Mark Poweska

President, CEO & Board Member at ENMAX

Mark joined ENMAX in September 2022 as President and CEO. 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. He serves on the Board of the Western Energy Institute, the Organizing Committee for the 2025 Invictus Games and participates on the CD Howe Energy Policy Council. He was previously Chair of the Board of Directors of the Ontario Energy Association and a Board Advisor to Yukon Energy.


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  • President, CEO & Board Member

    Current role

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