TEP-174
800 MW generation in Pima, AZ · In queue since June 2024 · Proposed COD December 2027
800 MW
Capacity
1
Components
Gas
1y 11m
In Queue
—
IA Status
COD target: 2027
Total Duration
3y 6m
Interconnection request submitted to ISO/RTO
Project undergoes interconnection studies to assess grid impact.
Typical: 18–36 months
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2027-12-31
TEP-174 is a proposed 800 MW gas-fired generation project located in Pima County, Arizona. The project is being developed by Tucson Electric Power Company (TEP). It entered the CAISO interconnection queue on June 14, 2024, with a proposed commercial operation date of December 31, 2027. The point of interconnection is the Irvington 138kV Substation.
The project consists of 800 MW of gas-fired generation capacity. It is currently listed as active in the interconnection queue.
Generated from interconnection queue and public data sources
State
AZ
County
Pima
Grid Region
Mountain West
Market
—
Developer
—
Utility
Tucson Electric Power Company
Entity
TEP
Service Type
—
Point of Interconnection
Irvington 138kV Substation
Data Source
LBNL
- ISO / RTO
- MOUNTAIN_WEST
- Trading Hub
- PALOVERDE
- Hub Confidence
- UNKNOWN
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
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