Query
Grandfather Falls
Type
Entity Briefing
Entity
Grandfather Falls
Generated
2026-10-17T09:32:39.917Z

Briefing on Grandfather Falls

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
17 MW
Capacity
Operating
Current status
1938
Operating since
2
Generators
53.2%
Capacity factor
80 GWh
Annual generation
Briefing/plantOperating

Grandfather Falls is a 17 MW Conventional Hydroelectric asset in MISO (Midcontinent), currently Operating.

Grandfather Falls is reported in Wisconsin since 1938 under WEC Energy Group. Available operating and financial measures include 53.2% capacity factor and 80 GWh annual generation; $1553/kW reported CapEx.

Location
Lincoln, Wisconsin
Technology
Conventional Hydroelectric
Owner / parent
WEC Energy Group
Operator
Wisconsin Public Service Corp
Grid
MISO (Midcontinent)
Plant ID
4063

What stands out

1

Grandfather Falls is a 17 MW Conventional Hydroelectric asset in Wisconsin with status Operating.

2

Latest annual operating measures report 53.2% capacity factor and 80 GWh annual generation.

3

Available financial measures include $19.2/MWh OpEx, $1553/kW CapEx.

4

Latest linked story: “Aged penstocks replaced at Grandfather Falls; will increase efficiency” (WSAW, 2017-06-06).

Market and operating context

ISO / market
MISO (Midcontinent)
Balancing authority
Midcontinent Independent Transmission System Operator, Inc..
NERC region
RFC
State rank
#10 of 61
National rank
#515 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.