APS-Q537
400 MW hybrid in Pinal, AZ · In queue since September 2023 · Proposed COD June 2027
400 MW
Capacity
1
Components
Solar
2y 8m
In Queue
In Progress (unknown study)
IA Status
COD target: 2027
Total Duration
3y 9m
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: 2027-06-01
APS-Q537 is a proposed 400 MW hybrid solar and battery project located in Pinal County, Arizona. The development project consists of 400 MW of solar generation capacity. It is listed in the Arizona Public Service (APS) interconnection queue, with an entry date of September 7, 2023, and a proposed commercial operation date of June 1, 2027.
The interconnection agreement for APS-Q537 is currently listed as "In Progress (unknown study)". The point of interconnection is specified as 3 Miles South of the Milligan 230KV Substation. The project has appeared in recent news coverage regarding energy development in the region.
Generated from interconnection queue and public data sources
State
AZ
County
Pinal
Grid Region
Mountain West
Market
—
Developer
—
Utility
Arizona Public Service
Entity
APS
Service Type
—
Point of Interconnection
3 Miles South of the Milligan 230KV 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.
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