Du Bay
Portage County, Wisconsin · EIA plant ID 3972 · Operator: Consolidated Water Power Co
Nameplate7MWSummer 7 MW
Generators4in service
Net generation36GWh12 mo to Dec 2025
Capacity factor58%hydro units, summer MW
Heat rate—thermal plants only
First online1942
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 42.3 | 67.0% | — |
| 2002 | 50.6 | 80.2% | — |
| 2003 | 33.8 | 53.6% | — |
| 2004 | 33.8 | 53.4% | — |
| 2005 | 29 | 46.0% | — |
| 2006 | 33.3 | 52.8% | — |
| 2007 | 30 | 47.5% | — |
| 2008 | 25.4 | 40.2% | — |
| 2009 | 28.6 | 45.4% | — |
| 2010 | 38.7 | 61.3% | — |
| 2011 | 42.8 | 67.9% | — |
| 2012 | 28.8 | 45.5% | — |
| 2013 | 35.7 | 56.6% | — |
| 2014 | 42.1 | 66.8% | — |
| 2015 | 44.6 | 70.8% | — |
| 2016 | 53.3 | 84.3% | — |
| 2017 | 48.8 | 77.4% | — |
| 2018 | 44.2 | 70.0% | — |
| 2019 | 49.1 | 77.8% | — |
| 2020 | 50.7 | 80.2% | — |
| 2021 | 43.5 | 69.0% | — |
| 2022 | 38.7 | 61.4% | — |
| 2023 | 33.2 | 52.6% | — |
| 2024 | 43.1 | 68.1% | — |
| 2025 | 36.5 | 57.8% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 1.2 | 1.2 | Jan 1942 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 2 | 2 | Jan 1942 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 2 | 2 | Jan 1942 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 2 | 2 | Jan 1942 | Operating | — | coming soon |
Owner / operator
Operator: Consolidated Water Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Consolidated Water Power Co | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Mosinee Mill | 23 MW | 14.1 km |
| Stevens Point | 5 MW | 17.4 km |
| Whiting | 5 MW | 20.4 km |
| Weston RICE | 132 MW | 21.3 km |
| Weston | 946 MW | 21.8 km |
| Portage Solar, LLC | — | 24.7 km |