IESO, Stakeholders Ponder Changes to Hourly DR
Hourly demand response (HDR) accounted for more than half the capacity procured in the 2025 auction. Virtual HDR refers to aggregated DR resources that are not metered by IESO. Physical HDR resources are single, large transmission-connected or embedded load facilities that are revenue metered by IESO. | IESO
Feb 2, 2026
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IESO is reconsidering how it deploys hourly demand response following complaints over partial activations and an increase in standby notices.
