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Carbon intensity (gCO₂eq/kWh)

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Canada

Ontario

New feature: 5-minute resolution

Currently experimental. Available at no additional cost while we gather feedback and refine the functionality.

Capacity Margin

Sep 29, 2025, 5:00 – 8:00 PM EDT

Forecasted capacity excess is less than 1000MW. The IESO may take actions to prevent capacity shortfall.
Grid alerts are free while in the experimental phase