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Mark Poweska
​​​​​​​​​​​​​​​​​​​​​​​​ President and Chief Executive Officer​

Mark Poweska joined ENMAX in September 2022 as President and CEO and serves as Board Chair of Versant Power, ENMAX’s Maine-based regulated transmission and distribution business. He previously served as President and CEO at Hydro One, where he led the launch of their strategy with a focus on safety, efficiency, customer service and community partnership.

Before joining Hydro One in 2019, Mark was the Executive Vice President, Operations at BC Hydro. He oversaw all aspects of operations in the organization’s electric system, serving approximately four million residential, commercial and industrial customers. During his tenure, Mark successfully led the merger of the former transmission and distribution organization with the generation organization to form one operations group with revenues of approximately $5 billion. Mark joined BC Hydro in 1993 and worked in several parts of the organization, including engineering, construction and procurement.​

Mark graduated from the University of Saskatchewan with a degree in mechanical engineering and is a Professional Engineer. He currently serves on the Board of Directors for the 2025 Invictus Games and participates on the CD Howe Energy Policy Council. He previously served on the Board of the Western Energy Institute, as Chair of the Board of Directors of the Ontario Energy Association, and was a Board Advisor to Yukon Energy.


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