1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Modes and Mechanisms
The following four modes are available during grid-tied operation. To switch modes, see the "Remote Controller"
section (Page 12) of the User's Manual.
8
9
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
PEAK CUT Mode
Power Selling
Charging up to
max. 1.5kW
A
B
C
Household Load
Solar Power Generation
Peak cut of Demand
Discharge
Threshold 2
Threshold 1
PEAK CUT Mode cuts the peak during a specified time
slot. When purchasing power exceeds a set amount, the
battery is discharged.
Power Generated,
Household Load (kW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Time
Power is sold
MAX POWER EXPORT Mode
MAX POWER EXPORT Mode minimizes use of “peak electricity” and
“purchased electricity” by charging the storage batteries at night when
utility rates are low and discharging the stored power during the day
and evening to run connected electric appliances.
D
Power is
purchased
Surplus PV-generated power is
sold to the commercial power grid.
Power cannot be generated at night or when it rains.
When there is not enough power coming from the PV
system or storage batteries, power is supplied by the
power company.
E
Time
Power Generated,
Household Load (kW)
5
4.5
4
3.5
3
2.5
2
1.5
1
0
0.5
Household Load
Solar Power Generation
Nighttime Charging 1.5 kW
Discharge up to
max. 2.0 kVA
Power Selling
Power purchasing
over 2.0 kVA
When purchasing power (Subtract Solar Power Generation from Household Load) exceeds purchasing
power threshold, the battery is discharged.
The system performs surplus or forced charging.
During surplus charging, the battery is charged if solar power generation exceeds demand power
generation.
During forced charging, the battery is charged at 1.5 kW from solar power generation and grid power
generation.
A, C : Discharge time slot
B : Charge time slot
• Two discharge time slots can be set per day.
• One charge time slot can be set per day.
• A purchasing power threshold can be set for each discharge time slot.
• The charging method can be selected during the charge time slot.
D
E