Query
Castle Rock
Type
Entity Briefing
Entity
Castle Rock
Generated
2026-10-17T09:38:52.733Z

Briefing on Castle Rock

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
15 MW
Capacity
Operating
Current status
1950
Operating since
5
Generators
69.9%
Capacity factor
92 GWh
Annual generation
Briefing/plantOperating

Castle Rock is a 15 MW Conventional Hydroelectric asset in MISO (Midcontinent), currently Operating.

Castle Rock is reported in Wisconsin since 1950 under Wisconsin River Power Company. Available operating and financial measures include 69.9% capacity factor and 92 GWh annual generation; $1885/kW reported CapEx.

Location
Adams, Wisconsin
Technology
Conventional Hydroelectric
Owner / parent
Wisconsin River Power Company
Operator
Wisconsin River Power Company
Grid
MISO (Midcontinent)
Plant ID
4079

What stands out

1

Castle Rock is a 15 MW Conventional Hydroelectric asset in Wisconsin with status Operating.

2

Latest annual operating measures report 69.9% capacity factor and 92 GWh annual generation.

3

Available financial measures include $16.6/MWh OpEx, $1885/kW CapEx.

4

Latest linked story: “Drawdowns at Petenwell, Castle Rock dams to create unsafe ice conditions” (WSAW, 2021-01-27).

Market and operating context

ISO / market
MISO (Midcontinent)
Balancing authority
Midcontinent Independent Transmission System Operator, Inc..
NERC region
MRO
State rank
#11 of 61
National rank
#548 of 1,462

Why it matters

For this asset in MISO (Midcontinent), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.