Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
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
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
159.3K MWh
Latest Month
918.7K MWh
Annual Generation
17.4%
Capacity Factor
CO₂ Intensity
2349 lb/MWh
NOx
1 lb/MWh
SO₂
Steam turbine · Northern States Power Company (Minnesota) · Data from 2015–2022
$1,198/kW
Installed Cost
$-0/kW
Annual CapEx
$47.7/MWh
Operating Cost
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 7 articlesMidcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
1 lb/MWh
CH₄
0.250 lb/MWh
N₂O
0.036 lb/MWh
Capacity Factor
17.7%
Annual Net Gen
928 GWh
CO₂eq
2365 lb/MWh
Subregion
MRO West