Executive Leadership Team

Bob Kahn joined Austin Energy as General Manager in July 2023. He is responsible for Austin Energy’s day-to-day operations and strategic direction, including the customer experience, grid resilience, environmental leadership, financial health, the employee experience and health and safety.

With his extensive experience and proven track record in the Texas electric utility industry, Kahn brings a wealth of knowledge and strategic vision to this role. Kahn came to Austin Energy from the Texas Municipal Power Agency, where he served as General Manager for more than a decade. Previously, he was the President and Chief Executive Officer at the Electric Reliability Council of Texas (ERCOT) from 2007-2009. Before that role, Kahn served as Deputy General Manager, General Counsel and Vice President for Legal Services at Austin Energy.

Kahn holds a Bachelor of Arts degree from Ohio University and a Juris Doctor degree from the University of Dayton School of Law.

Tammy Cooper joined Austin Energy in June 2020 and serves as Deputy General Manager of Regulatory, Communications, Compliance and Legal Services. In this role, she oversees Regulatory Affairs, Corporate Communications, Corporate Compliance Programs, Legal Services, and Environmental, Health & Safety.

Cooper has extensive experience in the electric industry, most recently serving as General Counsel and Corporate Secretary at Texas Reliability Entity (Texas RE) where she led the Legal, Communications, and Training departments. She also worked in private law practice representing clients in state and federal electric regulatory proceedings and advising clients on a broad range of energy-related issues. She began her legal career at the Public Utility Commission of Texas, where she held several positions, including the Director of Commission Advising.

Cooper holds both a Bachelor of Science in radio-television-film and a law degree from the University of Texas at Austin.

Lisa Martin is Deputy General Manager & Chief Operating Officer, overseeing Power Production, Electric System Field Operations, Electric System Engineering & Technical Services, and Energy Market Operations and Resource Planning. Martin has previously served as Vice President of Electric System Engineering & Technical Services.

Martin joined Austin Energy in 2010 and has served in several engineering and compliance positions related to grid operations, transmission and distribution, generation, cybersecurity, battery storage, distributed energy resources, and technology strategy.

Prior to joining Austin Energy, Martin worked in power and gas origination and energy markets for Southern California Edison. She also worked for Shell Exploration & Production Company, UPS, and the American Transmission Company.

Martin holds a Bachelor of Science degree in Electrical Engineering and a Master of Business Administration in Operations Management. She is a licensed professional engineer and attended the University of Idaho Energy Executive Course.

Stuart Reilly is the Deputy General Manager of Business Services. In this position, Reilly serves as Chief Risk Officer and Chief Administrative Officer in addition to overseeing the utility’s business functions, including Finance, Technology and Data, Employee Development and Corporate Support Services.

Reilly has previously served as Deputy General Manager and Chief Operating Officer as well as Interim General Manager of Austin Energy. Reilly joined Austin Energy as Chief of Staff in January 2019. Prior to that, he worked as an Assistant City Attorney for the City of Austin, specializing in in utility regulations, operations, transactions, customer programs, and renewable energy.

Stuart Reilly holds a Bachelor of Arts in Government from the University of Texas at Austin and a Juris Doctor degree from George Washington University Law School.

Rusty Maenius oversees the four finance functions of the utility — Financial Planning & Budget, Corporate Accounting, Financial Risk Management and Rates & Financial Support Regulated Operations.

Maenius joined Austin Energy in 2000, serving in several analytical and managerial positions in the Finance business unit, including Chief Financial & Risk Officer. He also did a stint as Interim Deputy General Manager. Since 2011, Maenius has been responsible for establishing retail and transmission rates, financial and load forecasting, and financial modeling. Prior to joining Austin Energy, Maenius was with Pedernales Electric Corporative in Johnson City, the largest electric cooperative in the United States. Before his career in public power, he worked in the banking industry.

Maenius earned his Bachelor of Science degree in Agricultural Economics from Texas Tech University.  

As Vice President, Michael Enger is responsible for Austin Energy’s physical and financial power portfolio in the ERCOT wholesale electric market, including the Real Time, Day Ahead and Forward market desks. He oversees the origination of the utility’s renewable power purchase agreements and manages the Qualified Scheduling Entity (QSE) operations for Austin Energy’s owned and contracted resources. Enger is also responsible for resource planning at Austin Energy, which includes achieving the climate protection and affordability goals established by the Austin City Council and Austin Energy.

