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Arizona Public Service

Arizona Public Service Company

AZ · electric

Current parent: Pinnacle West
Open cases: 2
Updated: Jul 22, 2026

Current economics

Rate base: Not available
Authorized ROE: Not available
Authorized common-equity ratio: Not available

Oversight and service

AZ Arizona Corporation Commissionelectric

Proceedings

View all utility cases →

APS 2025 rate case

E-01345A-25-0105 · Opened Jun 13, 2025

Open

testimony

Arizona large-load and data-center policy

E-00000A-25-0069 · Opened Jan 1, 2025

Open

filed

APS Extra High Load Factor tariff

E-01345A-22-0144 · Decision 79293 · Opened —

Closed

complete

Regulatory history

Effective date	Proceeding	ROE	Common equity	Rate base
Current	Current electric profile Electric · Latest supported values	— Authorized · Jul 21, 2026	— Authorized · Jul 21, 2026	— Authorized · Jul 21, 2026

View full observation log (5)

Metric	Date	Stage	Value	Scope
Common equity ratio	Jul 21, 2026	authorized	—	The Arizona launch sources do not state a current authorized common equity ratio for this electric jurisdiction.
Rate base	Jul 21, 2026	authorized	—	The Arizona launch sources do not state a current authorized rate base for this electric jurisdiction.
Return on equity	Jul 21, 2026	authorized	—	The Arizona launch sources do not state a current authorized return on equity for this electric jurisdiction.
Annual revenue change	Jun 13, 2025	utility request	—	The official launch source identifies the active case but does not state this requested value.
Residential monthly bill impact	Jun 13, 2025	utility request	—	The official launch source identifies the active case but does not state this requested value.