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News and Updates

2019 year in review

January 30, 2020

Ontario is in a stable electricity supply situation after years of investment in new generation, with enough existing and available resources to meet the province’s needs for the next decade. From fast facts on supply, demand and price, to operational highlights and energy-efficiency savings, learn more about how Ontario’s electricity system performed in 2019.

The IESO continually improves the availability and access to electricity system data on

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