An important consideration for any “green” building is its electric power supply. Commercial buildings currently consume more than one-third of the total electric energy produced in the United States. The U.S.
LEED v4, the latest version of the Leadership in Energy and Environmental Design (LEED) rating system, reflects an ultimate goal by the U.S. Green Building Council (USGBC): make a LEED-certified building forever green. A theme of “trust but verify” emerges as you look at the changes in LEED v4.