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SWEPCO Texas

Southwestern Electric Power Company — Texas

TX · electric

Current parent: American Electric Power Company, Inc.
Open cases: 0
Updated: Jul 14, 2026

Current economics

Rate base: $10.5B
Authorized ROE: 9.25%
Authorized common-equity ratio: 49.4%

Oversight and service

TX Public Utility Commission of Texaselectric

Proceedings

View all utility cases →

SWEPCO 2020 Texas base-rate case

51415 · Opened —

Closed

complete

Regulatory history

Effective date	Proceeding	ROE	Common equity	Rate base
Current	Current electric profile Electric · Latest supported values	9.25% Authorized · Mar 31, 2026	49.4% Authorized · Mar 31, 2026	$10.5B Disclosed actual · Dec 31, 2025

View full observation log (3)

Metric	Date	Stage	Value	Scope
Common equity ratio	Mar 31, 2026	authorized	49.4%	SWEPCO Texas retail authorized capital structure; 50.6% debt and 49.4% equity.
Rate base	Dec 31, 2025	disclosed actual	$10.5B	SWEPCO total-company rate-base proxy across Arkansas, Louisiana, Texas, and FERC wholesale operations.
Return on equity	Mar 31, 2026	authorized	9.25%	SWEPCO Texas retail authorized return on equity.