After scrapping most Trudeau-era climate policies, Prime Minister Mark Carney wants to tighten rules over Canada’s industrial carbon markets, which observers say have failed to incentivize emission reductions.

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.

IESO's latest Reliability Outlook reduces its 2026 demand growth projection slightly, citing “international trade tensions.”

IESO released proposed market rule and manual revisions to require synchrophasor data from storage resources.

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.

Higher prices under Ontario’s renewed market are causing heartburn for mines and greenhouse growers, stakeholders told 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.

IESO is considering a broader range of long-duration energy storage technologies in its upcoming long lead-time procurement (but will not include hydroelectric redevelopments, officials told stakeholders.

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.