ENERGY STAR is a voluntary program established in 1992 under the Clean Air Act. The program is the international standard for energy efficient consumer products and structures.
The top 10 cities on the list are: Los Angeles; Washington DC; Atlanta; New York; San Francisco; Chicago; Dallas; Denver; Philadelphia; and Houston.
Hawaii currently has 73 ENERGY STAR certified buildings throughout the state. 66 on Oahu, three on Maui, three on Hawaii Island, and one on Kauai.
The EPA says that energy use in commercial buildings accounts for 17 percent of U.S. greenhouse gas emissions at a cost of more than $100 billion per year.
Energy Star certified office buildings cost $0.50 less per square foot to operate than average office buildings, and use nearly two times less energy per square foot than average office buildings.