Tabuchi Electric THD-S55P3B-US User Manual page 2

Living of solar power 24 hours a day
This Hybrid Solar Inverter uses the electric power generated by the sun during the day. Surplus power
is continuously stored in the lithium-ion storage batteries. (Charging differs according to the operating
mode.) The power stored in the storage batteries is used to stabilize the daytime power supply as well
as a nighttime power source at night.
D
aily operation is not necessary.
Grid-tied Operation
After DC power from the PV panels is converted into AC power by the Hybrid Solar Inverter, it is
connected to the commercial power grid and used to power electric appliances.
Moreover, DC power stored in the storage batteries is used to drive the modes below, so daily
operation is not necessary.
O
perating modes can be selected according to
personal lifestyle.
■PEAK CUT Mode
PEAK CUT Mode cuts the peak during a specified time slot.
When purchasing power exceeds a set amount, the battery is discharged.
■MAX POWER EXPORT Mode
Storage batteries are charged by the commercial power grid at night. Power stored in the storage
batteries is used during the daytime to cover any PV system generation shortages and avoid peak
rate grid charges.
■ECONOMY Mode
Surplus power generated by the PV system is not only sold to the power company, but it is also
stored in the storage batteries for use at night.
■HOME BACKUP Mode
Storage batteries are kept fully charged at all times as a safeguard against power outages on the
commercial power grid.
A
utomatically switches to stand-alone operation in
the event of a power outage.
Stand-alone Operation
As long as the solar panels are generating power or the storage batteries retain a charge, the inverter
will keep running in the event of an outage on the commercial power grid by automatically switching
to stand-alone operation (Page 22).
Carefully read the precautions on stand-alone operation (Page 20) before use.
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