Greg Retzer


Greg oversees ENMAX Energy and is accountable for ENMAX's competitive energy businesses including electricity generation, retail and customer operations, wholesale commodity trading and commercial programs.

With nearly 30 years of industry experience, Greg’s technical background and business acumen bring strong operational performance and safety leadership to the team. He has worked in various senior roles in business operations and development, including positions with the Alberta Electric System Operator (AESO) and Stantec, and has led teams and projects across the U.S. and Canada in the electricity, telecom, engineering and data management industries.

Prior to his role with ENMAX Energy, Greg held the position of Vice President, Field Services with ENMAX Power, leading his team to achieve operational improvements and safety culture advancements.

Greg holds a Bachelor of Science in Geography from the University of Calgary and an MBA from Georgia State University.


Previous companies

Apex CoVantage logo
AESO logo
Stantec logo


  • EVP, ENMAX Energy

    Current role

  • SVP, ENMAX Energy

View in org chart