San Francisco to become first city to require solar panels on new buildings

Beginning January 1, 2017, San Francisco will require rooftop solar systems on all new buildings under 10 stories – the first mandate of its kind in the United States.

The city's Board of Supervisors unanimously approved legislation Tuesday that will require all future commercial or residential buildings under 10 stories in height to install solar systems for heat, electricity, or a combination of the two. The California cities of Lancaster and Sebastopol, which have populations of about 160,000 and 7,600, respectively, have already enacted similar mandates, but San Francisco is the first city of considerable size to require solar roofs....
http://www.csmonitor.com/Environment/2016/0420/San-Francisco-to-become-first-city-to-require-solar-panels-on-new-buildings