Introduction; Operation Modes Introduction - LG LGES-5048 User Manual

01 Introduction

LGES-5048 is a hybrid or bidirectional solar inverter, applicable to solar systems connected to the utility
grid and LG Energy Solution RESU 48V batteries. The Inverter should not be installed in
multiple phase combinations
The energy produced by the PV system is used to power household loads, charge the battery, and
export excess energy to the utility grid. When household loads exceed PV production, the battery is
discharged to support the loads and minimize utility grid import.
With the optional addition of remote control, such as Virtual Power Plant (VPP) participation, the
inverter and battery combination can further optimise energy usage according to price signals.

1.1 Operation Modes Introduction

LGES-5048 system normally has the following operation modes based on your configuration 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 grid fails, the system will automatically
switches to back-up mode. The back-up loads can
be supplied by both PV and battery energy.
The introduction describes a general working situation of the
LGES system. The operation mode can be adjusted
on LGES PV Master App up to the system layout. The general
operation modes are as below:
1
Mode II
When there is no PV, and the battery is
sufficient, it can supply the load together with
grid power.
Mode IV
Battery could be charged by grid, and charge
time/power could be set on LGES PV Master
or remotely controlled.