TEP-125
1,000 MW hybrid in Apache, AZ · In queue since June 2022 · Proposed COD December 2025
1,000 MW
Capacity
1
Components
Solar
3y 11m
In Queue
—
IA Status
COD target: 2025
Total Duration
3y 6m
Schedule
4 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: 2025-12-31
TEP-125 is a proposed 1000 MW hybrid solar and battery project located in Apache County, Arizona. The project, being developed by Tucson Electric Power Company (TEP), consists of 1000 MW of solar generation capacity. It is currently active in the transmission interconnection queue for the West region, under queue ID TEP-125, with an entry date of June 28, 2022.
The proposed commercial operation date (COD) for the project is December 31, 2025. The point of interconnection (POI) is the Springerville 345kV Substation. The project has appeared in recent news coverage regarding Tucson Electric Power's renewable energy development plans.
Generated from interconnection queue and public data sources
State
AZ
County
Apache
Grid Region
Mountain West
Market
—
Developer
—
Utility
Tucson Electric Power Company
Entity
TEP
Service Type
—
Point of Interconnection
Springerville 345kV 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.
