Battery usage

If a battery is connected to the inverter, usage of the battery can be configured here.

The following options can be used to optimise battery usage:

Parameter	Explanation
No optimisation	The battery is used as normal for charging and discharging. All other settings should be configured under the battery settings.
Time-controlled battery usage	There are times when the costs of electricity procurement are relatively high (different tariff models). Therefore, it may make sense to allow the battery to discharge during these periods and to allow charging outside of these periods. The times set here can be overridden by the specifications of an activated external battery management system. No limitation: No conditions have been set for this time period. Battery charging blocked, battery discharge permitted in the event of demand from house: The battery is not charged in this time period. However, the battery is allowed to discharge if there is demand from the house. Battery discharge blocked, battery charging permitted in the event of excess power: The battery is not discharged in this time period. However, the battery is charged as soon as there is excess power available. NOTE! Note whether the local regulations permit the storage unit to be charged from the public grid. If you are in any doubt, ask your installer. Battery charging to xxx% SoC with max. xxx W grid demand, battery discharge in the event of demand from house: The battery is charged in this time period. Energy is obtained from the public grid until the specified SoC value is reached with the set value for grid demand. This may be appropriate if you have a particularly economical grid energy tariff at certain times. However, the battery is allowed to discharge if there is demand from the house. Battery charging to xxx% SoC with max. xxx W grid demand, no battery discharge in the event of demand from house: The battery is charged in this time period. Energy is obtained from the public grid until the specified SoC value is reached with the set value for grid demand. This may be appropriate if you have a particularly economical grid energy tariff at certain times. However, the battery is not allowed to discharge if there is demand from the house.
Dyn. electricity tariff	If a dynamic electricity tariff is being used, the behaviour for battery charging from the grid can be configured here. Region: Selection of country, e.g. DE for Germany. Own electricity price: Enter premiums from energy supplier, which are collected in addition to the trading price of electricity. The premiums can be entered as a percentage or fixed monetary value. Also specify the taxes that are incurred on the electricity price. The current total electricity purchase price is then displayed to you under Own electricity price (Ct/kWh). Graphic illustration of dynamic electricity price: The graphic illustration provides you with an overview of the current and past electricity price of the last 7 days. Charging strategy: The battery is charged when the set conditions are met. This is the case when the price falls below the fixed price or the price is reduced by the percentage of the average price of electricity. Battery charging to: Here set the maximum battery SoC up to which the battery is to be charged from the grid and at what maximum power. When the conditions are met, the battery is charged in line with the settings. Prevent PV feed-in to the grid with a negative electricity price: If the trading price of electricity is negative, as a PV system operator, you do not usually receive any payment for electricity fed in or you may even have to pay to feed in. Activating this function prevents feed-in to the public grid. Contact your energy supplier to find out the precise conditions.

Parameter

Explanation

No optimisation

The battery is used as normal for charging and discharging. All other settings should be configured under the battery settings.

Time-controlled battery usage

There are times when the costs of electricity procurement are relatively high (different tariff models). Therefore, it may make sense to allow the battery to discharge during these periods and to allow charging outside of these periods.

The times set here can be overridden by the specifications of an activated external battery management system.

No limitation:
No conditions have been set for this time period.

Battery charging blocked, battery discharge permitted in the event of demand from house:
The battery is not charged in this time period. However, the battery is allowed to discharge if there is demand from the house.

Battery discharge blocked, battery charging permitted in the event of excess power:
The battery is not discharged in this time period. However, the battery is charged as soon as there is excess power available.

NOTE! Note whether the local regulations permit the storage unit to be charged from the public grid. If you are in any doubt, ask your installer.

Battery charging to xxx% SoC with max. xxx W grid demand, battery discharge in the event of demand from house:
The battery is charged in this time period. Energy is obtained from the public grid until the specified SoC value is reached with the set value for grid demand. This may be appropriate if you have a particularly economical grid energy tariff at certain times. However, the battery is allowed to discharge if there is demand from the house.

Battery charging to xxx% SoC with max. xxx W grid demand, no battery discharge in the event of demand from house:
The battery is charged in this time period. Energy is obtained from the public grid until the specified SoC value is reached with the set value for grid demand. This may be appropriate if you have a particularly economical grid energy tariff at certain times. However, the battery is not allowed to discharge if there is demand from the house.

Dyn. electricity tariff

If a dynamic electricity tariff is being used, the behaviour for battery charging from the grid can be configured here.

Region:
Selection of country, e.g. DE for Germany.

Own electricity price:
Enter premiums from energy supplier, which are collected in addition to the trading price of electricity. The premiums can be entered as a percentage or fixed monetary value. Also specify the taxes that are incurred on the electricity price.
The current total electricity purchase price is then displayed to you under Own electricity price (Ct/kWh).

Graphic illustration of dynamic electricity price:
The graphic illustration provides you with an overview of the current and past electricity price of the last 7 days.

Charging strategy:
The battery is charged when the set conditions are met. This is the case when the price falls below the fixed price or the price is reduced by the percentage of the average price of electricity.

Battery charging to:
Here set the maximum battery SoC up to which the battery is to be charged from the grid and at what maximum power. When the conditions are met, the battery is charged in line with the settings.

Prevent PV feed-in to the grid with a negative electricity price:
If the trading price of electricity is negative, as a PV system operator, you do not usually receive any payment for electricity fed in or you may even have to pay to feed in. Activating this function prevents feed-in to the public grid. Contact your energy supplier to find out the precise conditions.