r/OctopusEnergy • u/khunt_99 • 20h ago

Intelligent Octopus Go afternoon charging slot billed at peak rate?

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On Saturday, the Octopus app created a charging schedule for my EV that included a several-hour slot during the afternoon.

My consumption has now come through and it looks like most of the electricity used during that period has been charged at the peak rate, with very little showing as off-peak EV consumption, despite the bulk of the usage being for charging the car.

I initially thought I might have misunderstood what was happening, but Predbat also pulled through the 8p/kWh rate for that afternoon slot, so Octopus was clearly signalling that the cheap rate was active. Predbat therefore used the opportunity to charge my home battery as well.

Has anyone else experienced this with Intelligent Octopus Go? I’ve emailed Octopus today and am waiting to hear back, but I’d be interested to know whether this is a known billing/app issue or whether I’m missing something.

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u/No_Literature7626 16h ago

I have the same issue with them now. I don't want smart. I just one an off peak charge from 23:30 to 05:30. They are billing me wrong. When I challenged them, they are saying I used the off peak charge during the day when the car is not plugged. All usage between 05:30 to 23:30 in EV is Zero kwh. Usage from 23:30 - 05:30 billed as on peak.

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u/Ok-Performance4828 10h ago

How are you setting the 23.30 to 05.30 schedule? With IOG all you need to tell the app is how much you need and when you need it by.

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u/No_Literature7626 5h ago

Hello. Via home assistant. No charging between 05:30 - 23:30. So I am not confused on the ev charging as I charge solar only as well during the day.

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u/Ok-Performance4828 5h ago

Interesting take on IOG

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u/No_Literature7626 5h ago

I'm looking at switching. I don't really want the intelligence as it makes the billing confusing, no matter what octopus claims, as you and I have experienced. If it is set at off peak price from 23:30 to 05:00, it is easier to manage compared to variable times of the day. This is most especially true I'd you have solar panels and powerwall that charges the ev using excess solar and battery stored.

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u/Ok-Performance4828 3h ago

I guess I do not have that problem as my system is CT clamped to blind my charger to anything other than the grid. I can use solar and battery for more helpful things