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655 MW Natural Gas operating in Mohave, AZ — Griffith Energy, LLC
655 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2002
Operating Since
Coordinates
35.0540, -114.1333
County
Mohave, AZ
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Griffith Energy LLC | Griffith Energy | — |
| Owner(s) | Griffith Energy LLC | ArcLight Capital Holdings | — |
| Status | Operating | — | — |
Griffith Energy LLC is a 655 MW natural gas-fired combined cycle power plant located in Mohave County, Arizona. The plant began operating in 2002 and consists of three generators. It is owned by ArcLight Capital Holdings and operated by Griffith Energy LLC. The plant is within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is Griffith Energy, LLC.
In the most recent year of data, Griffith Energy LLC generated 3,781,278 MWh of electricity, achieving a capacity factor of 66.0%. The plant is ranked as the 15th largest in Arizona out of 26 plants, and 354th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
382.9K MWh
Latest Month
3.8M MWh
Annual Generation
66.0%
Capacity Factor
CO₂ Intensity
861 lb/MWh
NOx
0.065 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $632.2M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-26
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ask pi about Griffith Energy LLCGriffith Energy, LLC (GRIF)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0.004 lb/MWh
CH₄
0.016 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
64.0%
Annual Net Gen
3671 GWh
CO₂eq
862 lb/MWh
Subregion
WECC Southwest