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No CA Rebate without Solar Panel Monitoring?

Homeowners using the Enphase Envoy to monitor their solar panel output can qualify for an upfront, lump-sum rebate through California’s Expected Performance-Based Buydown (EPBB).

What’s the EPBB Rebate?Envoy

The Expected Performance-Based Buydown (EPBB) is one of two incentive options offered by the California Solar Initiative (CSI).

The EPBB is an upfront rebate for small businesses and homeowners with systems 30kW or less (as opposed to systems greater than 30kW, which would qualify for 5 years of monthly payments through a Performance-Based Incentive).  If you qualify for the EPBB rebate, you’ll get the entire payment at the time of installation.

The EPBB rebate is determined mainly by the expected performance of a photovoltaic system, which is based on factors including CEC-AC rating, tilt, orientation, location, and shading.

csi_step_graphepbb

To qualify for the EPBB rebate, you need to get a monitoring system like the Enphase Envoy Communications Gateway to track the output of your solar panels.  With a reporting accuracy of ±5%, Enphase monitoring is sufficient for the EPBB rebate, whereas revenue-grade meters with ±2% would be required for PV systems of 30kW or greater under CSI’s Performance-Based incentive.

 

New-Enlighten-3.0-v2

Enphase monitoring systems include:

For more information about monitoring requirements, visit the CSI Website.

 

How does Enphase work?

The Enphase Envoy is designed for PV systems with Enphase Microinverters, which attach behind each solar panel, turning the DC electricity from each solar panel into usable AC electricity.

With each microinverter working independently, Enphase systems are optimized for locations prone to shading from nearby trees and make it easy to add solar panels to your system in the future.

Each mircoinverter is connected to the internet with it’s own IP address, so the web-based software Enlighten provides data about your system’s output – whether you’re at home on your PC or using your the Enlighten app your iPhone.   Each microinverter operating independently means you can see the output of individual panels in your array, making troubleshooting issues much easier than a string inverter would.

Enphase microinverter systems are recommended for small grid-tied systems, systems with multiple arrays, and systems with potential shading concerns.

Benefits of Enphase Systems:

  • Easy installation
  • Design flexibility & scalability
  • Maximum Power Point Tracking (MPPT)
  • Optimized for shading
  • Remote monitoring capability

 

Author: Tom Jackson

I believe in a future that’s powered by clean energy. "Idealist" should not be a dirty word.

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