Heat dome graph 3

Heat dome graph 3

Source: BC Hydro – Balancing Authority Load Data (B.C.), Alberta Electric System Operator – Market and system reporting (Alberta)

Description: This line chart shows average daily electricity demand in Alberta and B.C. for the years 2015-2021 in June and July. Demand in the two provinces peaked in late June through early July. During the heat dome, electricity demand peaked at 5 p.m. on 28 June 2021 at 9 539 MW in B.C. While this was a record high for summer electricty demand it is far below the B.C. record of 11 541 set at 6 p.m. on 14 January 2020. In Alberta, demand peaked at 11 721 MW on 29 June 2021 at 2 p.m., which was the second-highest hourly electricity demand ever recorded in the province, with the highest occurring in February of 2021.

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