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Enphase IQ Series Microinverters and Rule 21

The Enphase IQ series microinverters are rated for Rule 21. However, you should check to make sure that the Enphase IQ Envoy you have has the most up to date software to ensure that the Rule 21 functionality is active. 

You will need to have the software version 4.10 or greater. If you have this, you are good to go. If not, please check the following Enphase link to find out the various ways you can update the Envoy to meet Rule 21 requirements.