SMA Solar Technology AG STORAGE PACKAGE - BUSINESS, System Manual, Page: 24 / 30

6 Commissioning SMA Solar Technology AG
System Manual SPBusiness-SH-en-10 24
4. Enter all the data of the Janitza UMG 604-PRO.
This is necessary so that the SMA Inverter Manager
can control the storage system according to the
data of the power analyzer.
6.7.4 Setting Time-of-Use (optional)
The function Time of Use allows the reduction of energy costs by effectively using different electricity
tariffs throughout the day. For this, periods can be defined in the LCS-Tool during which the battery
can be charged cost-effectively and periods during which the battery is discharged when the
energy costs are high.
The battery can be charged up to 60 kW. In the standard configuration, the battery can be
discharged with 60 kW. If the system is equipped with the Storage Extension Kit TV-10, the battery
can be discharged with 75 kW.
Battery behavior during the charging period:
• The battery will be charged at the specified charging power. At night, the energy will be
directly drawn from the utility grid. If there is unused PV energy available for charging the
battery during the day, the missing energy will be drawn from the utility grid.
• Discharging and controlling the battery are blocked for the charging period.
Battery behavior during the discharging period:
• If power is drawn at the point of interconnection, the battery inverter attempts to compensate
for this by discharging the battery.
• If excess PV power is being fed in at the point of interconnection, the battery inverter attempts
to balance this by charging the battery.
• If the maximum charging power of the battery system has been exceeded during the
discharging period, power is fed into the utility grid.
• If the maximum discharging power of the battery system has been exceeded, power is drawn
from the utility grid. This power is not used to charge the batteries.