BC Hydro has provided us with some numbers about power consumption on the islands on "Earth Hour Day" March 29, and they tell an interesting story.Hydro spokesperson Bob Gammer said analysts compared power consumption in Queen Charlotte, Skidegate and Tlell on Saturday, March 29 to power consumption in the same three communities on Saturday, March 15.Saturday, March 29 was billed as "Earth Hour Day" around the world and many people turned off their lights for one hour starting at 8 pm to make a statement about saving energy and climate change.Here on the islands, Mr. Gammer said, power consumption dropped somewhat the afternoon of March 29, compared to two weeks earlier, but then went up starting at 8 pm.Although power consumption went up rather than down during "Earth Hour", overall on March 29 the three Graham Island communities used about 1,250 kilowatt hours less throughout the day compared to March 15, Mr. Gammer said.To put the savings in context, 1,250 kilowatt hours is about the same amount of energy that an average house on the islands would use in six weeks, he said.Analysts chose March 15 for comparison because it was a similar day on the islands in terms of weather to Earth Hour Day, Mr. Gammer said. Some communities were without power for part of the day on Saturday, March 22 due to an enormous wind storm.Across northern BC generally, Hydro did not see much of a drop in power consumption on Earth Hour Day. Mr. Gammer said that is probably because the weather was pretty cold that day, so any power savings people made by turning off their lights were outweighed by their heating systems working harder.