Changing to LED lighting would reduce this by almost 70% and reduce our dependency on coal and oil fired power stations.
Expedio Lighting Ltd manufactures, distributes, installs and provides a design service for LED light fixtures for illuminated signs. LED's consume far less energy than incandescent bulbs.
Individual LEDs are beginning to challenge compact florescent bulbs in lumens per watt. LEDs also last longer providing in excess of 50,000 hours before burning out which results in reducing maintenance costs. Additionally there is no messy mercury recycling problem as is the case with CFLs.