APS seeks $579.5M rate increase (13.99%) in 2025 Rate Case filing with ACC

ARIZONA PUBLIC SERVICE CO

APS filed for a net base rate increase of $579.5M (13.99%), addressing $662.4M revenue deficiency.
Proposed original cost rate base of $12.5B as of Dec 31, 2024, including post-test year plant through 2025.
Capital structure: 47.65% debt (4.26% cost), 52.35% equity (10.7% cost); WACC 7.63%.
Requested effective date in second half 2026; outcome and timing uncertain pending ACC decision.
Amendment corrects original cost rate base amount in prior 8-K; no other changes.

item 8.01

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