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24.1 MW Distillate Oil standby in Kingsbury, SD
24.1 MW
Nameplate Capacity
1
Generators
unit
Petroleum Liquids
Technology
1978
Operating Since
Coordinates
44.3654, -97.3814
County
Kingsbury, SD
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Otter Tail Power Co | Otter Tail Power | — |
| Owner(s) | Otter Tail Power Co | Otter Tail | — |
| Status | Standby | — | — |
The Lake Preston plant is a 24.1 MW electricity generating facility located in Kingsbury County, South Dakota. The plant began operating in 1978 and utilizes petroleum liquids (DFO) as its primary fuel source. It consists of a single generator. Otter Tail Power Co. operates the facility, which is owned by Otter Tail. Lake Preston ranks 5th out of 11 power plants in South Dakota and 164th out of 886 nationally.
Lake Preston operates within the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and the MRO NERC region. The plant's latest annual generation was 86 MWh, resulting in a capacity factor of 0.0%. Financial data indicates an installed cost of $171.53 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
41.6 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
6 MWh
Latest Month
86 MWh
Annual Generation
0.0%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
3275 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
17 lb/MWh
SO₂
10 lb/MWh
CH₄
0.133 lb/MWh
N₂O
0.027 lb/MWh
Capacity Factor
0.0%
Annual Net Gen
0 GWh
CO₂eq
3286 lb/MWh
Subregion
MRO West
Gas turbine · Otter Tail Power Company · Data from 2015–2024
$184/kW
Installed Cost
$-4/kW
Annual CapEx
$1287.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Point of Interconnection
Nearest Substation
Lake Preston Substation · 42 kV
Substation Distance
< 10 km
Operator
Otter Tail Power Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
OTP.HETLA
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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