Griffith Energy LLC — Plant Summary
- EIA Plant ID
- 55124
- Capacity
- 655 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combined Cycle
- Status
- Operating
- Location
- Mohave, AZ
- Operating Since
- 2002
- Generators
- 3
- Operator
- Griffith Energy LLC
- Parent Company
- ArcLight Capital Holdings
- Annual Generation
- 3,781,278 MWh
- Capacity Factor
- 66.0%
- Balancing Authority
- Griffith Energy, LLC
- ISO/RTO
- —
- NERC Region
- WECC
Griffith Energy LLC
OperatingNatural Gas
Ranked #15 of 33 Natural Gas plants in AZ#351 of 2009 nationally
655 MW Natural Gas operating in Mohave, AZ — Griffith Energy, LLC
EIAWD
655 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2002
Operating Since
Location
Coordinates
35.0540, -114.1333
County
Mohave, AZ
Nearby Plants
- PPS Power Plant No 1Natural Gas120 MW · 3.2 km
- Black Mountain Solar LLCSolar9 MW · 4.4 km
- Kingman Energy StorageBESS50 MW · 8.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Griffith Energy LLC | Griffith Energy | — |
| Owner(s) | Griffith Energy LLC | ArcLight Capital Holdings | — |
| Status | Operating | — | — |
Ownership Chain
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Griffith Energy, LLC
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
382.9K MWh
Latest Month
3.8M MWh
Annual Generation
66.0%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (1)Beta
Industry·corporate
Griffith Energy to Construct 2 MW Behind-the-Meter Solar Project in Arizona
Griffith Energy, LLC, an affiliate of ArcLight Capital Partners, LLC announced its plans to construct a 2 megawatt (MW) behind-the-meter solar project.
Griffith Energy (developer)ArcLight Capital Partners, LLC (other)
Energetica India Magazine·2 years ago
Last updated 2026-03-14
View all articles