Originally Posted by gbaglo
What the law-makers missed is that in the winter, nights are longer and days are colder. Incandescent bulbs emit heat just when it is needed.
I think there is validity in that correlation. On the other hand I wouldn't be surprised if most of the North American population uses most of its artificial lighting in non-heating conditions. There are a lot of lights on during the work day year round, there are a lot of lights used in places where heating is almost never used, and lots of lights are used in homes after sunset in the summer (especially by people not as far north as I am).
That's also a B.C.-centric approach, since electrical power is typically used there for both heat and light. For most Albertans, in contrast, the heat from a bulb comes inefficiently from a coal-fired power plant, while the heat from a furnace comes efficiently from a gas-fired appliance in the basement... big difference. I agree with the logic of discouraging incandescent lights.