APS-Q384
125 MW storage in Maricopa, AZ · In queue since March 2021 · Proposed COD October 2025
125 MW
Capacity
1
Components
Battery
5y 4m
In Queue
Suspended
IA Phase
COD target: 2025
Total Duration
4y 7m
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: 2025-10-01
APS-Q384 is a proposed 125 MW battery storage project located in Maricopa County, Arizona. The project is in the Arizona Public Service (APS) interconnection queue with a queue entry date of March 31, 2021, and a proposed commercial operation date of October 1, 2025. The interconnection agreement status is listed as "In Progress (unknown study)".
The project, being developed by APS, consists entirely of battery storage. The point of interconnection is the Westwing 69kV Substation. The project has appeared in recent news coverage regarding energy storage development in Arizona.
Generated from interconnection queue and public data sources
Realization risk through commissioning — schedule slippage, construction cost overrun, and COD probability vs the stated window. The diligence view that determines whether the project comes online when promised. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
AZ
County
Maricopa
Grid Region
Mountain West
Market
—
Developer
—
Utility
Arizona Public Service
Entity
APS
Service Type
NRIS
Point of Interconnection
Westwing 69kV Substation
Data Source
LBNL
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — first-year production estimate and 10-year P50 trajectory, with curtailment risk decomposed by congestion zone and ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, first-year DSCR, and construction cost overrun exposure — what determines whether the deal clears its covenants once online. Projected across price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- 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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Ask about Project APS-Q384Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
