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351 MW Natural Gas operating in Cass, MO — Southwest Power Pool
351 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2005
Operating Since
Coordinates
38.6803, -94.4824
County
Cass, MO
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Evergy Missouri West | Evergy Missouri West | — |
| Owner(s) | Evergy Missouri West | Evergy | — |
| Status | Operating | — | — |
South Harper is a 351 MW natural gas-fired power plant located in Cass County, Missouri. The plant, which began operating in 2005, is owned by Evergy and operated by Evergy Missouri West. It consists of three natural gas-fired combustion turbine generators. South Harper is within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region. The plant ranks as the 11th largest in Missouri out of 20 plants, and 595th nationally out of 945 plants.
In the most recent year of record, South Harper generated 284,455 MWh of electricity, resulting in a capacity factor of 9.2%. Financial data indicates an installed cost of $315.39 per kW, according to FERC filings.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
18.4K MWh
Latest Month
284.5K MWh
Annual Generation
9.2%
Capacity Factor
CO₂ Intensity
1547 lb/MWh
NOx
0.691 lb/MWh
SO₂
Gas turbine · KCP&L Greater Missouri Operations Company · Data from 2015–2024
$360/kW
Installed Cost
$3/kW
Annual CapEx
$54.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
South Harper Substation · 161 kV
Substation Distance
< 10 km
Operator
Evergy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
MPSSHARPER-UN1
Pricing Hub
SPP South Hub
Alt. Hub / Zone
SPP North Hub
Node Source
EIA-860 direct report
Last updated 2026-03-14
View all articlesNo ask pi reports yet for this entity.
ask pi about South HarperSouthwest Power Pool (SWPP)
Grid Voltage
161.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.008 lb/MWh
CH₄
0.026 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
5.9%
Annual Net Gen
180 GWh
CO₂eq
1548 lb/MWh
Subregion
SPP North