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Meet the Commissioners

Lea Márquez Peterson

Commissioner

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Learn about the rate case process.  Click on the link by RUCO.

https://ruco.az.gov/about/rate-making-process

 

May 1, 2026
Read Article: Commissioner Lea Márquez Peterson's April 2026 Newsletter
Mar 30, 2026
Read Article: Commissioner Lea Márquez Peterson's March Newsletter
Mar 27, 2026
Read Article: Commissioner Lea Márquez Peterson Opens Formal Inquiry into Potential Use of Artificial Intelligence in Utilities’ Operations
Mar 2, 2026
Read Article: Commissioner Lea Márquez Peterson's February Newsletter
Feb 19, 2026
Read Article: Commissioner Lea Márquez Peterson’s Statement on Her Vote Opposing the UNS Gas Rate Case and the Formula Rate Design
Jan 28, 2026
Read Article: Commissioner Lea Márquez Peterson January Newsletter
Dec 19, 2025
Read Article: Commissioner Lea Márquez Peterson's December Newsletter
Dec 5, 2025
Read Article: ACC Approves TEP Energy Supply Agreement, Ensures Customer Protections from Costs Related to Data Center Project
Dec 1, 2025
Read Article: Commissioner Lea Márquez Peterson's November Newsletter
Oct 30, 2025
Read Article: Commissioner Lea Márquez Peterson's October Newsletter
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Contact Commissioner Lea Márquez Peterson

Commissioners and their advisors are prohibited from communicating in writing, by phone or in person with individuals about the merits of any currently active contested case. All emails and letters received related to current contested cases will be filed with Docket Control and available for public inspection.  See the Commission’s Ex Parte Rule and FAQs.

Mailing:

Arizona Corporation Commission
Commissioners Wing
1200 W. Washington St., 2nd Floor,
Phoenix, Arizona 85007

Phone:

(602) 542-3625

Email:

lmarquezpeterson-web@azcc.gov

Fax:

(602) 542-3977

Social:

@LeaPeterson

Consumer Fraud Complaints:

Attorney General Online Portal

Other Commissioners

Rachel Walden

Vice Chair

Commissioner Thompson

Kevin Thompson

Commissioner

Commissioner Myers

Nick Myers

Chair

René Lopez

Commissioner

Arizona Corporation Commission
Phoenix Office
1200 W. Washington Street
Phoenix, AZ 85007

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Arizona Corporation Commission
Phoenix Office
1300 W. Washington Street
Phoenix, AZ 85007

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Arizona Corporation Commission
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Tucson, AZ 85701

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