UNS Energy’s Regulated Utilities
UNS Energy Corporation
UNS Energy is the Tucson, Arizonabased parent company of Tucson Electric Power (TEP) and UniSource Energy Services (UES). TEP serves more than 414,000 customers in and around Tucson, while UES provides natural gas and electric service to about 243,000 customers in northern and southern Arizona.
UNS Energy is a subsidiary of Fortis, the largest investorowned electric and gas distribution utility in Canada. Fortis' regulated utility subsidiaries serve more than 3 million customers across Canada and in the United States and the Caribbean. Fortis also owns non regulated hydroelectric generation assets in Canada, Belize and upstate New York.
Board of Directors
- Board Chair – Robert A. Elliott, President and Owner, Elliott Accounting.
- Nora M. Duke, Executive Vice President, Sustainability and Chief Human Resource Officer of Fortis, Inc.
- Louise L. Francesconi, former President of Raytheon Missile Systems.
- David G. Hutchens, President and Chief Executive Officer of UNS Energy Corporation, Tucson Electric Power and UniSource Energy Services
- Lisa Lovallo, Market Vice President of Southern Arizona for Cox Communications
- Barry V. Perry, President of Fortis Inc.
- Ramiro G. Peru, former Executive Vice President and Chief Financial Officer of Phelps Dodge Corporation.
- Gregory A. Pivirotto, former CEO and Director of University Medical Center.
- James R. Reid, Executive Vice President, Chief Legal Officer and Corporate Secretary of Fortis, Inc.
- Joaquin Ruiz, Dean of the University of Arizona College of Science, Executive Dean of the Colleges of Letters, Arts and Sciences.
David G. Hutchens – Chief Executive Officer
David Hutchens is Chief Executive Officer of UNS Energy and its subsidiaries, including Tucson Electric Power and UniSource Energy Services. He also serves as Chief Operating Officer of Fortis Inc., UNS Energy’s parent company.
David began working for TEP in 1995 and advanced through various management positions overseeing wholesale energy trading and marketing, energy efficiency and resource planning. He was named as the company’s President in 2011 became CEO in May 2014.
David joined the Board of Directors of UNS Energy in 2013, the FortisBC Board of Directors in 2015, and the Fortis Alberta Board of Directors in 2016. He chairs the Western Energy Institute’s Board of Directors and serves on the Edison Electric Institute’s Board of Directors and Arizona’s State Energy Advisory Board.
Prior to his civilian career, David served as a nuclear submarine officer in the U.S. Navy and worked as an engineer. He earned a bachelor’s degree in aerospace engineering and master’s in business administration with an emphasis in finance from the University of Arizona.
Susan GrayPresident and Chief Operating Officer
After beginning her career as a student intern at TEP in 1994, Susan was hired as an Energy Management System Engineer in 1997 and advanced through several engineering roles.
She was promoted to Director of Design & Construction Services in 2011, and rose to Vice President of Energy Delivery in 2015. She was promoted to Senior Vice President and Chief Operating Officer in 2019 and began serving as president in 2020.
Susan has a bachelor’s degree in electrical engineering and a master’s of 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.
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 master’s in business administration from Fairleigh Dickinson University.
Erik Bakken – Vice President, Transmission & Distribution Planning and Environmental
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 his current position in 2018.
Dallas Dukes – Vice President, Energy 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 areas including new programs and services, customer 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 a master’s of business administration from Anderson University.
Cynthia Garcia – 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.
Mark Mansfield – Vice President, Energy Resources
Mark joined the company in 2008, most recently serving as Senior Director of Generation. 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 a master’s of business administration from the University of Utah.
Catherine E. Ries – Vice President, Customer and Human Resources
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 a master’s in business administration from Arizona State University.
Michael Sheehan – Vice President, Fuels, Resource Planning & Wholesale Marketing
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.
Jo Smith – Vice President, Public Policy
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.
Morgan Stoll – 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. PritzTreasurer
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.
Like UNS Energy, Fortis was established as the publicly traded corporate parent of a local utility – Newfoundland Power – that has provided electric service since the late 1800s. As the company has expanded through a series of acquisitions, it has retained its commitment to disciplined, patient growth through continued focus on operational excellence.
Today, Fortis is the largest investorowned gas and electric utility in Canada, providing gas and electric service to more than 3 million customers. Its regulated holdings include gas and electric utilities in five Canadian provinces, New York and two Caribbean countries.
ESG / Sustainability Performance
UNS Energy has worked with the Edison Electric Institute, the American Gas Association, investors and other member utilities to develop reporting metrics that allow investors to assess environmental, social, and governance (ESG) risks for each reporting utility. Customers, investors and other stakeholders can view information about our ESG and sustainability performance.