Delta R4E User Manual page 77

Discharge First mode
In this mode, battery will not be charged any more.
All the PV power is feed-in to home load and grid. Battery keeps discharging when there
is no PV power until it is empty.
PV Array
Battery
Home load power usage
00:00
Hybrid Inverter
Input
Discharge
or standby
Discharge first mode current flows
Excess PV power
PV power used
for home load consumption
07:00
Discharge first mode behavior
Electrical Grid
Input or
output
Output
PV power
12:00
77
What Power Monitor can do
Home Load
Battery discharges
19:00 24:00