"San Francisco today became the first major city in the country to approve legislation requiring solar panels on new buildings.
The Board of Supervisors voted unanimously to approve legislation by Supervisor Scott Wiener requiring solar panels on all new residential and commercial buildings up to 10 stories tall.
State law already requires that 15 percent of the roof area on new small and mid-sized buildings be "solar ready," meaning free of shade and obstructions that could interfere with the installation of solar panels. "
The Bay City News Service had the story April 19, 2016.
Source: Bay City News Service, 04/21/2016