APS-Q407
200 MW storage in Maricopa, AZ · In queue since September 2021 · Proposed COD December 2025
200 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-Q407 is a proposed 200 MW battery storage project located in Maricopa County, Arizona. The project is listed in the Arizona Public Service (APS) interconnection queue, with a queue entry date of September 28, 2021, and a proposed commercial operation date of December 1, 2025. The interconnection status is currently in the Cluster Study phase.
The development project consists of 200 MW of battery capacity. The point of interconnection is at the Scatterwash 230kV substation.
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
Scatterwash 230kV
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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