San Francisco ranks as the fourth most energy efficient market in the nation primarily because of its energy and water utilities policies, community wide initiatives and building policies. This according to a report from the American Council for an Energy Efficient Economy, which gave San Francisco an energy efficiency score of 75.5 out of a possible 100 points.
- The city has building codes that are more stringent than statewide standards
- San Francisco has significantly reduced its greenhouse gas emissions since 1990
- The city gives organizations and individuals free trees as part of an ongoing plan