Business Green: Tech capital becomes first large US city to require solar installations on new commercial and residential rooftops
San Francisco has this week passed landmark legislation requiring all new buildings under 10 storeys in height to be fitted with rooftop solar panels.
The city's San Francisco Board of Supervisors unanimously passed the new rule on Tuesday, making the metropolis the largest in the US to mandate solar installations on new properties.
Smaller Californian cities such as Lancaster...