TEP-143
200 MW storage in Pima, AZ · In queue since November 2022 · Proposed COD December 2025
200 MW
Capacity
1
Components
Battery
3y 6m
In Queue
—
IA Status
COD target: 2025
Total Duration
3y 1m
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-143 is a proposed 200 MW battery storage project located in Pima County, Arizona. The project is being developed by Tucson Electric Power Company (TEP) and interconnected to the Vail 138kV Substation. It entered the transmission interconnection queue for the regional ISO/RTO on November 15, 2022, with a proposed commercial operation date of December 31, 2025.
The project consists entirely of battery storage, with a total capacity of 200 MW. The project 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
Vail 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.
No ask pi reports yet for this entity.
ask pi about Project TEP-143
