Setting options for peak load shaving

Threshold value for peak load shaving

Limiting value for the grid supply from which the battery is to be used to reduce peak loads.

Only whole numbers are accepted as an entry.

Billing interval in the tariff

Interval for billing the performance prices:

If the tariff of your electric utility company does not specify an interval for billing the performance prices or if the interval for billing the performance prices is not known, select the Unknown option.

Adjustment

If no value is specified for the Billing interval in the tariff, the option Immediate adjustment is always active. In this case, peak load shaving is controlled according to the instantaneous value of the grid supply at the point of interconnection.

If a value for the Averaging interval in the tariff is specified, the option Averaging interval can be selected. In this case, peak load shaving is controlled according to the averaging value of the grid supply at the point of interconnection. If a peak load that is too high cannot be curtailed, the resulting overload can be compensated for at another time in the averaging interval. It can happen that the inverter curtails the grid-supplied power even further than specified by the threshold for peak load shaving.

Automatic threshold adjustment

Only if a value for the Averaging interval in the tariff is specified, can the function Autom. threshold adjustment be used.

If the option Adaptively increase threshold is activated and the threshold for peak load shaving could not be observed despite adjustment via the averaging interval, the threshold is automatically increased. Exceeding the original threshold specifies the measure for the adaptive increase.

Optionally, the threshold for peak load shaving can be reset to the originally entered value at the end of the billing period.

Battery charge

The parameter Battery charge controls the charging behavior of the inverter during peak load shaving:

If the state of charge of the battery should always be as high as possible, for example, activate or leave the option Recharge start voltage corresponds to threshold for peak load shaving activated for the parameter Battery state of charge.

If recharging of the battery from the utility grid is to be avoided, for example, deactivate the option Recharge start voltage corresponds to threshold for peak load shaving and set the Recharge start voltage to 0 kW for the parameter Battery state of charge.