APS-Q408
88 MW storage in Maricopa, AZ · In queue since September 2021 · Proposed COD December 2025
88 MW
Capacity
1
Components
Battery
4y 8m
In Queue
Cluster Study
IA Status
COD target: 2025
Total Duration
4y 3m
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
APS-Q408 is a proposed 88 MW battery storage project located in Maricopa County, Arizona. The project, under development by Arizona Public Service (APS), entered the Arizona Public Service interconnection queue on September 28, 2021, with a proposed commercial operation date of December 1, 2025. Its interconnection status is currently in the Cluster Study phase.
The point of interconnection (POI) for the project is a new 69kV substation to be constructed near the intersection of Butler Road and Dysart Road in Maricopa County, AZ.
Generated from interconnection queue and public data sources
State
AZ
County
Maricopa
Grid Region
Mountain West
Market
—
Developer
—
Utility
Arizona Public Service
Entity
APS
Service Type
—
Point of Interconnection
a new to be constructed 69kV substation located near the intersections of Butler Road and Dysart Road in Maricopa County, AZ
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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