New Inverter Standards: Pursuant to California Public Utilities Commission (CPUC) Resolutions E-5000 (PDF) and E-5036 (PDF). PG&E will require interconnection applicants to use UL1741 SB Certified inverters and Common Smart Inverter Profile Conformance (CSIP) starting on August 29, 2023.
We strongly recommend that installers and contractors use equipment on the California Energy Commission (CEC) list of accepted equipment. Doing so can save you time during the engineering review process. Only CEC and PG&E approved equipment appears in the drop-down list on our online Interconnection Application. Unlisted equipment requires additional documentation (PDF).
Note: On December 15, 2022, the California Public Utilities Commission (CPUC) issued a decision to modify the state's solar program. The new Solar Billing Plan will be in effect and impact only new solar customers that submit an application after April 14th, 2023.
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