SunSpec Member News

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...

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IEEE 1547.1 – 2020 Is Officially Published

IEEE 1547.1 – 2020 Is Officially Published

Dear SunSpec Alliance Members and Friends, On May 21, 2020, the IEEE 1547.1-2020 standard was officially published, making smart inverters with standard communication interfaces the official U.S. national standard for Distributed Energy Resources (DER).  The...

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