Regulatory, Compliance & Metering

Overview

Enphase Microinverters are CSA listed per the requirements of UL1741, and are therefore approved to operate in the United States and Canada. For more information about meeting regulatory and compliance requirements with Enphase products, please look at these resources or contact our technical support department.  

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Frequently Asked Questions

Are Enphase devices UL-approved?

Enphase Microinverters are CSA listed per the requirements of UL1741 and are therefore approved to operate in the United States and Canada.

When I use the CSI EPBB calculator and specify Enphase Microinverters, I get a warning/error message that says:
'This inverter requires the addition of a meter/display to qualify for the CSI program. The CSI program requires that all EPBB customers install a ±5% or better meter. Please refer to section 11 of the CSI Handbook or the California Energy Commission's List of Eligible System Performance Meters.'

Are Enphase systems eligible for rebates in the state of California?

Yes, Enphase is indeed qualified equipment for California’s CSI EPBB program. The confusion arises because Enphase has a separate meter display (i.e., not built into the inverter itself). Our meter display is the Envoy/EMU. The Enphase meter is a qualified 5% meter, as can be verified by looking at the CSI list of qualified meters. The CSI warning message is simply a reminder that if using Enphase, the Envoy must also be specified. We recommend that you download the Enphase CSI EPBB Letter and submit it along with your CSI paperwork to ensure there is no confusion.

What smart meters are compatible with the Enphase Microinverter System?

Enphase offers a Revenue Grade Meter as part of the Enphase Metering and Management Solution, best suited for residential installations.

For commercial installations, the meter that is known to be compatible is the Energy Tracking Web-Enabled Meter.

For installations in the State of Hawaii, what is Enphase's position regarding the term 'system' for purposes of the Renewable Energy Technologies Income Tax Credit, HRS § 235-12.5?

Enphase has no responsibility or authority to determine the number of “systems” for the purposes of rebate monies. An Enphase branch circuit can contain as few as one microinverter or as many as the maximum number of units per-branch circuit, as defined by that particular model’s specifications. The number of units installed on a single branch circuit, protected by a single overcurrent protection device, or constituting a system” under the terms of this tax-code document, is strictly a matter between the system-owner and the respective tax jurisdiction.

Is the Envoy data acceptable for SREC reporting?

The Enphase Envoy Communications Gateway is the networking hub connecting your microinverter production data to the Enlighten web site. The Envoy aggregates measurements from the microinverters however, this aggregate measurement does not qualify as revenue-grade metering for Utility and/or SREC (Solar Renewable Energy Certificates) purposes. If your regulatory jurisdiction requires revenue-grade accuracy, a separate, revenue-grade meter must be purchased. Enphase Energy offers a revenue-grade meter with our Enphase Metering and Management Solution. Enphase is not responsible for the management or monetization of SRECs.