Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/65008
EIA plant 65008
Sheboygan Cedar Grove · Sheboygan · WI
Onion River
Operated by Wisconsin Power & Light Co
Published location
Where is Onion River?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
43.600200, -87.896589
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.
16,068
211,575
312,531
419,272
520,412
622,636
728,989
823,163
921,268
1018,996
116,959
126,306
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 | 6,068 |
| 2 | 11,575 |
| 3 | 12,531 |
| 4 | 19,272 |
| 5 | 20,412 |
| 6 | 22,636 |
| 7 | 28,989 |
| 8 | 23,163 |
| 9 | 21,268 |
| 10 | 18,996 |
| 11 | 6,959 |
| 12 | 6,306 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 6,068 MWh |
| 2 | 11,575 MWh |
| 3 | 12,531 MWh |
| 4 | 19,272 MWh |
| 5 | 20,412 MWh |
| 6 | 22,636 MWh |
| 7 | 28,989 MWh |
| 8 | 23,163 MWh |
| 9 | 21,268 MWh |
| 10 | 18,996 MWh |
| 11 | 6,959 MWh |
| 12 | 6,306 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| PV1 | Solar Photovoltaic | SUN | 150 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
65008
Sector
Electric Utility
Water source
Unavailable
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 Onion River 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 Onion River
Variation in the published months
Across 12 numeric monthly generation entries, 7 has the highest recorded value (28,989 MWh) and 1 the lowest (6,068 MWh). Their difference is 22,921 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 |
|---|---|---|---|---|---|
| PV1 | Solar Photovoltaic | 150.0 | 150.0 | 150.0 | Not supplied |
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.