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Tucson Electric Power

Tucson Electric Power Company

AZ · electric

Current parent: Fortis
Open cases: 1
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

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Tucson Electric Power 2025 rate case

E-01933A-25-0103 · Opened Jun 1, 2025

Open

filed

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
Annual revenue change	Jun 1, 2025	utility request	—	The official launch source identifies the active case but does not state this requested value.
Residential monthly bill impact	Jun 1, 2025	utility request	—	The official launch source identifies the active case but does not state this requested value.
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.