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battery power is running out, grid will back up the load.
NOTE: This option will become ineffective during AC charging time and the priority
will automatically become 1
st
Grid and 2
nd
Battery order. Otherwise, it will cause
battery damage.
Grid-tie with backup (IV): Users are only allowed to set up peak time and off-
peak electricity demand.
Working logic under peak time:
PV energy supply priority: 1
st
Load, 2
nd
Battery and 3
rd
Grid
PV power will provide power to the load first. If PV power is sufficient, it will charge
battery next. If there is remaining PV power left, it will feed-in to the grid. Feed-in
to the grid is default disabled.
Battery charging source: PV only
Only after PV power fully supports the load, the remaining PV power is allowed to
charge battery during peak time.
Load supply source: 1
st
PV, 2
nd
Battery, 3
rd
Grid
PV power will provide power to the load first. If PV power is not sufficient, battery
power will back up the load. If battery power is not available, grid will provide the
load. When PV power is not available, battery power will supply the load first. If
battery power is running out, grid will back up the load.
Working logic under off-peak time:
PV energy supply priority: 1
st
Battery, 2
nd
Load and 3
rd
Grid
PV power will charge battery first. If PV power is sufficient, it will provide power to
the loads. The remaining PV power will feed to the grid.
NOTE: The max. feed-in grid power setting is available in parameter setting.
Please refer to software manual.
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