Washington, D.C. topped the annual U.S. Environmental Protection Agency's (EPA) ranking of U.S. cities with the most Energy Star buildings.
The nation’s capitol was propelled to the top spot by its new benchmarking law requiring large private buildings to measure and publicly report their energy and water performance using the Energy Star Portfolio Manager online tool. D.C. is the first city in the U.S. to adopt this law.
With 480 Energy Star-certified buildings, the EPA estimates D.C.'s Energy Star buildings have saved $127.1 million, and enough electricity to power 73,500 homes. Los Angeles fell to second place with 475 certified buildings.
To earn the Energy Star certification, a commercial building must score 75 or higher on an energy efficiency scale out of 100 on the Energy Star online tool. A score of 50 is the average. Certification requires a professional engineer or registered architect to verify that the assessment is accurate.
Related Stories
| Jul 17, 2014
A high-rise with outdoor, vertical community space? It's possible! [slideshow]
Danish design firm C.F. Møller has developed a novel way to increase community space without compromising privacy or indoor space.
| Jul 16, 2014
Check out this tree-like skyscraper concept for vertical farming
Aprilli Design Studio has stepped forward with a new idea for a vertical farm, which is intended to resemble a giant tree. It uses lightweight decks as outdoor growing space, adding up to about 25 acres of space.
| Jul 15, 2014
A look into the history of modular construction
Modular construction is more than a century old, and throughout its lifespan, the methods have been readapted to meet specific needs of different eras.
| Jul 14, 2014
Meet the bamboo-tent hotel that can grow
Beijing-based design cooperative Penda designed a bamboo hotel that can easily expand vertically or horizontally.
| Jul 11, 2014
Are these LEGO-like blocks the future of construction?
Kite Bricks proposes a more efficient way of building with its newly developed Smart Bricks system.
| Jul 10, 2014
BioSkin 'vertical sprinkler' named top technical innovation in high-rise design
BioSkin, a system of water-filled ceramic pipes that cools the exterior surface of buildings and their surrounding micro-climates, has won the 2014 Tall Building Innovation Award from the Council on Tall Buildings and Urban Habitat.
| Jul 10, 2014
New tool aggregates LEED project info for over 150 countries
The U.S. Green Building Council announced the launch of an expanded online data visualization resource that will allow any user to access aggregated LEED green building project information in the more than 150 countries with LEED projects.
| Jul 2, 2014
Emerging trends in commercial flooring
Rectangular tiles, digital graphic applications, the resurgence of terrazzo, and product transparency headline today’s commercial flooring trends.
| Jun 30, 2014
4 design concepts that remake the urban farmer's market
The American Institute of Architects held a competition to solve the farmer's markets' biggest design dilemma: lightweight, bland canopies that although convenient, does not protect much from the elements.
| Jun 30, 2014
OMA's The Interlace honored as one of the world's most 'community-friendly' high-rises
The 1,040-unit apartment complex in Singapore has won the inaugural Urban Habitat award from the Council on Tall Buildings and Urban Habitat, which highlights projects that demonstrate a positive contribution to the surrounding environment.