Upgrading SolarEdge's Firmware to Meet California's Electric Rule 21 Requirements

To operate a SolarEdge systems in accordance with California's Rule 21 grid support requirements you will need to perform a manual Rule 21 upgrade.

To proceed, you will need a Rule 21 Upgrade Kit provided through an authorized SolarEdge distributor.

The kit contains:

  • California Electric Rule 21 Upgrade Instructions 
  • Labels 
  • Micro SD Memory Card 
  • Micro SD Memory Card Note 

Rule 21 Upgrades can be performed by following a few easy steps. We provide an application note and a video to assist with the process: 

Review the Instruction Manual

Watch the online Rule 21 Upgrade Tutorial

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