Board of Supervisors in San Francisco approves Energy Audits

The Board of Supervisors in San Francisco passed an ordinance requiring commercial buildings over 10,000 square feet to conduct energy-efficiency audits every five years and to require owners of all other non-residential buildings to make public how much energy the buildings consume  each year. Building owners would have to benchmark the energy use of their buildings using a free online tool provided by the US EPA and file the results annually with the city. The city expects that the ordinance will result in existing buildings reducing their energy use by 50% within 20 years.