The San Francisco Board of Supervisors this week unanimously passed legislation to require all new commercial or residential buildings with 10 or fewer stories to have solar panels.
The Better Roofs ordinance was penned by Supervisor Scott Wiener, who said the measure was needed to fight climate change and reduce reliance on fossil fuels.
Creative Commons Lic. Photovoltaic (foreground) and Solar water heating (rear) panels located on rooftops in Berkeley, Calif. The low tilt of the photovoltaic panels is optimized for summer; the high tilt of the water heating panels is optimized for winter.
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Source: COMPUTER WORLD