The Enphase® Envoy S Metered + DRM communications gateway delivers solar production and energy consumption data to Enphase® Enlighten monitoring and analysis software for comprehensive, remote maintenance and management of the Enphase System.
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With production metering and consumption monitoring options, Envoy S Metered +DRM is the platform for total energy management and integrates with the Enphase® AC Battery.
The Envoy S Metered + DRM reads the energy consumption in addition to the solar generation which allows the amount of excess solar generation to be accurately measured. This is achieved by having a current transformer (CT) for the solar supply and a current transformer (CT) for the supply from the grid. This provides the ability to accurately size the amount of battery storage required to store the excess solar generation for use at a later time.
The Enphase AC Batteries are connected to the switchboard using a standard single, twin and earth, power cable and circuit breaker. The Envoy S Metered + DRM communicates via this power cable using powerline carrier which is a small signal over the 230V power circuit (no communication cables required).
The Envoy S Metered + DRM also communicates with microinverters in the solar system using power line carrier.
It is recommended that the Envoy S Metered + DRM is installed to gather data so an informed decision on battery capacity can be made. For example if there is only a small amount of excess solar generation only one or maybe two Enphase AC batteries may be required rather than purchasing a large energy storage system. To find out more about the features and benefits of the Enphase AC battery click here
The Envoy S Metered + DRM has inbuilt Wi-Fi, Ethernet or optional mobile capability allowing variety of methods for connect to the internet. Perfect for Australian homes!
The mobile capability is provided by the Enphase Mobile Connect cellular modem. To find out more about Enphase Mobile Connect click here
The Envoy S Metered + DRM has bidirectional communications to allow for remote upgrades of microinverters and can communicate with up to 600 micro inverters. That’s commercial systems up to 150kW with one Envoy. For larger commercial systems multiple Envoy’s can be used.
DRM is an acronym for Demand Response Mode.
DRM is new Australian Standards requirement for grid connected inverters as per AS NZS 4777.2-2015.
DRM are a set of various operating modes (DRM 0, DRM 1, ……DRM 8) which the inverter can be set to.
Below are the various Demand Response Modes.
The standards require that the inverter shall support the demand response mode DRM 0 and should support the other demand response modes. NOTE: The only mandatory demand response mode is DRM 0. Support for other demand response modes is optional and may not be applicable for all sizes of inverters.
The electricity utility selects the mode via a demand response enabling device (DRED) which is a separate device connected to the Envoy S Metered + DRM. A signal is sent over the power lines to the DRED by the utility to operate the various modes. (power line carrier signal)
This allows electricity utilities to control the operation of the inverter to better manage the demand and stability of the electricity grid. This allows more solar to be connected to the grid while maintaining effective grid stability.
No, there is no additional device required. DRM is included in the Envoy S Metered + DRM. The DRED is a separate device.
This video explains how the Envoy S Metered is installed.
This video provides system installers with an overview of Enlighten and how it ties into the system commissioning process.
Manufacturers warranty of 5 years
To read more about Enphase Energy please click here
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AC Solar Certified retailers and installers are available in Queensland, New South Wales, Victoria, South Australia, Northern Territory, Tasmania, Western Australia, Australian Capital Territory and New Zealand. If you live in Sydney, Melbourne, Brisbane, Adelaide, Canberra, Perth, Darwin, regional towns or cities in any state of Australia and New Zealand you are interested in purchasing a solar power system for our home or business please complete the enquiry form above. We will respond within two business days with contact details of AC Solar Certified businesses in your area, and we will also arrange for the AC Solar Certified businesses to contact you to discuss your requirements.