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15 Appendix
15.1 Application of Generator
15.1.1 Introduction of Generator Application
In the event of a power outage, the system can seamlessly switch to the generator for
power supply and continue the collaboration with the energy storage system to ensure the
uninterrupted operation of the load.
In this case, the generator functions as the utility grid to supply power for the load, and the
hybrid inverter converts the solar energy to electricity.
15.1.2 Notice for Generator Application
• Note 1: The generator should be equipped with an Automatic Transfer Switching
Equipment (ATS), enabling it to start automatically or control the generator start
by parameter setting in the event of a power outage.
• Note 2: The rated output power of the generator should be greater than the sum
of the load power and the battery charging power. If there are several inverters in
parallel, the rated output power of the generator should be greater than the sum
of the load power and the battery charging power of the inverters.
• Note 3: If the rated output power of the generator is small and cannot meet the
requirements of Note 2, the setting value of MaxChargePower can be changed
in the Menu>Setting>Advance Setting>ExternalGen to ensure that the generator
power can meet the load and battery charging use at the same time.
• Note 4: The EPS (off-grid) load power cannot be greater than the battery
discharge power to prevent the battery power from being unable to meet the EPS
(off-grid) load after the generator shuts down and the inverter will report an EPS
Overload fault alarm. If two inverters are paralleled, the EPS (off-grid) load power
shall be doubled.
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