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.
IESO
Ontario approved IESO’s proposed $1.5 billion HVDC line under Lake Ontario, which planners say is needed to meet a potential doubling of Toronto’s electricity demand by 2050.
Hydro One
IESO's latest Reliability Outlook reduces its 2026 demand growth projection slightly, citing “international trade tensions.”
IESO
IESO released proposed market rule and manual revisions to require synchrophasor data from storage resources.
New York Governor's Office
NYPA and OPG will share information, resources and institutional knowledge to support the economic, technology and workforce initiatives needed for advanced nuclear development on both sides of the border.
Highview Power
Responding to opposition from suppliers, IESO said it will not include a termination option in its procurement for long lead-time resources.
Power Advisory
IESO says record-high clearing prices in its capacity auction will have little impact on ratepayers because the ISO's medium- and long-term procurements play a larger role in the region’s resource adequacy.
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.
© RTO Insider LLC
The longstanding links between U.S. and Canadian electricity grid operators won’t be easily fractured by the tariff-driven political rift between D.C., and Ottawa, industry participants on both sides of the border say.
IESO
Higher prices under Ontario’s renewed market are causing heartburn for mines and greenhouse growers, stakeholders told IESO.
IESO
IESO proposed rule changes to eliminate unwarranted make-whole payments to operating reserve providers under Ontario’s nearly eight-month-old Market Renewal Program.
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