Madelia
Oil power plant in Watonwan County, Minnesota. 11.8 MW of nameplate capacity across 5 generators, operated by City of Madelia - (MN).
Also known as Mandelia Municipal Light & Power · EIA plant 30
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 11.8 MWNameplate
- Generators
- 5 operatingEIA-860M, August 2026
- Operating since
- March 1954First generator online
- Operator
- City of Madelia - (MN)EIA operator ID 29305
- Grid
- MISOBalancing authority MISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Watonwan County, MN44.0501, −94.4178
- EIA plant ID
- 30EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Madelia produces
Free · EIA-923Net generation, 2025
−157 MWh
−157 MWh, final
Capacity factor, 2025
-0.2%
2024: -0.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
−208.0–−99.0
MWh a year. Low 2015, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 495 | Not reported | 12 of 12 |
| 2002 | 173 | Not reported | 12 of 12 |
| 2003 | 437 | Not reported | 12 of 12 |
| 2004 | 12 | Not reported | 12 of 12 |
| 2005 | 611 | Not reported | 12 of 12 |
| 2006 | 104 | Not reported | 12 of 12 |
| 2007 | −207 | Not reported | 12 of 12 |
| 2008 | −113 | Not reported | 12 of 12 |
| 2009 | −203 | Not reported | 12 of 12 |
| 2010 | −229 | -0.2% | 12 of 12 |
| 2011 | −223 | -0.2% | 12 of 12 |
| 2012 | −201 | -0.2% | 12 of 12 |
| 2013 | −194 | -0.2% | 12 of 12 |
| 2014 | −140 | -0.1% | 12 of 12 |
| 2015 | −208 | -0.2% | 12 of 12 |
| 2016 | −163 | -0.2% | 12 of 12 |
| 2017 | −181 | -0.2% | 12 of 12 |
| 2018 | −206 | -0.2% | 12 of 12 |
| 2019 | −119 | -0.1% | 12 of 12 |
| 2020 | −147 | Not reported | 12 of 12 |
| 2021 | −200 | -0.2% | 12 of 12 |
| 2022 | −173 | -0.2% | 12 of 12 |
| 2023 | −121 | -0.1% | 12 of 12 |
| 2024 | −99 | -0.1% | 12 of 12 |
| 2025 | −157 | -0.2% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Petroleum Liquids | 3.1 | May 2001 |
| 2 | Petroleum Liquids | 2.0 | June 1965 |
| 3 | Petroleum Liquids | 1.1 | January 1959 |
| 4 | Petroleum Liquids | 4.3 | June 1973 |
| 5 | Petroleum Liquids | 1.3 | March 1954 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists City of Madelia - (MN) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Madelia
Questions about Madelia
How much power does Madelia produce?
Madelia reported −157 MWh (−157 MWh) of net generation in 2025.
Where is Madelia?
Madelia is in Watonwan County, Minnesota, at 44.0501, −94.4178. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Madelia?
EIA-860M for August 2026 lists City of Madelia - (MN) as the operator (EIA operator ID 29305). The operator is not always the owner.
When did Madelia start operating?
Its first generator began operating in March 1954, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page