Installation Guide
Chapter 1: Introduction
Terminology
The following terms are used in this document:
Export: The power injected to the grid.
Import: The power purchased from the grid.
Export/Import meter: A meter that is installed at the grid connection point and
measures the energy/power exported/imported to/from the grid.
Consumption: The power consumed by the site.
Consumption meter: A meter that is installed at the load consumption point and
measures the energy/power consumed by the site.
Self-consumption: The PVpower consumed by the site and not fed into the grid.
Production: The power produced by the PV system.
Production meter: A meter that is installed at the inverter output or site AC
connection, or in the inverter (a built-in revenue grade meter), and measures the
energy/power produced by the PVsystem or site.
Figure 1: Terminology Illustration
Three-phase grid configuration types:
Wye: In a Wye ("Y") configuration, all three phases are connected at a single neutral
point. Wye systems utilize five wires - three hot, one neutral and one ground.
Delta: In a Delta configuration, the three phases are connected in a triangle. Delta
systems utilize four wires - three hot and one ground.
The SolarEdge Energy Meter with ModbusConnection
The SolarEdge Energy Meter with ModbusConnection (also referred to as “the meter”)
enables measuring the power and energy of the photovoltaic (PV)system.
Energy Meter with Modbus Connection MAN-01-00270-1.3
6 Chapter 1: Introduction