Following the terrorist attacks of 9/11, the U.S. initiated a program to expand and upgrade its border stations with Canada and Mexico. Federal agencies have aggressive clean energy and carbon reduction goals, and the federal government's General Services Administration (GSA) is responsible for many of the federal government's buildings, including energy procurement. While the U.S. operates 168 border stations, in GSA's New England Region, there are 47 land ports of entry (LPOEs), ranging in size from 2,000 to 100,000 square feet. With more sophisticated electronic equipment being deployed in these stations, the electricity requirements are increasing.