Delay Charging until next ‘off-peak’ period

Feature Requests
1

Most of the EV charging I do is from excess solar production, however at times of low sunshine I need to charge from the grid. I have been using two schedules for this. One at night and one during the day when electricity is cheap.

The problem is I sometimes forget to turn of the schedule off after charging has taken place.

What would be ideal is a feature that initiated a once off charge for x hours (or y Kw) when next in a cheap period / schedule.

2

Yes we need a Charge OffPeak button.

I’ve also been looking for a similar feature or capability. I want to use Charge on Solar daily and yet still have a simple way for my wife to initiate a full car charge from the grid only when needed.

I primarily use Charge on Solar to casually accumulate battery charge to cover our daily needs. About once a week we need to take a long trip and I may want to start an off peak charging session from the grid to achieve a specific SoC in the car battery.

I’d like a version of the Charge Now button that does the following:

  1. Use either the ToU rate schedule from the Powerwall3 or just a simple Grid Charging Allowed schedule in ChargeHQ to identify the next low cost charging period.
  2. When ready to start charging then Set the Powerwall’s Backup Reserve to the current Powerwall Charge Level to preserve that SoC even while charging the car from the grid.
  3. Start charging the car from the grid. (Using the car’s normal charge rate and charge limit is OK)
  4. When car finishes charging then restore the Powerwall’s Backup Reserve to the value it was before step 2 above.

This might be implemented either as a separate Charge OffPeak button, or as config options to the Charge Now button.

I’d say something like this is a logical and even necessary adjunct to the main Charge on Solar feature. Charge on Solar is great, but how do we charge our cars when we need more???