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Gianna Manes

Director and Former ENMAX President & CEO

Gianna Manes served as President & CEO of ENMAX from April 2012 to June 2020, and currently sits on the ENMAX Board of Directors. She is also a director of a publicly traded company, Keyera Corp., and a director of the Canadian Electricity Association. Gianna previously served as the Co-Chair of the Calgary United Way campaign and was a director of the Calgary United Way from 2015 to 2018. Gianna has 30 years of experience in the energy sector in Canada, the United States and Europe. Before joining ENMAX, she served as the Senior Vice President and Chief Customer Officer of Duke Energy from 2008 to 2012, a large North American power company based in Charlotte, North Carolina.

Gianna has been recognized for her leadership and accomplishments throughout her career: as Electricity Human Resources Canada's CEO of the Year in 2013, one of Alberta Venture's Top 50 Most Influential People in 2015, and twice-recognized as one of Canada's Most Powerful Women by the Women's Executive Network.


Customers are free to purchase natural gas services or electricity services from a retailer of their choice. For a list of retailers, visit ucahelps.alberta.ca or call 310-4822 (toll free in Alberta).

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