Enger brings a wealth of energy market knowledge to his role. He has more than 20 years of service with Austin Energy, most recently as Director of Energy & Market Operations. He has served as Manager of Market Operations and Risk Management and Interim Manager of Energy Market Analysis, in addition to roles as an energy planner, scheduler and marketer.

Enger has a Bachelor of Science degree in Economics from Texas A&M University.

Greg Flay oversees the Information Technology, Strategic Planning & Technology, Enterprise Information Security (Cybersecurity), and Data Analytics & Business Intelligence organizations. Flay joined Austin Energy in October 2016 as Chief Technology Officer.

In his role as Chief Technology Officer, Flay oversaw corporate strategic planning, technology roadmap management, enterprise architecture, technology selection and research and development functions — including oversight of Austin Energy’s relationship with the Electric Power Research Institute. His focus is on transparency, operations, and the speed and strategic alignment of technology acquisition.

Flay has more than 20 years of leadership and management experience in the power industry and related fields. His diverse leadership roles include information technology; mergers and acquisitions; business operations; business analysis; strategy; technology process controls; program and project management; technology portfolio management; and enterprise architecture. Flay has vast experience in the wholesale power generation and competitive retail segments of the power industry. He also has experience in residential solar and home services markets, including smart home, HVAC, and electrical and plumbing services.

Flay holds Bachelor of Arts and Master of Science degrees in geography from Penn State University as well as a Ph.D. in geography from the University of Minnesota with a focus on spatial analytics.

As Interim Vice President of Power Production, Kathleen Garrett is responsible for Austin Energy’s nuclear, coal and natural gas power generation as well as On-Site Energy Resources. She has more than 30 years’ experience working in the electric utility industry in power generation, water resource planning, and environmental health and safety.

Garrett joined Austin Energy in 2008 and has served in various leadership roles throughout the utility. Most recently, she worked as the Director of Environmental Health & Safety Services. She has also served as Interim Director of Energy Operations, Interim Director of Energy Efficiency, and Interim Director of Corporate Compliance.

Garrett holds a Bachelor of Science degree in Environmental Science from the University of Maine and a Global Leadership Executive Master of Business Administration from the University of Texas, Dallas.

Richard Génecé joined Austin Energy in August 2021. He guides programs that interact directly with Austin Energy customers, including Green Building, Electric Vehicles and Emerging Technologies, Energy Efficiency Services, Commercial and Key Accounts, and Customer Renewable Solutions.

Génecé's career spans more than 20 years in the utility industry, in both the public and private sectors. Prior to joining Austin Energy, he held executive positions at some of the largest public utilities in the country. He was Vice President of Energy Efficiency at Bonneville Power Administration in Portland, Oregon and provided oversight for stakeholder engagement and the development of community programs. Génecé also worked at Southern California Edison (SCE), a utility that provides service to more than 13 million customers. Génecé's private sector experience includes his role as Senior Vice President of West Operations for CLEAResult, with leadership responsibilities across the U.S. and Canada, in program sectors including residential, commercial, agricultural, industrial, low-income, and federal/government accounts.

Génecé earned his bachelor’s degree in Information & Decision Sciences at Carnegie Mellon University and an MBA at Indiana University. He served as a board member to the Consortium for Energy Efficiency and has earned Six Sigma Quality Process Improvement Certification (Green Belt).

Monica Joyner leads a division encompassing Revenue Measurement, Billing Services, Payment Services, and Quality Management and Training. Her oversight includes meter reading, maintenance, current diversion, collections, payment processing, branch services, quality, training, and bill production and support.

Joyner has 30 years of experience in customer account management, including 20 years of senior leadership. While at Austin Energy, she has served as Director of Customer Account Management, responsible for system integrations, process and compliance, staff development and curriculum design. Prior to that she managed Customer Solutions Management, overseeing customer escalation resolution and administrative hearings for COA Utilities.

Joyner joined Austin Energy in 2014. She is a graduate of the University of Idaho where she also attended the Utility Executive Course in 2018. She is fluent in five languages and holds a Six Sigma Black Belt certification from DePaul University.