[quote name='ketchenany' date='20 November 2010 - 05:26 PM' timestamp='1290291982' post='521836'
Doest it cost more to generate in the daytime than at night? Hell, I worked the night shift many, many, many years ago; we got paid more! I'm sure the guys working nights at Niagara/elsewhere are not paid by the KW/h or they would want the mid-peak or on-peak shift.
Supply and demand.
During the day Monday-Friday offices, businesses etc are eating up power and many of our empty houses are using some power as well. Then at 5pm, give or take an hour, we go home; turn on lights, start cooking meals, running dish washers, dryers, air conditioners, opening fridges (at least that's where I keep my beer) surfing OFC and the power demand spikes. I think most brown outs happen around this time in the summer for that reason.