598.4 MW Sub. Coal operating in Washington, MN — Midcontinent Independent Transmission System Operator, Inc..
598.4 MW
Nameplate Capacity
1
Generators
unit
Conventional Steam Coal
Technology
1958
Operating Since
Coordinates
45.0300, -92.7786
County
Washington, MN
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Northern States Power Co - Minnesota | — | — |
| Owner(s) | Northern States Power Co - Minnesota | — | — |
| Status | Operating | — | — |
The Allen S King power plant is located in Washington County, Minnesota. It has a total capacity of 598.4 MW and began operating in 1958. The plant is owned and operated by Northern States Power Co - Minnesota. It utilizes a single generator with conventional steam coal technology, using subbituminous coal (SUB) as its primary fuel. The plant operates within the Midcontinent Independent Transmission System Operator, Inc. balancing authority and the MRO NERC region.
In the most recent year with available data, the Allen S King plant generated 918,722 MWh of electricity, achieving a capacity factor of 17.4%. The plant's installed cost was $1161.16 per kW, according to FERC data. Allen S King is ranked as the 3rd largest of 4 coal plants in Minnesota, and 51st of 75 coal plants nationally.
Generated from EIA, GEM, and public data sources
NERC Region
MRO
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
159.3K MWh
Latest Month
918.7K MWh
Annual Generation
17.4%
Capacity Factor
$1,198/kW
Installed Cost
$47.7/MWh
Operating Cost
Northern States Power Company (Minnesota)
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
King Plant Substation · 345 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
NSP KING KING_1_UNIT
Pricing Hub
MINN.HUB
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all 9 articles