Hi
Last night i had a nice IoG slot from 7:30pm to 5:30AM. WW worked fine.
However i also had a smart schedule that said if my battery is above 80% at 9:30PM go ahead and discharge it for 1.5 hours.
Guess what? The battery discharged into the car...
Should there be a rule that says, '...if there is a clash between a discharge smart schedule and an IoG session, then ditch the discharge smart schedule and just charge everything up...' ?
Screenshot 2025-03-05 at 23.29.50
WattID:blind-poetry
admin
Thanks! I should have said that yesterday the only reason why the battery was above the specified % in the smart schedule was due to the fact that WW charged it up before hand!
However in the summer that is likely to happen more often so not sure if you might need to include a toggle at the smart schedule page that 'allows the schedule to proceed even during an IoG session this discharging into the car, but only if enough SoC left to take you to 11:30pm?'
This could be tricky however with Octopus randomly changing the schedules recently. Plus there are bound to be folk out there who may prefer discharging the battery into the car despite the efficiency losses.
Thanks for looking into it!
PANface Entirely up to you. Using the battery to charge the car is a bit pointless as you make 15p exporting and only pay 7p to import to charge the car. Best to export if you can. But even if it was not for the ££, you do loose a lot of energy converting from the battery to the car. I would rather i did not discharge the battery to the car.
michaelm Whilst users with IOG and solar storage can take advantage of our IOG functionality to top up their solar battery, our IOG integration is especially useful for users who have their system wired in a such a way that the house does see the car load.
So you just end up charging the car.
If you wanted to truly export, it's pretty obvious you'd unplug the car, and no IOG adhoc slots would be assigned, therefore I feel it makes sense to have IOG charging take priority even when export schedules are configured.
Just allows IOG users to not have to worry that their active export schedules (which they may well use from time to time) will interrupt adhoc charges that are running.
Happy to hear other IOG users' input on this.
michaelm So was the fix along the lines of my sugegstion whereby the Smart Discharge Schedule does NOT activate if an IOG schedule is in place?
If there's an IOG schedule coming active or coming up in the next few mins, a configured export schedule will be skipped.
michaelm How did you account for the fact that Octopus cwaps schedules at will recently!!
We check every minute for new IOG schedules.
There may be a race-condition, but we'll have to see how we go. I think it'll be fine. (Famous last words!)
Hi - I’ve got a number of export schedules setup after taking advice on this forum and they work perfectly, but I’ve always wondered how to get the dynamic charge slots allocated by IOG to override them and charge the battery, so I’m pleased to see this has been resolved.
However, I can’t seem to get it working for some reason. Tonight, IOG have given me slots from 20:30 but the export schedules have run.
Can you help please?
embarrassed-description
Just because it was mentioned above, Octopus prefer that you leave the car plugged in when at home, so that they can maximise the slots available to them to manage the load. And, if we consider the new world of vehicle to load/grid that will become a requirement. The likelihood is that the car will nearly always be connected to a point that is seen as house load (and for reasons of monitoring, one would argue it should be) but then this brings about the dreaded battery to EV discharge scenario.
Hopefully you can remove all instances of this being the outcome until we get to a point when this becomes almost impossible to do via standard API calls on any home battery and EV solution installed. We are a long way off that yet though.
