AT&T to Switch to 2.6M LEDs in Signage, Save Millions

LED lighting has made significant impacts for energy efficiency lately; in February, the city of Los Angeles switched out 140,000 streetlights with LEDs, and expects to save $48 million a year in electricity costs.

And late last month, Secretary of Energy Steven Chu unveiled $346 million in funding to help bring buildings up to new standards of energy efficiency in lighting.