- Wind & solar
- Bioenergy
- In development
- Under construction
- Operating
- 10 · 100 · 1,000 MW
Map
- Wind & solar
- Bioenergy
- In development
- Under construction
- Operating
Wilmarth: location and 2 exact-grade projects within 25 km. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Wilmarth
Power plant · Waste to energy
Key facts
Power plant · Waste to energyran 45% of 2025 Retiring- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1948
- Net generation, 2025
- 98,230 MWh
- Grid
- 69 kV to Northern States Power Co - Minnesota (MISO)
- Location
- Blue Earth County, Minnesota
- Operated by
- Northern States Power Co - Minnesota
Output
- Gas
- Biomass and waste
Details
Who’s behind it
- Owner
- Xcel Energy
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- Technology
- Waste to energy source: “Municipal Solid Waste”
- Age
- 78 years since 1948
- Heat rate
- 17,630 Btu/kWh 2025
All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Gem |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 1,731,814 |
| Capacity factor, 2025 | 0.449 |
| Heat rate (Btu/kWh), 2025 | 17,630.2 |
| Net generation (MWh), 2025 | 98,230 |
| Balancing authority code | MISO |
Retirement
EIA-860M September 2026StatusAt least half of the plant's in-service nameplate capacity is scheduled to retire, on dates its owner has reported to EIA. As of EIA-860M for September 2026.- Next scheduled retirement
- December 2037
- Capacity scheduled to retire
- 25 MW
- Generators scheduled to retire
- 2
- Share of in-service capacity scheduled
- 100%
- Capacity still in service
- 25 MW
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 1 | Municipal Solid Waste | 12.5 MW | Scheduled to retire | December 2037 |
| 2 | Municipal Solid Waste | 12.5 MW | Scheduled to retire | December 2037 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 69 kV
- Transmission or distribution system owner
- Northern States Power Co - Minnesota
- Balancing authority
- Midcontinent Independent Transmission System Operator, Inc..
- NERC region
- MRO
Transmission lines within 25 km (2)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Northern States Power Co - Minnesota | Operator | EIA-860M | ||
| Xcel Energy | Owner | 100.0% | 31 Dec 2023 | EPA GHGRP |
Timeline
- Stated Units 1, 2 scheduled to retire, 25 MW · EIA-860M
- In service · EIA-860M
Sources
6 sourcesSources EIA-860M · GEM · LBNL · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- Global Energy Monitor — Global Integrated Power Tracker (unit-level power plants, eight technologies, all statuses)Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- LBNL — A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024 (OEDI submission 8742)Yin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 25 km| Project | Kind | Away | MW |
|---|---|---|---|
| MN CSG 2019-57 Permitted | Solar | 3.5 km | 1 |
| EESolar22 Under construction | Solar | 6.6 km | 2.6 |