Query
Harry D Mattison Gas Plant
Type
Entity Briefing
Entity
Harry D Mattison Gas Plant
Technology
gas
Generated
2026-10-17T06:19:55.019Z

Briefing on Harry D Mattison Gas Plant

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
349 MW
Capacity
Standby
Current status
2007
Operating since
4
Generators
9.0%
Capacity factor
279 GWh
Annual generation
Briefing/plantStandby

Harry D Mattison Gas Plant is a 349 MW Natural Gas Fired Combustion Turbine asset in SPP (Southwest Power Pool), currently Standby.

Harry D Mattison Gas Plant is reported in Arkansas since 2007 under American Electric Power Company. Available operating and financial measures include 9.0% capacity factor and 279 GWh annual generation; $378/kW reported CapEx.

Location
Washington, Arkansas
Technology
Natural Gas Fired Combustion Turbine
Owner / parent
American Electric Power Company
Operator
Southwestern Electric Power Co
Grid
SPP (Southwest Power Pool)
Plant ID
56328

What stands out

1

Harry D Mattison Gas Plant is a 349 MW Natural Gas Fired Combustion Turbine asset in Arkansas with status Standby.

2

Latest annual operating measures report 9.0% capacity factor and 279 GWh annual generation.

3

Available financial measures include $65.2/MWh OpEx, $378/kW CapEx.

Market and operating context

ISO / market
SPP (Southwest Power Pool)
Balancing authority
Southwest Power Pool
NERC region
MRO
State rank
#9 of 20
National rank
#616 of 2,025

Why it matters

For this asset in SPP (Southwest Power Pool), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.