Quick Question

So the Earth Hour supporters are trumpeting their success at lowering energy use by about 5% in Ontario (more in Toronto the Green). I wonder if the Earth Hour folks bothered to look at energy use between 9pm and 10pm. Did we see a spike as people came home, turned on their lights, televisions, checked their e-mail etc? In other words, did earth hour reduce energy use or just transfer it to the subsequent hours?

Side Note: Reducing energy use is great. It is particularly great if the energy you use actually contributes to global warming. Many jurisdictions in Canada get their juice from low carbon and no carbon options like nuclear, hydro and wind.