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Enphase Envoy Energy Management Unit (EMU)

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Each Enphase Envoy is compatible with up to 255 micro-inverters
Sale Price $325.00 (USD)

Detailed Description:

The Enphase Micro-inverter continuously monitors itself and the performance of each PV module. This data is communicated over the existing power line to the Enphase Energy Management Unit. The Enphase Energy Management Unit Collects data and from all the Micro-inverters and transmits the information to the Enphase Enlighten website.

The Enphase Envoy (EMU) is a communications gateway that collects performance information for each solar module in a user's system and transmits this data to the Enlighten website, where users can view and manage the performance of their solar power system. The Envoy can be plugged into any standard AC outlet. Enphase Micro-inverters transmit data over the existing power line. No additional wiring is required. Once the unit is plugged into an AC outlet, simply connect an Ethernet cable from the Envoy into a broadband router. Performance data is transmitted using broadband Ethernet protocols for immediate access to performance information.

The EMU is an integral component of the Enphase Energy Micro-inverter system. Itoperates between the Enphase Micro-inverters and the Enphase Enlighten web based monitoring and analysis. The EMU functions as a gateway and monitors the Micro-inverters that are connected to the photovoltaic modules. The EMU collects energy and performance data from the Micro-inverters over in-home AC power lines.It then forwards that data to the Enphase Enlighten web-based monitoring andanalysis, via the Internet, for statistical reporting.

Other Elements in the Enphase System

The Enphase Micro-inverter system is a fully integrated device that converts the DC output of a single solar module into grid-compliant AC power. In addition toperforming the DC to AC conversion, it optimizes the modules' Maximum Power PointTracking (MPPT). This integrated system maximizes energy harvest, increasessystem reliability, and simplifies design, installation and management. The Enphase Enlighten web-based monitoring and analysis analyzes the data collected by each Micro-inverter per module. Enlighten automatically detects anyshortfall in energy production, identifies possible causes, and suggests solutions to correct the problem. The Enphase Enlighten website is constantly monitoring and managing every module on every installation.

How the Enphase EMU Works

Installation and operation of the EMU requires no special computer or networking knowledge, nor any specialized equipment. It simply plugs into the house router for communications with the Enphase Enlighten monitoring and analysis website. The EMU communicates with the individual Micro-inverters over the existing power wires in the residence or business. After the EMU is installed, no additional configuration work is required.

After the EMU is installed and completes its initial scan, it assembles an internal database of all known Enphase Micro-inverters at the site it manages. At regular intervals, the EMU polls each Micro-inverter for its energy data. Using your site's Broadband router, the EMU then forwards that information on to the Enphase Enlighten monitoring and analysis website. The EMU also reports any error conditions that affect itself or the Micro-inverters. You can view both energy data and error conditions at the Enphase Enlighten web-based monitoring and analysis.


Powerline: Enphase Proprietary
LAN: Auto-negotiating

Power Requirement
AC Outlet: 120 VAC, 60 Hz, 100 mA
Power Consumption: 5 watts

Mechanical Data
Dimensions (WxHxD): 7.75" x 5" x 2.38"
Weight: 12 oz.
Cooling: Natural Convection - No Fans
Enclosure Environmental Rating: Indoor - NEMA 1

Standard Warranty Term: 1 Year
Compliance: UL 1950, EN 6950, FCC Part 15 Class B

The EMU box includes the following items:

  • Ethernet cable
  • AC power cord
  • mounting kit (one bracket, four screws, and four rubber feet)
  • user documentation