IESO
Ontario’s Independent Electricity System Operator is a government organization with a mixture of commercial and public-policy goals, owned by the government of Ontario. It was created to prepare for deregulation of the province’s electrical system and is governed by a board whose directors are appointed by the provincial government.
Mayor Wendy Landry
IESO and the Ontario Energy Board have added three new members to their governing bodies — including two Indigenous women mayors.
© RTO Insider LLC
The Ontario government’s efforts to align IESO and the Ontario Energy Board to make the province an energy “superpower” was the dominant theme at the 2025 Ontario Energy Conference.
© RTO Insider
The Ontario Energy Board's new CEO insisted it will retain its independence in adjudications even as it embraces the province’s directive to consider economic development in its policymaking.
© RTO Insider LLC
IESO is adopting more “proactive” planning processes in response to a projected load increase of 75%.
© RTO Insider
The Ontario government’s ambitious energy plan could prove costly to ratepayers if load growth stalls or new nuclear plants produce cost overruns, said A.J. Goulding, president of London Economics International.
Oxford Properties
IESO’s plan to give its staff authority to set market parameters without approval by the Board of Directors has sparked a debate over the ISO’s governance and the role of stakeholders.
IESO
IESO system planners recommended the construction of a $1.5 billion HVDC line to meet Toronto’s growing energy needs, saying it would be more “future proof” than two cheaper options.
Corre Energy/Long Duration Energy Storage Council
IESO has increased the capacity target for its planned solicitation for long lead-time resources, even as it acknowledges questions about the need for the procurement.
GE Hitachi and Ontario Power Generation
Ontario environmental groups panned the Canadian government’s inclusion of small modular reactors among infrastructure projects selected to receive fast-track regulatory treatment, saying renewables would be a far cheaper way to expand generation capacity.
Ontario Energy Board Market Surveillance Panel State of the Market Report 2023
Ontario’s energy regulator is learning new ways to identify inefficiencies and malign behavior under IESO’s Market Renewal Program.
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