There are three working modes: Backup Standby, Self-Consumption, and Load Shifting. They are defined as follows:

·Backup Standby: The FHP will immediately charge to 100% SOC and standby while on grid. During an outage, the aPower X battery would work with solar system to power the backup loads.

·Self-Consumption: The excess electricity generated by the solar system will be stored in the FHP system in real-time. If the solar production is insufficient to power the home loads, FHP system will discharge as a supportive power source, thus helping to reduce electricity consumption from the grid.

·Load Shifting: If the electricity rate in the homeowner’s area changes throughout the day, based on demand, the homeowner can select the load shifting mode to customize the peak and valley times according to the electricity rate. The FHP will prioritize solar and aPower X battery power during peak rate periods. During the valley periods, the system will use power from the grid, the PV system, and the batteries in balance according to household loads.

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