Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/4271
EIA plant 4271
Alma · Buffalo · WI
John P Madgett
Operated by Dairyland Power Coop
Published location
Where is John P Madgett?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
44.303583, -91.912647
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the WI plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
1148,656
259,724
394,230
437,053
536,614
670,106
791,914
898,173
951,628
109,408
1199,319
12117,452
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | 148,656 |
| 2 | 59,724 |
| 3 | 94,230 |
| 4 | 37,053 |
| 5 | 36,614 |
| 6 | 70,106 |
| 7 | 91,914 |
| 8 | 98,173 |
| 9 | 51,628 |
| 10 | 9,408 |
| 11 | 99,319 |
| 12 | 117,452 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 148,656 MWh |
| 2 | 59,724 MWh |
| 3 | 94,230 MWh |
| 4 | 37,053 MWh |
| 5 | 36,614 MWh |
| 6 | 70,106 MWh |
| 7 | 91,914 MWh |
| 8 | 98,173 MWh |
| 9 | 51,628 MWh |
| 10 | 9,408 MWh |
| 11 | 99,319 MWh |
| 12 | 117,452 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 1 | Conventional Steam Coal | SUB | 387 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
4271
Sector
Electric Utility
Water source
Mississippi River
Data edition
2024-final
Use this record
Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right John P Madgett power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at John P Madgett
Variation in the published months
Across 12 numeric monthly generation entries, 1 has the highest recorded value (148,656 MWh) and 10 the lowest (9,408 MWh). Their difference is 139,248 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | 387.0 | 389.8 | 392.5 | 125.0 |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.