Ontario Power Market
Demand Outlook 2007 - 2015

Ontario is becoming a summer peaking region. Since the late 1990s there has been a significant increase in cooling load as air conditioning has become common in Ontario. Growth in energy demand has not been consistent across all seasons. Winter energy demand has averaged annual growth of 0.7% while summer energy demand has averaged growth of 1.3% per annum.

Historical Electricity Demand Records
26,160 MW     July 13, 2005
26,157 MW     June 27, 2005
25,861 MW     June 25, 2005

Projected Electricity Demand - Summer 2015
Normal Weather Peak      26,900 MW
Extreme Weather Peak     30,000 MW

Ontario Hourly Peak Demand Actuals and Forecast
Ontario Hourly Peak Demand Actuals and Forecast
Source: 10 Year Outlook from 2005, IESO