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Time slots

Time slots define windows during which the battery is allowed to discharge. Outside these windows, the battery only charges (or remains idle).

When to use them

  • Reserve energy for evening or overnight consumption peaks.
  • Optimise tariff arbitrage (discharge during expensive hours, charge during cheap hours).
  • Control discharge by day of the week.

Configuring a time slot

Field Description
Start / end time Slot window (e.g. 14:0018:00)
Days Days of the week the slot applies to
Apply to charging If enabled, the slot also restricts charging
Target grid power Grid level the controller regulates toward during the slot

Target grid power

Default 0 W (zero grid flow). Range: -500 W to +500 W.

Value Effect
0 W Maximum self-consumption, no export
< 0 (e.g. -150 W) Maintains slight export (useful when feed-in tariff is profitable)
> 0 (e.g. +200 W) Allows slight import (reduces battery cycling)

Time slot configuration form


Time slots and predictive charging

When predictive charging is active, the controller can use time slots as grid charging windows. See Predictive charging – Time Slot mode for details.