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Load Terminal to Retrofit the Existing PV System
figure 2-7 Load Terminal to Retrofit the Existing PV System
The LOAD terminal retrofits the existing PV system in order to maximize the use of PV en-
ergy by allowing the PV inverter to work even when off-grid.
The AC terminal of the PV inverter and the LOAD terminal of the hybrid inverter are con-
nected in parallel. This option is not available in the European region.
The PV inverter power cannot exceed the nominal power of the hybrid inverter (if it is a sin-
gle-phase PV inverter, the PV inverter power cannot exceed the single-phase nominal power
of the three-phase hybrid inverter).
Before retrofitting the existing PV system to an LOAD terminal, the "Frequency Shift Power
Control" parameter needs to be enabled. For details, please refer to "8.10.15 Frequency
Shift Power Control".
Note:
1 In zero-export scenario, the hybrid inverter can only ensure no power exported to grid it-
self but does not ensure zero export for the PV inverter. Please contact the PV inverter
manufacturer for its zero-export solution.
2 PV modules for hybrid inverter are optional.
2.8 Whole Home Backup
In this scenario, all the household loads are connected to the LOAD terminal of the hybrid in-
verter. The energy supplied to the load does not come directly from the grid. If a grid failure
happens, the household loads are still supplied with energy from PV or battery.
User Manual 2 Product Description
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