People across Canada flicked off their lights for Earth Hour, but in two of the country’s largest provinces, the results were dimmer than in the past two years.

Ontario saw a four per cent drop in electricity demand Saturday night during Earth Hour, or enough to power a city the size of Brampton, Ontario's electricity system operator said yesterday.

The 560-megawatt decline represented a four per cent decrease — less than the six per cent seen in 2009 and five per cent in 2008.

In British Columbia, BC Hydro said the province’s electricity load dropped by 1.04 per cent between 8:30 and 9:30 p.m. The drop in B.C. amounted to 64.6 megawatt hours of electricity.

That’s less than the 1.1 per cent reduction in 2009 and two per cent reduction in 2008 in British Columbia.

Terry Young, with the Independent Electricity System Operator in Ontario, said the numbers may seem like a drop in the bucket, but it’s further evidence that energy consumption in the province is generally on the decline.

“Earth Hour ... isn’t something that obviously we’re looking to see make a major impact in terms of electricity demand. What it is, is more of an awareness,” he said.

“People were turning off their lights and stopped using as much electricity, and we could notice that. Any time we can notice something like that on a provincial scale then it does have some sort of an impact.”

The weaker numbers more likely reflect the weather than a waning interest, Young said. The temperatures in Ontario were much cooler this year than during Earth Hour last year, so even though lights were shut off, heaters were running, he said.