107.8 MW Natural Gas operating in Pima, AZ — Tucson Electric Power Company
107.8 MW
Nameplate Capacity
4
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1972
Operating Since
Coordinates
32.4010, -111.1262
County
Pima, AZ
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Tucson Electric Power Co | Tucson Electric Power | — |
| Owner(s) | Tucson Electric Power Co | Fortis | — |
| Status | Operating | — | — |
The North Loop power plant is located in Pima County, Arizona. The plant has a total capacity of 107.8 MW across four natural gas-fired combustion turbine generators. It began operating in 1972. The plant is owned by Fortis, a Canadian company, and operated by Tucson Electric Power Co. North Loop is ranked 26th out of 26 power plants in Arizona and 919th out of 945 plants nationally.
In the most recent year with available data, North Loop generated 2,456 MWh, resulting in a capacity factor of 0.3%. The plant operates within the Tucson Electric Power Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $304.63 per kW, based on FERC data.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Tucson Electric Power Company
Grid Voltage
46 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
197 MWh
Latest Month
2.5K MWh
Annual Generation
0.3%
Capacity Factor
$476/kW
Installed Cost
$349.2/MWh
Operating Cost
Tucson Electric Power Company
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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