PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/4063
EIA plant 4063
Irma · Lincoln · WI
Grandfather Falls
Operated by Wisconsin Public Service Corp
Published location
Where is Grandfather Falls?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
45.301900, -89.791700
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.
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 6,418 MWh |
| 2 | 4,594 MWh |
| 3 | 4,065 MWh |
| 4 | 6,946 MWh |
| 5 | 9,988 MWh |
| 6 | 10,369 MWh |
| 7 | 8,630 MWh |
| 8 | 6,942 MWh |
| 9 | 6,475 MWh |
| 10 | 3,837 MWh |
| 11 | 5,680 MWh |
| 12 | 6,448 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 1 | Conventional Hydroelectric | WAT | 11 | OP |
| 2 | Conventional Hydroelectric | WAT | 6.2 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
4063
Sector
Electric Utility
Water source
Wisconsin River
Data edition
2024-final