid waste power plants nationwide in terms of total annual net electricity generation.
Wilmarth is comprised of 2 generators and generated 29.5 GWh during the 3-month period between February 2026 to May 2026.
| Plant Name | Wilmarth |
|---|---|
| Utility Name | Northern States Power Co - Minnesota |
| Location | Blue Earth County, MN |
| Initial Operation Date | September 1948 |
| Last Update | May 2026 |
| Annual Generation | 96.5 GWh |
| Annual Consumption | 1.9 M MMBtu |
| Ranked #3,535 out of 13,081 Power Plants Nationwide | |
| Ranked #39 out of 55 NON-Biogenic Municipal Solid Waste Power Plants Nationwide | |
| Ranked #64 out of 781 Minnesota Power Plants | |
| Ranked #3 out of 4 Minnesota NON-Biogenic Municipal Solid Waste Power Plants | |
| Fuel Types | Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Natural Gas : 2.1% |
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Monthly Net Generation for Wilmarth
Monthly Plant Fuel Consumption for Wilmarth
Wilmarth Details
| Summary Information | |
|---|---|
| Plant Name | Wilmarth (1934) |
| Plant Address | 800 Summit Ave, Mankato, MN 56001 |
| Utility | Northern States Power Co - Minnesota (13781) |
| Latitude, Longitude | 44.1967, -94.0009 |
| Generation Dates on File | Jan 2001 to May 2026 |
| Initial Operation Date | September 1948 |
| Annual Generation | 96.5 GWh |
| Fuel Types | Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Natural Gas : 2.1% |
| 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 | Minnesota River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Northern States Power Co - Minnesota (13781) MN |
| Grid Voltage | 69.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Local Distribution Company (LDC) | CENTERPOINT ENERGY |
| Natural Gas Storage | No |
| Liquefied Natural Gas Storage | No |
Generator 1 Details Operating September 1948
| Technology | Municipal Solid Waste |
|---|---|
| Prime Mover | Steam Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | NSP WILMART WILMAR_1_UNIT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | NSP WILMART WILMAR_1_UNIT |
| Nameplate Capacity | 12.5 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 9 MW |
| Winter Capacity | 9 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | September 1948 |
|---|---|
| Planned Retirement | December 2037 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Municipal Solid Waste / Natural Gas |
| Startup Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | No |
| Multifuel Details | |
| Cofire Energy Source | MSW / NG / WDS |
|---|---|
Generator 2 Details Operating March 1951
| Technology | Municipal Solid Waste |
|---|---|
| Prime Mover | Steam Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | NSP WILMART WILMAR_2_UNIT |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | NSP WILMART WILMAR_2_UNIT |
| Nameplate Capacity | 12.5 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 9 MW |
| Winter Capacity | 9 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | March 1951 |
|---|---|
| Planned Retirement | December 2037 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Municipal Solid Waste / Natural Gas |
| Startup Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | No |
| Multifuel Details | |
| Cofire Energy Source | MSW / NG / WDS |
|---|---|
Wilmarth 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 Non-biogenic Municipal Solid Waste.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #29 | Onondaga County Resource Recovery | Jamesville, NY | 179.4 GWh |
| #30 | Camden Resource Recovery Facility | Camden, NJ | 160.7 GWh |
| #31 | Covanta Alexandria/Arlington Energy | Alexandria, VA | 144.8 GWh |
| #32 | Spokane Waste to Energy | Spokane, WA | 132.4 GWh |
| #33 | Reworld Niagara I | Niagara Falls, NY | 141.9 GWh |
| #34 | Red Wing | Red Wing, MN | 131.9 GWh |
| #35 | Reworld Babylon Inc | West Babylon, NY | 122.6 GWh |
| #36 | Covanta Bristol Energy | Bristol, CT | 108.5 GWh |
| #37 | Covanta Southeastern Connecticut Company | Preston, CT | 108.5 GWh |
| #38 | Wheelabrator Lisbon | Lisbon, CT | 100.8 GWh |
| #40 | Harrisburg Facility | Harrisburg, PA | 100.7 GWh |
| #41 | Wheelabrator Concord Facility | Concord, NH | 93.5 GWh |
| #42 | Kent County Waste to Energy Facility | Grand Rapids, MI | 94.0 GWh |
| #43 | Regional Waste Systems | Portland, ME | 87.1 GWh |
| #44 | McKay Bay Facility | Tampa, FL | 86.2 GWh |
| #45 | Wheelabrator Gloucester LP | Westville, NJ | 84.6 GWh |
| #46 | Covanta Lake County Energy | Okahumpka, FL | 84.0 GWh |
| #47 | Covanta Stanislaus Energy | Crows Landing, CA | 61.9 GWh |
| #48 | Covanta Marion Inc | Brooks, OR | 53.0 GWh |
| #49 | MacArthur Waste to Energy Facility | Ronkonkoma, NY | 52.4 GWh |
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