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Predictive charging

Predictive charging is an optional feature that charges batteries from the grid when the expected energy balance for the following day is negative.

Decision logic

If (Usable battery + Solar forecast) < Expected consumption:
    Charge from grid the exact deficit
Else:
    Do not charge (cost saving)
  • Usable battery: energy currently stored above the configured min SOC.
  • Solar forecast: estimated production for tomorrow (Solcast/Forecast.Solar sensor).
  • Expected consumption: 7-day rolling average. See Daily consumption estimate.

Available modes

Mode Description
Time Slot Charges during a fixed window (e.g. overnight off-peak tariff)
Dynamic Pricing Automatically selects the cheapest hours of the day
Real-Time Price Activates/deactivates charging based on the current price

Predictive charging mode selector


Notifications

The integration sends Home Assistant notifications:

  • 1 hour before the slot starts: energy balance analysis and charging decision.
  • When the slot starts: confirmation that charging has begun.

Use the Override Predictive Charging switch to cancel predictive charging at any time.

Predictive charging notification