14
10.4 Select the switch to the grid-tied mode or the off-grid mode according to the actual situation. After select the work
mode, the corresponding mode indicator will be lighted after 30 seconds, and the system will start working at the same
time. If it is the off-grid mode, the AC The output socket will have AC output power.
10.5 Connect with solar panel, the solar charging indicator will be lighted after waiting for about 1 minute,
10.6 Connect with the grid power (if the system meets the conditions of intelligent grid-tied mode, the system will run
automatically).
10.7 If the grid power fails or is abnormal, it needs work as off-grid mode, can connect small household loads to the AC
output socket (running in off-grid mode).
10.8 Turning off steps are reversed.
11. Solar panel selection
Before select the proper solar panel, the following parameters will be considered:
1) . The Voc of solar panel can not exceed the system’s max PV Voc .
2) . The Voc of solar panel should be in the allowable range.
Item
ESS-1KW
Max PV Voltage (Voc)
150dc
MPPT Voltage Range
36Vdc-150Vdc
Take 400W solar panel for example, the recommend solar panel for ESS 1KW energy storage system is as follows:
Power Output
（
Pmax
）
370W
1pc or 2pcs or 3pcs in series
connection
Voltage at Pmax
（
Vmpp
）
34.4V
Current at Pmax
（
Impp
）
10.89A
Open-circuit Voltage
（
Voc
）
41.6V
Short-circuit Current
（
Isc
）
11.45A