LIVOLTEK Hyper-2000 User Manual page 15

3.8.1 On-Grid Self-Use Mode
The on grid self-use operating mode is recommended for when the system is installed in an
area with a stable grid. The purpose is to increase self-consumption of PV energy and save
electricity costs. When Inverter is set to work in this mode:
• During daytime and there is sufficient PV Power,
The PV energy is used to supply local loads as first priority and then charge the battery,

any excess energy will be fed into grid
When battery is fully charged, PV energy is supplied to the local loads and fed into grid

During nighttime or there is not sufficient PV Power,
•
Battery is discharged to supply local loads until reaches its power limit

required, it will be imported from grid.
The battery will stop to discharge when the value is lower than the discharge cut-off value,

which is available for setting, the local loads will be supplied from the grid.
The switch from battery power, PV power and grid power is automatic and seamless.

When grid fails,
•
In the event of a grid failure or there's no mains, the hybrid inverter automatically switches
to Off-grid operation mode. The off-gird mode ensures that the system forms a battery-
backup grid that utilize power from PV production and battery to supply power to critical
loads.
*1: The inverter can be set not to feed power into the grid. But a small amount of energy
will still inevitably be fed into grid due to unpredictable PV power changes and load
fluctuations.
*2: The battery power supply can be restored when the battery is charged to the "set value
+10%" by solar.
3.8.2 On-Grid Self-Define Mode
When operating in this mode, the charging and discharging time can be set flexibly as required.
This mode is ideal for those who want to store the power in the battery when the electricity price
is at an off-peak rate and use the power during peak rate time or save the energy for grid outages.
During charge time, solar energy and grid will charge the battery bank as first priority at

the same time, any excess PV energy will supply local loads and then be fed into the grid *1 .
During discharge time, PV power will supply local loads first, then excess PV power and

battery power will be fed into grid
The inverter will automatically work in Self-Use mode outside the set time of Charge or

Discharge.
*1: The inverter can be set not to feed power into the grid. But a small amount of energy
will still inevitably be fed into grid due to unpredictable PV power changes and load
fluctuations.
*2: The battery power supply can be restored when the battery is charged to the "set value
+10%" by solar.
*1
.
NOTICE
*1
.
NOTICE
12
*1
.
*2
, if extra power is