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135 MW Distillate Oil operating in Clay, SD — Southwest Power Pool
135 MW
Nameplate Capacity
2
Generators
units
Petroleum Liquids
Technology
1978
Operating Since
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Basin Electric Power Coop | — | — |
| Owner(s) | Basin Electric Power Coop | — | — |
| Status | Operating | — | — |
The Spirit Mound plant is a 135 MW petroleum-fueled power plant located in Clay County, South Dakota. It began operating in 1978 and is owned and operated by Basin Electric Power Cooperative. The plant consists of two generators utilizing petroleum liquids as their primary fuel source. Spirit Mound operates within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region.
The plant's latest annual generation was 2,350 MWh, resulting in a capacity factor of 0.2%. According to available data, the installed cost of the plant was $211.2 per kW. Spirit Mound is the second-largest of three petroleum-fueled plants in South Dakota, and ranks 49th out of 60 similar 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
72 MWh
Latest Month
2.4K MWh
Annual Generation
0.2%
Capacity Factor
CO₂ Intensity
2208 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
12 lb/MWh
SO₂
basin electric power cooperative (pudl determined) · Data from 2019–2024
$211/kW
Installed Cost
$0/kW
Annual CapEx
$491.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
SPP
LMP Node
WAUESPIRITMUNSPIRIT_1_UNIT_RA
Pricing Hub
SPP North Hub
Node Source
EIA-860 direct report
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ask pi about Spirit MoundSouthwest Power Pool (SWPP)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
7 lb/MWh
CH₄
0.089 lb/MWh
N₂O
0.018 lb/MWh
Capacity Factor
0.7%
Annual Net Gen
9 GWh
CO₂eq
2216 lb/MWh
Subregion
MRO West