Four SunSpec Specifications Now in Countdown to APPROVAL

We’re excited to announce that four SunSpec specifications have entered the final countdown of moving from TEST to APPROVED status. During this 45-day window for technical comments and IPR Review, which will begin on March 11, 2021 and conclude on April 20,...

California Rule 21 Phase 2 Goes Into Effect This Month

Attestation requirements kick in and new CEC equipment list is published. Dear SunSpec Alliance Members and Friends, On June 22, 2020, California Rule 21 Phase 2 (and part of Phase 3) communication requirements go into effect. After that time, any solar inverter or...
CA Rule 21 Deadline Extended to June 22, 2020

CA Rule 21 Deadline Extended to June 22, 2020

CPUC Decision to Extend CA RULE 21 Deadline Cites COVID-19 On March 20, 2020 the California Public Utilities Commission issued an extension of the CA Rule 21 compliance deadline, pushing the date to June 22, 2020. This includes the Smart Inverter Phase 2...

Bulletin: CA Rule 21 DRAFT Resolution E-5000

  DRAFT Resolution E-5000 clarifies smart inverter communications requirements in response to the petition of the California Solar & Storage Association for modification of Resolutions E-4832 and E-4898 June 6, 2019 Today the California Public Utilities...