Introduction To Operating Modes - Goodwe ET Series User Manual

1. INTRODUCTION
The GoodWe ET inverter series, also known as hybrid or bidirectional solar inverters, are designed to
manage energy in solar systems that use PV, batteries, loads, and grid systems. With the help of these
inverters, the energy generated by PV systems can be optimized for household loads. Any excess
energy is stored in the battery, and once the battery is fully charged, the excess energy is exported to
the grid if it is allowed. If the PV panels are not producing and the battery is charged, the energy for
consumption in the house is supplied from the battery. After the battery is discharged, the energy is
supplied from the distribution network to meet the household energy requirements.

1.1 Introduction to operating modes

The operating mode of the ET series inverter can be set according to the required conditions.
Below are examples of the inverter's basic operating modes.
Mode I
When PV is produced, consumption in the house is
supported first. Excess energy is stored in the
battery, after the battery is charged the excess
energy goes to the grid. (If the inverter is enabled
for surplus to the grid)
Mode 3
In the event of a distribution network failure, only the
„Back-Up" output (backed-up appliances) will remain
active. This output is powered by PV and battery.
Note:
The introduction describes the general operation conditions of an
ET system. The operating mode can be adjusted in the PV Master
App including the system layout. The general operating modes for
the ET system are shown below:
Mode 2
When the PV is not produced, the energy for
consumption in the house is supplied from the
battery, and in case of higher consumption, from
the grid
Mode 4
Battery charging and discharging can be set using a
schedule. These time schedules are set up using the
PV Master app.