A heat wave continues to hit eastern and southern Ontario this week. On July 1st the humidex hit over 47 in Ottawa. (The humidex is an index number that combines heat and humidity and is used by Canadian meteorologists to describe how hot the weather feels to the average person) Demand in Ontario is expected to peak at over 23,000 megawatts (MW) on July 5th. Although we have not seen demand this high over the last few years, peak demand was over 27,000 MW a decade ago.
For companies on Class A, be aware that there is a high likelihood that more than one of the five highest peaks occurring in early July. The first two months into the new peak ICI season have shown us that there is an additional 200-400 MW involved and that ICI curtailment is starting earlier in the day.
