On Octopus Intelligent Go, the car's 6-hour cheap-dispatch allowance is independent of the house's rate. Once the car's daily cap (octopus_slot_max) is used up, its own excess charging reverts to the standard/peak rate regardless of time of day - while the house continues on its normal cheap night rate (or a dynamic daytime slot) for that same clock-time.
Predbat's cost calculations already handle this correctly:
The gap is purely in the plan display: the "Import p" column and its tooltips only ever show the house rate for a given time-slot. When the car is quietly paying the peak rate for excess charging during a period the house shows as cheap, there's no way to see that from the plan - a slot can look cheap while the car charging happening in it isn't actually billed at that rate.
Possible directions (not yet scoped):
- A second rate figure or marker on the "Car kWh" cell when its effective rate diverges from the shown house rate for that slot.
- An addition to the existing tooltip noting the car-specific rate when it differs.
Not a regression - this has always been the case; raised while confirming the calculation correctness for #4624.
On Octopus Intelligent Go, the car's 6-hour cheap-dispatch allowance is independent of the house's rate. Once the car's daily cap (
octopus_slot_max) is used up, its own excess charging reverts to the standard/peak rate regardless of time of day - while the house continues on its normal cheap night rate (or a dynamic daytime slot) for that same clock-time.Predbat's cost calculations already handle this correctly:
rate_add_io_slots()(the general "Import p" plan column) leaves the real house rate untouched once the cap is hit.load_octopus_slots()(car-charging cost accounting, fixed for the split-at-cap bug in plan showing incorrect monatary values when octopus intelligent car charging running #4624/fix(octopus): split IOG slots at the daily low-rate cap boundary #4644) correctly falls back to the peak rate for the car's own excess kWh.The gap is purely in the plan display: the "Import p" column and its tooltips only ever show the house rate for a given time-slot. When the car is quietly paying the peak rate for excess charging during a period the house shows as cheap, there's no way to see that from the plan - a slot can look cheap while the car charging happening in it isn't actually billed at that rate.
Possible directions (not yet scoped):
Not a regression - this has always been the case; raised while confirming the calculation correctness for #4624.