IOG question - looking to move from Agile

johalareewi

With the current pants Agile overnight rates and lots of solar PV coming up I am wondering if IOG would be a better bet for me. My daily average rate on Agile at the moment is around 18p/kWh (used to be around 9p).
I have an Ohme Pro charger and a PHV so Octopus say I can have IOG.
I also have a GE inverter (gen1), a GE battery (8.2kWh) and 4kW solar PV.
On the Octopus site it says you get 7p charge slots when charging an EV and 6 hours overnight.
How does this work in practice?

KristianS

johalareewi It works in practice very well. Each night from 23:30 - 05:30 you will get the low rate for charging your car and home battery. If there are other slots required to charge your vehicle, you will get those too at the lower rate. If you use your home battery during the higher price it can work out to be very cost effective. If however you need the grid outside of these hours, it does cost more, obviously. I moved from Agile which I was happy with, but am probably saving another 40% over Agile being on IOG

ChrisR

johalareewi IOG does work well. I have 4.6kW of Solar, and 8.2kWh + 9.5kWh GivEnergy Batteries + ASHP and my average Electric price for the last month was 8.05p/kWh.
All you need to do is plug your car in and use the App to tell Octopus how much charge you want, and by what time. Octopus will give you a schedule, and all Electric during those slots are at 7p. Set it up with Wonderwatt and they will make sure you’re house battery is charged at the same time.

admin

johalareewi I don’t think it works with Ohme chargers though. WW IOG integration works if you either have an Octopus IOG compatible EV or car charger, and your mapped charges show up in the Octopus app.

For Ohme, it looks like Ohme manages it and we cannot see any mapped slots on the Octopus side.

johalareewi

admin The Ohme charger is IOG compatible according to Octopus (it was them that installed it). But if IOG is managed by the Ohme app, that is bad news. The app is dreadful and I would love to dump it and have the Ohme managed directly by Octopus.
If WW can't see the mapped slots that is a PITA because WW won't be able to stop the GE battery emptying into the EV charger.

admin

johalareewi If WW can't see the mapped slots that is a PITA because WW won't be able to stop the GE battery emptying into the EV charger.

Yep, precisely, see also recent thread here from an IOG user with Ohme, and the link on Octopus where you'd normally see mapped slots would take you to the Ohme interface. We get no IOG slots from Octopus for this user.

https://community.wonderwatt.com/d/840-smart-discharge-schedule-and-iog-charge-clash/20

Also, directly from the horse's mouth:

https://octopus.energy/blog/intelligent-ohme-faqs/

"You'll need to use the Ohme app to control your charging; after you've signed up, you’ll see a new devices page in your Octopus app with an option to ‘Go to Ohme’."

johalareewi

Which chargers are others using that work with WW? Would love to get rid of the Ohme and would like something that works with WW and IOG.

KristianS

johalareewi I am assuming your ~~BEV~~ PHEV isn't supported directly? The reason I ask this, is because I do not have wall charger and I control my vehicle directly [Volkswagen ID.7] and that removes the requirement to support the charger.... I appreciate that this may complicate the how you connect, but just putting this out there.

admin

johalareewi MyEnergi Zappi is definitely confirmed to be working, as Octopus can control the charger directly.

Hopefully other will list theirs here too.

It really is all about whether Octopus controls the charge. Be it through the EV charger, or the EV directly. If either one of those is true, WW will be compatible too and read the mapped charges from Octopus' API.

MrMessy

AFAIK the only chargers using the Octopus API are from Indra, Hypervolt (Home3 and pro only), MyEnergi, and Wallbox.

admin

Oddly enough we have got some slots through for an Ohme charger recently, see also the thread here: https://community.wonderwatt.com/d/840-smart-discharge-schedule-and-iog-charge-clash/26

But I'm quite unsure whether this is consistently all slots and we've no visibility of the underlying mechanism or sync between Ohme and Octopus.