San Francisco Fire Marshal updates battery storage regulations amid solar power growth

In a recent San Francisco government meeting, officials discussed critical updates regarding the installation of battery systems and solar panels in residential areas. The meeting highlighted the importance of safety standards and regulatory adjustments as the city prepares for an increase in renewable energy installations.

Fire Marshal Coughlin presented findings from Underwriters Laboratories (UL) testing, which indicated that certain battery systems could be installed closer together than previously mandated by code. The standard distance for installation has shifted from three feet to as little as six inches, depending on the manufacturer. This change is significant as it allows for more efficient use of space in a city where real estate is at a premium. However, the installation must still adhere to the manufacturer's guidelines, which may recommend greater distances.

Commissioner Feinstein raised concerns about the current number of battery systems installed in San Francisco, noting that the industry had been slow to adopt these technologies due to previous restrictions. As state policies evolve to encourage the sale of excess power back to the grid, the demand for battery systems is expected to rise. This shift is particularly relevant for residents who wish to store solar energy generated during the day for use at night, especially in areas of the city that experience frequent fog.

The permitting process for installing solar panels and battery systems was also clarified. Homeowners must obtain a building permit, which involves coordination between the building, electrical, and fire departments to ensure safety and compliance with regulations. This comprehensive approach aims to streamline the approval process while maintaining safety standards.

The discussions underscored the city's commitment to adapting its regulations to support the growing renewable energy sector while ensuring public safety. As the technology evolves, city officials expressed their dedication to keeping the permitting process aligned with industry advancements. The meeting concluded with a consensus on the importance of these updates in fostering a sustainable energy future for San Francisco.