Query
Prairie Island
Type
Entity Briefing
Entity
Prairie Island
State
RI
Generated
2026-10-17T20:50:04.113Z

Briefing on Prairie Island

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
1.2 GW
Capacity
Operating
Current status
1974
Operating since
2
Generators
82.4%
Capacity factor
8557 GWh
Annual generation
Briefing/plantOperating

Prairie Island is a 1.2 GW Nuclear asset in MISO (Midcontinent), currently Operating.

Prairie Island is reported in Minnesota since 1974 under Xcel Energy. Available operating and financial measures include 82.4% capacity factor and 8557 GWh annual generation; $2045/kW reported CapEx.

Location
Goodhue, Minnesota
Technology
Nuclear
Owner / parent
Xcel Energy
Operator
Northern States Power Co - Minnesota
Grid
MISO (Midcontinent)
Plant ID
1925

What stands out

1

Prairie Island is a 1.2 GW Nuclear asset in Minnesota with status Operating.

2

Latest annual operating measures report 82.4% capacity factor and 8557 GWh annual generation.

3

Available financial measures include $40.0/MWh OpEx, $2045/kW CapEx.

4

Latest linked story: “World’s ‘largest’ grid battery part of Google-Xcel Energy agreement” (Utility Dive, 2026-03-09).

Market and operating context

ISO / market
MISO (Midcontinent)
Balancing authority
Midcontinent Independent Transmission System Operator, Inc..
NERC region
MRO
State rank
#1 of 2
National rank
#45 of 58

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.