

This determination, if correctly interpreted, could impact all solar PV installations, not just solar and storage projects. In that letter, Fogt states that all work performed by a contractor holding a C-10 license, regardless of the other licenses the contractor might also hold, must be done by Certified Electricians per state law. The July 28 decision was based on a letter from the CSLB head registrar David Fogt to the UC Berkeley Labor Center on April 21, 2021.

It applies to all energy storage systems, whether paired with solar PV or not.Ĭontractors holding a C-46 license may continue to install solar PV systems that are not paired with energy storage, but there’s an important wrinkle.


This decision goes into effect regardless of system size, customer type or technology. Only an act of the state legislature can modify those two licenses. Failing to do so will risk having your license revoked.Ĭontractors who hold a General A and/or General B license may continue to install solar and storage systems so long as the work falls within the legal classifications of those two licenses. The majority are being installed by contractors who hold a C-46, with and without other licenses.Īny contractor who holds a C-10 license must adhere to strict workforce hiring requirements: California rules require C-10 contractors to hire only Certified Electricians and registered electrical trainees on a one-to-one basis to perform all of their installation work. Only 22% of the solar and storage installations in the past five years were done by contractors holding only a C-10 license. In 90 days, the C-46 license holder will no longer be allowed to install a solar and energy storage system in the state of California. Unlike previous votes, this decision bypasses regulatory review and therefore goes into effect after 90 days. The CSLB ruled that the C-10 license is the only specialty license eligible to install solar and energy storage systems. This vote comes despite the board’s 40-year history of extensive testing as well as providing written permission for C-46 solar specialty contractors to install solar and energy storage systems and in the absence of identified incidents involving contractor error. The Contractor State Licensing Board (CSLB) voted 11-3 on July 28 to restrict and impede the lawful trade of 80% of California’s licensed solar contractors to continue installing solar and energy storage systems.
