ENERGY STAR® compliance statement
As an ENERGY STAR partner, Apple has determined that standard configurations of this product meet the ENERGY STAR guidelines for energy efficiency. The ENERGY STAR program is a partnership with electronic equipment manufacturers to promote energy-efficient products. Reducing energy consumption of products saves money and helps conserve valuable resources.
Mac Pro is shipped with power management enabled with the computer set to sleep after 10 minutes of user inactivity. To wake your computer, click the mouse or press any key on the keyboard. To change this setting, click the System Preferences icon 
in the Dock, then click Energy Saver.
Mac Pro meets the ENERGY STAR guidelines for energy efficiency. For more information about ENERGY STAR, go to Energy Star.