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01 Introduction User Manual V1.6-2022-01-05
1.1 Operation Modes Introduction
01 Introduction
The A-ES series, also called hybrid or bidirectional solar inverters, provides energy management
in a PV system that includes solar modules, a battery, loads, and utility grid connection. Energy
produced by the PV system is prioritized to supply loads and then any excess energy to charge
the battery. When the battery is fully charged, excess energy can be exported to the utility grid
(if permitted).
The battery shall discharge to support loads when PV power is insucient to meet self-
consumption needs. If battery power is not sucient, the system will take power from the utility
grid to support loads.
The preceding introduction describes the general operation
of the A-ES system. The operation mode can be changed
with the PV Master app based on the system layout. The
possible operation modes for the A-ES system are shown
below
A-ES system normally has the following operation modes based on your conguration and
layout conditions.
Mode I
The energy produced by the PV system is used
to optimize self-consumption needs. The excess
energy is used to recharge the batteries, any
remaining excess is then exported to the grid.
Mode III
When the grid fails, the system will
automatically switch to back-up mode. The
back-up loads can be supplied by both PV and
battery energy.
Mode II
When there is no PV and the battery is
sucient, it can supply the load together
with the utility grid.
Mode IV
Battery could be charged by grid, and
charge time/power could be set to various
options on the PV Master App.
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