It is no surprise that an eclectic and progressive city like San Francisco would be home to the smartest green building in the world. The newly constructed San Francisco Public Utility Commission (SFPUC), which provides retail drinking water, wastewater and green hydroelectric and solar power services to Bay Area municipalities, has raised the bar quite high for energy efficiency and sustainability. The building, which is the third largest municipal utility in California, uses 55 percent less energy and consumes 32 percent less electrical demand than the ASHRAE baseline standard.

http://www.greenbiz.com/blog/2012/05/10/is-this-worlds-smartest-greenest-building