For the fourth year in a row, Los Angeles has been ranked the number one city with the most Energy Star certified buildings in the US. According to the list of 25 cities, Los Angeles boasts 659 certified buildings, putting it well ahead of Washington DC with 404 and Atlanta with 359. New York is placed sixth despite having added 50 certified buildings to its total in 2011. California has six cities on the 2011 list— more than any other state.
Launched in 1992 by the Environmental Protection Agency (EPA), Energy Star is a voluntary labeling program designed to identify and promote energy-efficient products. Energy Star for Buildings was introduced in 1999, and there are now almost 16,500 Energy Star certified buildings across the country.
Energy use in commercial buildings accounts for nearly 20% of US greenhouse gas emissions at a cost of more than $100 billion per year. Commercial buildings that earn EPA’s Energy Star must perform in the top 25% of similar buildings nationwide and must be independently verified by a licensed professional engineer or a registered architect. Energy Star certified buildings use an average of 35% less energy.
The top ten cities:
- Los Angeles
- Washington, DC
- San Francisco
- New York
- Dallas-Fort Worth
- Riverside, California.
Biggest winners (2011 versus 2010 ranking)...
- Phoenix (+4)
- Miami (+3)
- Atlanta (+3)
- Dallas-Fort Worth (+2)
- Boston (+2)
..and losers (2011 versus 2010 ranking)
- Detroit (-11)
- Portland, Oregon (-8)
- Sacremento (-4)
- San Francisco (-2)
$2.3 billion – the amount saved in utility bills by the 16,500 Energy Star certified buildings across America
California – the state with the most cities in the 2011 list (6)
1.5 million homes – the equivalent emissions from annual energy use prevented by Energy Star certified buildings
4 – cities new to 2011 rankings (Riverside, California; Tampa; Colarado Springs; Salt Lake City
130.8 million – square feet of floor space provided by Energy Star certified buildings in Los Angeles, the number one ranked city