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e) f)
Chart 5.5
5.3Storage System Connection Mode
5.3.1 Difference between Traditional Photovoltaic System and Storage System
Growatt SP 2000 series storage plus can be connected to single-phase grid-connected inverter to build a
storage-function system. Every string can be connected to one SP 2000. If you have double MPPTs to be connected
to SP 2000 respectively, every MPPT connects one will be feasible.
The traditional single-phase inverter system is shown as below:
Chart 5.6
Traditional single-phase inverter system consists of PV panels, PV inverter, load and power grid. The inverter
supplies the power generated by solar panels to household load. Extra electricity will be fed to the grid when
generated power is more than family load needs; otherwise inverter will get power from grid for supplement.
PV Storage System with the storage plus is shown as below:
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