William Sheffield Appointed Chair of the IESO Board of Directors
June 8, 2023
The Board of Directors of the Independent Electricity System Operator (IESO) are pleased to announce that they have appointed William (Bill) Sheffield as the new Chair of the Board.
Mr. Sheffield has served in various capacities in Ontario’s electricity sector, most recently as Interim President and CEO of Hydro One. He has also been a member of the Board of Directors for Hydro One and OPG.
He began his career in the steel industry with Stelco Inc. and held senior roles in the forest products industry with Sappi Fine Papers and Abitibi-Consolidated Inc. Mr. Sheffield holds a Bachelor of Science (Chemistry) from Carleton University, an MBA from McMaster University and holds his Institute of Corporate Directors Designation (ICD.D).
“Bill’s deep experience in energy and corporate leadership comes to the IESO at a critical time as it works to support transformation throughout the sector,” said IESO President and CEO Lesley Gallinger. “I would also like to thank Patricia Koval for serving as the Acting Chair over the last few months.”