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April 21, 2025

IESO

© RTO Insider LLC 
Ontario Premier Ford Slaps 25% Tariffs on Power Exports to US
Ontario Premier Doug Ford followed through on a threat to implement a 25% tariff on electricity exports to the US, a response to President Trump's own 10% tariff that went into effect last week.
© RTO Insider LLC
Overheard at CERAWeek 2024
CERAWeek 2024 by S&P Global was supposed to explore “strategies for a multidimensional, multispeed and multifuel energy transition.” Instead, the buzz was all about data centers and artificial intelligence.
Experts: New Ontario Capacity Market Can Learn from US
Ontario’s nascent capacity market could take advantage of lessons from the U.S., experts said during APPrO's annual conference.
MISO Records Mild Winter
The tamest winter in recent memory brought no emergencies for MISO, though the RTO’s South region was the subject of three weather-related alerts.
NYISO Stakeholders OK Moving IESO Proxy Bus
NYISO is moving the proxy bus for pricing transactions with Ontario’s IESO to reflect power-flow changes from the implementation of phase-angle regulators.
NPCC Workshop Examines DER Reliability Issues
NPCC's Regional Standards Committee held a forum on reliability issues related to DERs, featuring presentations by Hydro-Quebec, Duke and IESO.
ERO Budget Nears OK Despite Canada’s Concerns
NERC’s 13.3% spending increase to develop its cybersecurity capability is facing some pushback from multiple Canadian utilities.
Overheard at 2019 IESO Electricity Summit
Facing the same challenges as its U.S. counterparts, Ontario’s IESO is reshaping its markets to handle an influx of renewable and distributed resources.

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