Calif. legislator proposes statewide solar mandate for new buildings

A California state senator has introduced a bill that would require the installation of solar power on new commercial and residential buildings statewide.

If the proposal were to become law, it would be the first such requirement in U.S. history, according to a press release by Scott Wiener, the legislator behind the bill. The statewide mandate would be similar to a city law that Wiener wrote and helped pass in 2016 as a member of the San Francisco Board of Supervisors.

The board approved the city ordinance last year that required new small and midsized buildings in San Francisco to include solar. Some other California cities have enacted similar solar mandates.

According to current California state law, all new residential and commercial buildings up to 10 stories tall must have 15% of their roof area solar ready—defined as unshaded and free of obtrusions. The proposed new legislation would require that solar be installed on the 15% of solar-ready roof area. The solar mandate could be fulfilled by either photovoltaic or solar water systems.

New York City has two very large buildings dedicated to answering the 911 calls of its five boroughs. With more than 11 million emergency calls annually, it makes perfect sense. The second of these buildings, the Public Safety Answering Center II (PSAC II) is located on a nine-acre parcel of land in the Bronx. It’s an imposing 450,000 square-foot structure—a 240-foot-wide by 240-foot-tall cube. The gleaming aluminum cube risesthe equivalent of 24 stories from behind a grassy berm, projecting the unlikely impression that it might actually be floating. Like most visually striking structures, the building has drawn as much scorn as it has admiration.