33.4 MW Hydro operating in Sauk, WI — Midcontinent Independent Transmission System Operator, Inc..
33.4 MW
Nameplate Capacity
8
Generators
units
Conventional Hydroelectric
Technology
1915
Operating Since
Coordinates
43.3100, -89.7276
County
Sauk, WI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wisconsin Power & Light Co | — | — |
| Owner(s) | Wisconsin Power & Light Co | — | — |
| Status | Operating | — | — |
The Prairie Du Sac hydroelectric plant is located in Sauk County, Wisconsin. It is owned and operated by Wisconsin Power & Light Co. The plant has a total capacity of 33.4 MW consisting of 8 generators utilizing conventional hydroelectric technology and water as its primary fuel source. Prairie Du Sac began operating in 1915. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority.
In the most recent year with available data, Prairie Du Sac generated 143,782 MWh, achieving a capacity factor of 49.1%. The plant is ranked 6th out of 65 hydroelectric facilities in Wisconsin and 388th out of 1464 nationally. Financial data indicates an installed cost of $3,572.14 per kW. The plant is located within the MRO NERC region.
Generated from EIA, GEM, and public data sources
NERC Region
MRO
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
69 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
11.0K MWh
Latest Month
143.8K MWh
Annual Generation
49.1%
Capacity Factor
$3,927/kW
Installed Cost
$7.0/MWh
Operating Cost
Wisconsin Power and Light Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
ALTE.PDSG1S1
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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