Ontario Electricity Demand
Thursday, September 2
On March 27 at 8:30 p.m., many Ontarians will show their support for Earth Hour by turning off the lights and other appliances, showing just how much of a difference a few small actions can make.
During Earth Hour, this graph will compare the actual electricity demand in the province against the demand on a typical Saturday with similar weather conditions in order to determine the megawatts (MW) saved.

News
March 27, 2010
The IESO reported that compared to a typical Saturday in late March, demand for electricity in Ontario fell by approximately four per cent or 560 megawatts (MW) as a result of Earth Hour
More
Installed Capacity By Fuel Type
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|
11,426 MW | 32% |
|
7,914 MW | 22% | |
|
6,434 MW | 18% | |
|
8,552 MW | 24% | |
|
1,084 MW | 3% | |
|
75 MW | 0.2% |




Nuclear