Charles Ruigrok joined the ENMAX Board in 2010 and is the Chair of the Board, having previously served as Chair of ENMAX’s Audit Committee and as Board Chair of Versant Power, ENMAX's Maine-based transmission and distribution business. Mr. Ruigrok also served as ENMAX's President & CEO, on an interim basis​, between 2011-2012 and 2021-2022.

With over 40 years of business and executive experience in the energy industry, Charles brings an extensive understanding of ENMAX and its operations to the Board. Charles previously held the position of CEO of Syncrude Canada Ltd., and spent 26 years at Imperial Oil, where he held various senior executive positions including Vice President of Oil Sands Development and Research.

Charles is a past director of Syncrude Canada Ltd., Rainbow Pipeline Company, Progas Limited, the Alberta Chamber of Resources, Petroleum Technology Alliance Canada and Soane Energy LLC. He also served as a member of the Board of Governors of the Canadian Association of Petroleum Producers.