31 July 2006Track Ontario's power consumptionTuesday’s forecast is calling for one of the hottest days of the summer , with a high of 35C. Ontario could also set a high for power usage. You can track Ontario’s power consumption on the Independent Electricity System Operator (IESO) web site.[ ](http://ottawastart.com/wp-content/uploads/2006/07/market-demand.gif)** Trivia: ** Ottawa’s hottest day on record was 37.8ºC, set on August 14, 1944.** More trivia: ** The record for the highest electricity demand in Ontario was set on July 13, 2005 .** Related: ** Ottawa Weather Guide