Query
Sandstone Rapids
Type
Entity Briefing
Entity
Sandstone Rapids
Generated
2026-10-17T17:51:25.069Z

Briefing on Sandstone Rapids

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
4 MW
Capacity
Operating
Current status
1925
Operating since
2
Generators
26.3%
Capacity factor
9 GWh
Annual generation
Briefing/plantOperating

Sandstone Rapids is a 4 MW Conventional Hydroelectric asset in MISO (Midcontinent), currently Operating.

Sandstone Rapids is reported in Wisconsin since 1925 under WEC Energy Group. Available operating and financial measures include 26.3% capacity factor and 9 GWh annual generation; $1349/kW reported CapEx.

Location
Marinette, Wisconsin
Technology
Conventional Hydroelectric
Owner / parent
WEC Energy Group
Operator
Wisconsin Public Service Corp
Grid
MISO (Midcontinent)
Plant ID
4074

What stands out

1

Sandstone Rapids is a 4 MW Conventional Hydroelectric asset in Wisconsin with status Operating.

2

Latest annual operating measures report 26.3% capacity factor and 9 GWh annual generation.

3

Available financial measures include $28.4/MWh OpEx, $1349/kW CapEx.

Market and operating context

ISO / market
MISO (Midcontinent)
Balancing authority
Midcontinent Independent Transmission System Operator, Inc..
NERC region
RFC
State rank
#33 of 61
National rank
#979 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.