Toronto Hydro-Electric System reports that the Toronto dropped 205 MW of electricity during Earth Hour. This is equivalent to removing about 92,000 homes off Toronto's electricity grid.
Toronto Hydro saw a drop of electricity consumption based on the electricity load recorded for the last three Saturdays this month. As homes and businesses shut off lights, computers, television sets and other non-essential appliances and equipment, the drop continued to decline over the hour.
Normal demand on Saturday evenings at 8 p.m. this month averages 3,035 MW. A megawatt is equal to one-million watts. During Earth Hour, the drop in electricity was about seven percent.
Toronto Hydro-Electric System owns and operates an electricity distribution system, which delivers electricity to about 719,000 customers located in the city of Toronto. It is the largest municipal electricity distribution company in Canada and distributes about 19 percent of the electricity consumed in the province of Ontario.