A bright idea: LED light bulbs yield big savings in energy | McClatchy

A bright idea: LED light bulbs yield big savings in energy | McClatchy: "Lighting consumes 22 percent of electricity in the United States. The DOE predicts that solid-state lighting — which uses semiconducting materials to convert electricity into light, and includes LEDs — has the potential to reduce energy use for lighting by one-third by 2030. That's the equivalent of saving the output of 40 large (1,000-megawatt) power plants, the greenhouse gas emissions of 47 million cars and $30 billion."