LG CHEM RESU10H Owner's Manual page 7

SYSTEM OVERVIEW – RETROFIT BATTERY SYSTEM
The Solahart Retrofit Battery system consists of the following components:

Battery Inverter – converts power between AC and DC to charge and discharge the LG CHEM
RESU10H
Note: For safety reasons, the Battery Inverter will only operate when the mains electrical
supply is available from the grid. Your Solahart PV and Battery system cannot provide a
backup electricity supply to your home appliances if the mains supply is interrupted.

Battery – stores power generated by the PV array or supplied from the grid so the power can
be used when the sun is not shining.

Battery Interface – manages communication and power between the inverter and battery.

PV Array DC Isolators – provides means for isolating the PV array.

Battery DC Isolator – provides a means of isolating the Battery.

Inverter AC Isolator – provides overcurrent protection of the inverter and a method of isolating
the PV System from the electrical distribution grid.

Meter – measures nett electrical power to and from the grid.

(Optional) Sunny Home Manager - Monitors, tracks and allows for management of the system.
BASIC SYSTEM OPERATION
The Solahart Complete and Retrofit systems increase energy independence by using the battery to store
excess PV energy, which would otherwise be exported to the grid, so it can be used when required.
The Solahart Complete and Retrofit systems are programmed to maximise savings by minimising the power
purchased from the grid. If the power delivered by the PV and Battery is insufficient to meet domestic demands,
the power necessary to ensure the normal operation of the connected devices is drawn from the grid.
If the energy generated exceeds that required by property demands and the storage capacity of the Battery,
your electrical network operator may allow the difference to be directly injected into the grid and become
available to other users. Energy injected into the grid can be measured by electricity network operators as
either gross (everything generated) or nett (excess generated). Injected energy may or may not be purchased
by the local electrical network operator according to national and local standards, and regulations.
Figure 3 System Overview – Retrofit Battery System
ABOUT YOUR BATTERY SYSTEM
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