San Francisco to require rooftop solar on all new buildings

Published by

PV Magazine

The new legislation requires solar PV systems, solar water heating systems or a combination of the two. San Francisco has set a goal to use 100% renewable energy by 2025 in addition to other ambitious environmental targets.

New commercial and residential buildings of up to 10 stories in San Francisco will have to install rooftop solar systems. Powertree Services/California Energy Commissi
New commercial and residential buildings of up to 10 stories in San Francisco will have to install rooftop solar systems.
Powertree Services/California Energy Commissi

San Francisco on Tuesday became California’s first major city to mandate solar installations on new buildings.

The move, which goes into effect in January, follows similar mandates passed by smaller municipalities Lancaster and Sebastopol in 2013, according to the San Francisco Examiner.

New commercial and residential buildings of up to 10 stories in height will have to install rooftop solar systems for heat or electricity under legislation that was unanimously approved by the city’s Board of Supervisors.

“In an era when we are reminded daily of our rapidly changing climate, it is so important that we continue our strong push to alternative, non-fossil fuel energies,” said Supervisor Scott Wiener, who introduced the legislation.

San Francisco has set a goal to use 100% renewable energy by 2025 in addition to other ambitious environmental targets.

The San Francisco Examiner quoted Barry Hooper, the Department of Environment Green Building Coordinator, who said last week that 100% renewable energy depended “on both development of renewable energy resources and continued improvement in energy efficiency.” He added that the ordinance represented another “straightforward and pragmatic step” toward that goal.

The legislation requires solar PV systems, solar water heating systems or a combination of the two.

California state law already requires most new buildings to have 15% of the rooftop “solar ready” in order to facilitate the installation of PV systems, the newspaper said.

The legislation adds to San Francisco’s environmental efforts, which also includes a new renewable energy program, known as CleanPowerSF, set to launch later this year.

Source: PV Magazine. Reproduced with permission.

Share
Published by

Recent Posts

Twiggy Forrest’s Squadron abandons plan for troubled New England wind farm

Days after lodging new plans for a more than 500 MW wind farm, Squadron dumps…

17 July 2026

Energy Insiders Podcast: Is Australia on target for a “step change” in energy?

AEMO’S head of systems Nicola Falcon on the 2026 ISP and the importance of grid…

17 July 2026

Australia’s solar PV recycling plans on hold after flagship pilot project suspended

Flagship pilot program to set up 100 sites around the country to collect used solar…

17 July 2026

Australia is running a data deficit – on EVs and the energy shift – and everyone pays the price

Australia has been accumulating a data deficit, cutting the science and statistics infrastructure that underpins…

17 July 2026

The great gas disconnect: Why Australia needs a managed exit strategy for stranded gas network

The burden of a dying gas industry must be shared proportionately between network investors, governments,…

16 July 2026

“We request Manchurian Pear trees:” NSW battery project approved after unusual request

A newly approved big battery project faced just one, detailed objection, and it was able…

16 July 2026