To reduce energy consumption, many governments around the world have considered legislation to phase out incandescent light bulbs. The goal is to move toward compact fluorescent bulbs and other more...

To reduce energy consumption, many governments around the world have considered legislation to phase out incandescent light bulbs. The goal is to move toward compact fluorescent bulbs and other more efficient sources of lighting. Can this really make much difference? The California Energy Commission reported the following summary of household electricity use. Based on this chart, can more efficient lighting have much impact on household energy use?