#GREENFAIL: Report: DC’s green-approved buildings using more energy. “The results are measured in EUI’s, a unit that relates a building’s energy consumption to its size; the higher the number, the more energy is expended by a smaller building. Take the Green Building Council’s Washington headquarters. Replete with the group’s top green-energy accolade, the platinum LEED certification, the USGBC’s main base comes in at 236 EUI. The average EUI for uncertified buildings in the capital? Just 199.”