Congratulations on getting an EV!

Intelligent Go looks attractive.

Where did you get the information about export? It doesn't seem to be mentioned on https://octopus.energy/smart/intelligent-octopus-go/ and last time I asked them about a similar tariff they couldn't combine it with my FITs?

Posted By: revorThanks for the tip to change browser keep getting prompts to download Chrome is that ok

Depends on your attitude. If it was my machine I would find out what was causing the prompt and disable it (i.e. terminiate it with extreme prejudice )

more info here https://octopus.energy/help-and-faqs/articles/can-i-still-export-my-energy-if-i-m-on-an-ev-tariff/

Ah, they've changed the rules. I must have asked them when the previous rules applied.

FIT pays for both generation and for export (usually deemed at 50% generation)

Been looking at Octopus Intelligent Go and the way I read it you can get your cheap electricity at night as well as exporting during the day at fixed 15p per Kwh.

I think if you're on Intelligent Octopus Go then you can be paid on the Outgoing Fixed Lite tariff, which is 8p per kWh actually exported. So I'd need to consider how that compared with FIT rates for a deemed percentage. And I'd need to get a smart meter!

FIT is made up of two parts. There's a payment for generation and there's a payment for export. Last time I was paid 18.72 p/kWh for generation and 6.79 p/kWh for export. Export can be and often is 'deemed' at 50% of generation when there was no export meter fitted when the system was installed. Or it can be based on actual export if there is an export meter.

I believe Outgoing Fixed Lite is used if you are on the Octopus Go tariff, as explained on the page you linked: https://octopus.energy/help-and-faqs/articles/can-i-still-export-my-energy-if-i-m-on-an-ev-tariff/ I don't understand why.

Need to distinguish between their Intelligent Go tariff and just plain ordinary Go tariff.

'Intelligent' Go is the one where they choose when exactly to charge your car, by connecting to remotely control your charger and your car - compatibility required for both. Could happen anytime day or night. You also get 6 hours cheap import 7.5p at fixed times overnight, and can choose 15p Fixed export, because this is their new smart tech and they're keen to promote it.

The normal Go is their straightforward 4 hours cheap rate 9p with no connectivity. You can choose 8p export ('Fixed Lite').


Octopus Agile tariffs have been zero or negative the last few days, it's been a sunny windy warm period across Europe. I think the UK set new records for lowest % of fossil power on the grid (<5%) and lowest carbon intensity (<20g/kWh) but not seen anything official. We were once told that the grid would collapse with such low % of spinning inertia from fossil turbines, but seems that it hasn't yet... still only April.

GBF login doesn't seem to be compatible with mainstream browsers anymore. No offence to firefox.

Thanks for that I have seen it before but could not find it. If there are problems opening the file, it would not open for directly, security issue, but copy the link and paste it in a new tab on your browser.

<blockquote><cite>Posted By: WillInAberdeen</cite>GBF login doesn't seem to be compatible with mainstream browsers anymore. No offence to firefox.</blockquote>

i do not have issue logging in but cannot start a new topic and when I post replies it says not logged in when I am and have to log in with name and password in the popup box before it is accepted.

Seems will have an issue with charging EV with my setup. I do not think there is a way I can charge the car without using the energy in the home battery. The preference for the system is use solar 1st then battery then grid. Charging the vehicle will draw from the battery 1st don't think there is a way for the car charger to distinguish between home battery and grid only way is if battery is low. I might not be able either, to charge home battery from grid from info I have, it will auto trickle charge if battery is low. I have enquired from inverter manufacturer waiting for response. Would not seem very efficient to charge a battery from a battery as loose about 3 to 4% at each conversion. Any views?

We have IOG, an EV, home battery, and an older FIT system with PV.
The EV charges in the 6 hour IOG cheap rate, as does the home battery. We let excess PV escape during the day, even if the home battery isn’t full - it does make sense to do this; we get 15p/kWh to let it go, and charge up overnight at 7.5p. It’s better for grid balancing too I expect this way.
There’s no probs with the car/batt this way either - they charge together, so the car never charges from the home battery.
The car charger is on its own henley block connection - the other henley output has our consumer unit+fit PV and the battery CT clamp, so the battery does not know about car current anyway - if for some reason we charged outside of the IOG cheap slot it would be from the grid.

Hi Revor
Here's our wiring diagram - all connections are made as shown. Crucially note that the EV is connected via a henley block, so it's possible to clip the current clamp on independently of it.
We have two inverters - an old FIT solar one, that I've not touched as that would invalidate the 20p FIT moneys. And a new hybrid one, that has 15kWh of batteries attached - it doesn't yet have any solar connected to this one, but it soon will :-)

Many thank Rob that looks great needs studying. Will print off and go through it this evening.

<blockquote><cite>Posted By: djh</cite>Also, how is the car charger circuit fused? (or protected!)</blockquote>

Would that not be in the consumer unit top left. I assume that it is a CU

@robl. Not sure if it will make any difference to your plans but OFGEM changed the FiT rules at the end of 2021 and you are allowed to alter FIT systems without loosing your payments. Google FIT guidance for generators and see the section on alterations.

<blockquote><cite>Posted By: GreenPaddy</cite>Oct Int Go tariff - 27p (hi) and 7.5p (lo) 59p StCh [these can vary depending on region I believe</blockquote>

Yes you are right we are the highest I think, in N Wales at 65p. I have to export over 4Kwh just to pay for that.