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67.5 MW Distillate Oil operating in Codington, SD — Southwest Power Pool
67.5 MW
Nameplate Capacity
1
Generators
unit
Petroleum Liquids
Technology
1978
Operating Since
Coordinates
44.9015, -97.1086
County
Codington, SD
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Missouri Basin Muni Power Agny | — | — |
| Owner(s) | Missouri Basin Muni Power Agny | — | — |
| Status | Operating | — | — |
Watertown Power Plant is a 67.5 MW petroleum-liquid-fueled facility located in Codington County, South Dakota. The plant began operating in 1978 and has one generator. It is owned and operated by Missouri Basin Municipal Power Agency. The plant is connected to the Southwest Power Pool (SPP) balancing authority and is within the Midwest Reliability Organization (MRO) NERC region.
In the most recent year of reported data, Watertown Power Plant generated 4,919 MWh of electricity, resulting in a capacity factor of 0.8%. The plant ranks as the fourth largest of 11 power plants in South Dakota, and 81st out of 886 plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
360 MWh
Latest Month
4.9K MWh
Annual Generation
0.8%
Capacity Factor
CO₂ Intensity
2284 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
13 lb/MWh
SO₂
2013
$765/kW
Est. Construction Cost
Total estimated cost: $51.6M
Point of Interconnection
Nearest Substation
Uptown Substation · 115 kV
Substation Distance
0 km
Operator
Watertown Municipal Utilities
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
WAUE.MRES.WTRN
Pricing Hub
SPP North Hub
Location Type
Settlement Location
Node Source
Curated node match
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Watertown Power PlantSouthwest Power Pool (SWPP)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
7 lb/MWh
CH₄
0.092 lb/MWh
N₂O
0.018 lb/MWh
Capacity Factor
0.9%
Annual Net Gen
5 GWh
CO₂eq
2292 lb/MWh
Subregion
MRO West