Outback Power Systems FLEXpower ONE One Fully Pre-Wired Single Inverter System Installation Manual - Manual (Page 16)

Planning
Off-Grid Applications
In off-grid applications, the FLEXpower ONE can use the harvested energy from the battery bank as
the primary power source. An AC generator can also be connected to support the system
when required.
Figure 4 Off-Grid Applications (Example)
Grid-Interactive Applications
In grid-interactive applications, grid power is used to run the loads. When excess PV is available from
the batteries, the FLEXpower ONE supports those loads with the PV. When the PV exceeds the load
requirements, the FLEXpower ONE sells that excess power back through its input, to the utility grid.
When the utility grid is not available, the FLEXpower ONE takes over to run the loads with PV and
energy stored in the battery bank.
Figure 5 Grid-Interactive Applications (Example)
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