TEP-90
600 MW hybrid in Pima, AZ · In queue since January 2021 · Proposed COD December 2025
600 MW
Capacity
2
Components
Solar + Battery
5y 4m
In Queue
IA Pending
IA Status
COD target: 2025
Total Duration
4y 11m
Schedule
5 months past proposed COD
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: 2025-12-01
TEP-90 is a proposed 600 MW hybrid solar and battery project located in Pima County, Arizona. The development project, located in the West region, consists of 400 MW of solar generation coupled with 200 MW of battery energy storage. Tucson Electric Power Company (TEP) is the utility associated with the project.
The project is listed in the Tucson Electric Power Company interconnection queue as of January 27, 2021, with a proposed commercial operation date of December 1, 2025. Its interconnection agreement status is currently listed as "IA Pending". The point of interconnection is the Pinal West - South Loop 345kV.
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
Pinal West - South Loop 345kV
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.
