Electric utility data is available in many different places. Below are a few of the best.
Arizona Corporation Commission (ACC)
The ACC maintains a docket of its decisions:
It also keeps annual reports and plans:
Federal Energy Regulatory Commission (FERC)
FERC maintains a record of detailed financial and operations data:
Form 1 and Form 3 are useful.
Energy Information Administration (EIA)
EIA also maintains electricity data.
Form EIA-861 is among the most useful:
Securities Exchange Commission (SEC)
You can find also find financial and other material information on publicly-traded utilities at the SEC:
Forms 10-K, 10-Q, and 8-K are annual, quarterly, and informational reports, respectively.
