AT&T is installing NightWatchman PC power management software from 1E on 310,000 desktop computers across its domestic operations to help improve energy efficiency.
AT&T said that powering down its corporate PCs during non-work hours would save more than 135 million kilowatt hours of electricity a year and eliminate 123,941 tons of carbon dioxide emissions — equivalent to the electricity required to power 14,892 homes.
http://www.att.com/csr
