Hoymiles HY3 Series, User Manual

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4. Product Description
8
MANUAL-HY3-EN-V1.00
User Manual
4.3 Operating Mode Introduction
Several Common Operation Modes
Mode 1
In the daytime when there is sufficient
sunlight, the solar energy supports the
loads first; excess energy is stored in
battery; rest energy is fed into grid (or
limited if required).
Mode 2
In the night, or when there is not
sufficient solar energy, the battery
supplys the loads together with grid and
solar if available.
Mode 3
When the grid is not available, the
inverter can supply the loads by energy
from solar and battery.
Mode 4
The inverter can also charge the battery
with energy from grid.
For instance, in areas with Time of Use
tariff, users can choose to charge the
battery in low tariff periods, and use
stored energy in high tariff periods.