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.
Highview Power
IESO is seeking to reduce the risk of its procurement of long lead-time resources by reserving the right to reject proposals that are too expensive and cancel deals in the first few years.
IESO
IESO is asking generation owners what it will take to extend the lives of their units at the end of their current contracts as Ontario seeks ways to meet a projected 75% load increase by 2050.
IESO
IESO hopes to curtail 100 MW of commercial HVAC load next year under a new program targeted at resources available during system peaks, but not for the full six-month commitment of the capacity market.
IESO
Storage developers in Ontario are pushing back on IESO’s 100-MW/minute ramp limit for batteries, saying it will reduce their revenues.
IESO
IESO removed a credit rating requirement for prospective bidders to enroll in its Transmitter Selection Framework Registry, a prequalification mechanism for the competitive procurement that is expected to begin in 2026.
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.
© 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.
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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.
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