Ontario
Coverage of IESO, Ontario Energy Board and Ontario Ministry of Energy and Mines
Ontario Power Generation
Ontario approved a $26.8 billion CAD plan to overhaul four aging nuclear reactors that supply approximately 11% of the province’s electricity needs.
IESO
The reference scenario in IESO’s 2026 Annual Planning Outlook indicates net annual energy demand growth of 65% by 2050, from just over 150 TWh in recent years to 250 TWh.
Government of Ontario
IESO is considering ways to grow Ontario’s economy and secure its energy supply without relying on trade with its U.S. neighbors, just as President Donald Trump launched another salvo in his ongoing trade war on Canada.
Mayor Wendy Landry
IESO and the Ontario Energy Board have added three new members to their governing bodies — including two Indigenous women mayors.
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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.
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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.
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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.
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.
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