During, AT&T launched a comprehensive online energy management training program for AT&T corporate real estate managers, and as a result implemented 4,200 energy efficiency projects. These efforts yielded $44 million in annualized energy savings. 
AT&T is using an Energy Scorecard to grade its own efficiency at each of its top 500 energy-consuming facilities.
AT&T cited several examples of energy efficiency projects in 2010:
- Replaced tower light controllers and incandescent bulbs with LEDs at over 1,100 cell sites.
- As part of ongoing network upgrades, removed switches at 11 central office sites in 2010, thus cutting power consumption across the network by more than 300,000 kilowatt hours.
- Deployed desktop power management software on 169,000 computers generating a total estimated annualized savings of $614,000.
In 2008, AT&T established an energy intensity metric based on kWh per terabyte of data carried on their network and set a goal for 2009 to reduce that intensity by 15 percent. In 2009, AT&T achieved a 23.8 percent decrease in energy intensity using 498 kWh per terabyte of data carried on their network. For 2010, AT&T set a goal to further reduce energy intensity by an additional 15 percent as compared with 2009's KWh per terabyte of data figure.http://www.att.com
