UniSource Energy Services’ daily operations are supervised by local managers who are committed to providing safe, reliable service to their communities. Electric service is provided through a UES subsidiary called UNS Electric, Inc., while natural gas service is provided through a subsidiary called UNS Gas, Inc. These local efforts are overseen and supported by executives at UES’ Tucson-based parent company, UNS Energy Corporation, and sister company Tucson Electric Power (TEP).
UES Management Team
- Terry Nay, Senior Director, UniSource Energy Services Gas and Electric
- Martin Anaya, Director, UniSource Energy Services Gas
- Lynne Petersen, Director, Mohave County Electric
- Roberto Guevara, Director, Santa Cruz County Gas & Electric and Operational Excellence
President and Chief Executive Officer
Susan was named Chief Executive Officer of UNS Energy and its subsidiaries, including Tucson Electric Power and UniSource Energy Services, by the UNS Energy Board of Directors, effective January 1, 2021. She is the first woman to lead the company and has championed efforts to promote the engagement and achievement of women in the traditionally male-dominated utility industry.
Susan, who had served as the company’s President and Chief Operating Officer, succeeds CEO David G. Hutchens, who was named President and Chief Executive Officer of Fortis Inc., UNS Energy’s parent company.
She began her career as a student intern at TEP in 1994. She was hired as system engineer in 1997 and advanced through several engineering and leadership roles before being named Vice President of Energy Delivery in 2015. She was promoted to Senior Vice President and Chief Operating Officer in 2019, and named President of UNS Energy in 2020.
Susan earned a bachelor’s degree in electrical engineering and an MBA from the University of Arizona, where she serves on advisory boards for the UA’s Eller Graduate School of Management and College of Engineering. She also serves on the board of the Boys and Girls Clubs of Southern Arizona and is a member of the Southern Arizona Leadership Council.
Frank P. Marino
Senior Vice President and Chief Financial Officer
Frank became Senior Vice President and Chief Financial Officer in 2019, having previously served as Vice President and CFO. Before joining TEP in 2013, Frank was a Vice President and Chief Financial Officer of the wind and solar businesses of the AES Corporation, a global power company. Frank is a Certified Public Accountant and has a bachelor’s degree in accounting from the State University of New York and an MBA from Fairleigh Dickinson University.
Vice President, System Operations and Energy Resources
Erik joined TEP as a Corporate Counsel in 2000 after earning a bachelor’s degree in political science from Arizona State University and a juris doctorate from the University of Arizona. He advanced through management positions in Land Resources and Environmental Services and was promoted to Senior Director of Transmission & Environmental Services in 2014. He was promoted to Vice President of Transmission & Distribution Planning and Environmental in 2018 before taking on expanded responsibilities in his current role.
Vice President, Customer Experience, Programs and Pricing
Dallas joined TEP in 2004 as Director of Corporate Accounting after serving as Divisional Controller for Citizens Gas & Coke Utility (now Citizens Energy Group) in Indianapolis. He became Director of Rates and Revenue Requirements in 2005 and was later promoted to Senior Director in that role, eventually assuming oversight of new programs and services, customer services and analytics, renewable energy and energy efficiency programs. He was promoted to Vice President in 2019. Dallas is a Certified Public Accountant and earned a bachelor’s degree in accounting from Indiana University and an MBA from Anderson University.
Vice President, Energy Delivery
Cynthia joined TEP in 2000 as a Lead Accountant. She transitioned to T&D in 2005, serving as a Supervisor and Project Manager before being promoted to Lead Superintendent in 2013. She rose to Director of Project Delivery in 2014 and was promoted to Senior Director of Operations in 2016. She was promoted to Vice President in January 2020. Cynthia holds a bachelor’s degree in business administration from the University of Arizona.
Todd C. Hixon
Senior Vice President and General Counsel
Todd joined TEP as a corporate counsel in 1998 after three years in private practice. He rose through leadership positions in the Legal Services Department and served as general counsel for Millennium Energy Holdings, a UNS Energy subsidiary that has overseen unregulated investments. Todd was named Associate General Counsel of UniSource Energy in 2010, and was promoted to Vice President and General Counsel the following year. He has a bachelor’s degree in architecture and earned a juris doctorate from the University of Arizona.
Vice President, Special Projects
Mark joined the company in 2008, serving as Senior Director of Generation before being being named Vice President of Energy Resources. Prior to joining TEP, Mark held various leadership positions at PacifiCorp Energy. He has a bachelor’s degree in mechanical engineering from Brigham Young University and an MBA from the University of Utah. Mark assumed his current role in July 2020.
Catherine E. Ries
Vice President, Talent
Before joining TEP in 2007, Catherine was Vice President of Human Resources for Clopay Building Products Company, a division of Griffon Corporation. Catherine also spent more than a dozen years in the airline industry, where she specialized in development and training.
She has a bachelor’s degree in fine arts and an MBA from Arizona State University.
Vice President, Policy Advisor
Jo joined TEP in 2003 as Director of Investor Relations after having previously served in that role at Portland General Electric. She advanced to Director of Regulatory Services in 2011 and was promoted to Senior Director of Regulatory Services and Corporate Communications in 2013.
Jo is a Certified Public Accountant and has a bachelor’s degree in accounting from Michigan State University.
Vice President, Strategic Planning and Energy Acquisition
Mike came to TEP in 1993 as an Information Services Specialist. He transitioned to Energy Settlements in 1998, where he worked as an analyst before being promoted to Manager of Resource Planning in 2001. Mike was promoted to Director of Resource Planning in 2010, and then to Senior Director of Fuels and Resource Planning in 2015. He holds a bachelor’s degree in Management Information Systems from the University of Arizona.
Vice President and Chief Information Officer
Since joining the company in 2008, Morgan has held various leadership roles within Information Services. Prior to joining TEP, he led IT departments at two global dot-coms and a regional healthcare provider. Morgan has a bachelor’s degree in information technology from Barry University and a master’s in information technology from Capella University.
Martha B. Pritz
Since joining TEP in 1999, Martha has held various leadership roles in financial planning, treasury services and capital resources before assuming her current role as Senior Director of Financial Planning and Analysis. She previously held positions with Huck International, Inc. and Total Petroleum, Inc. Martha is a CFA charterholder with a bachelor’s degree in communications from the University of Colorado-Boulder and a master’s in finance from the University of Colorado-Denver.