Comment More feel good legislation. (Score 1) 473
Let's say you save 200w for 6 hours per day by using a more efficient lightbulb. That's 1.2 kw hr per day, or roughly 4mJ.
Given that a gallon of gas weighs about 3 kg and therefore has about 120mJ of heating value, this saves the equivalent of about 4 oz of gasoline per day assuming 50% efficiency. Is legislation for is really warranted?
If they would fix the awful public transit in the SF bay area, we'd be saving something significant instead. Or if we had diesel cars, or stopped drinking bottled tap water.