We are looking for some volunteers to take part in the Alpha and Beta testing phases of the Octopus integration. You can express your interest here: https://docs.google.com/forms/d/e/1FAIp ... H-jsSm626Q
This is not a commitment and is just an expression of interest at this stage. Fox are not collecting any personal information, we will simply pass on your expression of interest to Octopus who will then reach out to you directly. Thank you.
I wanted to share a post by Craig from Fox ESS for those not apart of the facebook group.
How is tis going? Has there been progress.
Thanks
Thanks
Is this integration also happening for Intelligent Octopus (the standard EV charging tariff)?
If so, do you register interest in the same way?
If so, do you register interest in the same way?
HI Is there any update on this please?
I received an invite to join the beta today.
We’re excited to invite you to be one of the first to test our EV+Inverter integration
We are currently testing this and would like to invite you to connect with your FoxESS inverter, for this test we will be putting you on Intelligent Octopus Flux as your export tariff and you will continue on Intelligent Octopus Go as your electricity import tariff.
Intelligent Octopus Flux export is a tariff designed for solar and battery users that allows us to intelligently manage a compatible inverter to charge during green, off-peak times and export surplus energy back to the grid during peak periods for maximum return.
If you are happy to proceed with this please follow the steps below
Here’s how to pair your device with us:
Open the Octopus Energy app
Tap the 'Devices' tab and then tap 'Add device'
Select 'Battery' (this may be referred to as inverter) & find your tech from the dropdown
Press 'Agree and connect' - you'll be redirected to an FoxESS login page
Login to your account
Success, your device should now be connected!
You'll see a message prompting you to onboard to Intelligent Octopus Flux. As we're in testing, you do not need to do this - we'll make sure the product is applied correctly for you.
We’re excited to invite you to be one of the first to test our EV+Inverter integration
We are currently testing this and would like to invite you to connect with your FoxESS inverter, for this test we will be putting you on Intelligent Octopus Flux as your export tariff and you will continue on Intelligent Octopus Go as your electricity import tariff.
Intelligent Octopus Flux export is a tariff designed for solar and battery users that allows us to intelligently manage a compatible inverter to charge during green, off-peak times and export surplus energy back to the grid during peak periods for maximum return.
If you are happy to proceed with this please follow the steps below
Here’s how to pair your device with us:
Open the Octopus Energy app
Tap the 'Devices' tab and then tap 'Add device'
Select 'Battery' (this may be referred to as inverter) & find your tech from the dropdown
Press 'Agree and connect' - you'll be redirected to an FoxESS login page
Login to your account
Success, your device should now be connected!
You'll see a message prompting you to onboard to Intelligent Octopus Flux. As we're in testing, you do not need to do this - we'll make sure the product is applied correctly for you.
Keep us posted. When I try to add a device, I only have a heat pump option.nvenables200 wrote: ↑Wed Jan 21, 2026 4:26 pm I received an invite to join the beta today.
We’re excited to invite you to be one of the first to test our EV+Inverter integration
We are currently testing this and would like to invite you to connect with your FoxESS inverter, for this test we will be putting you on Intelligent Octopus Flux as your export tariff and you will continue on Intelligent Octopus Go as your electricity import tariff.
Intelligent Octopus Flux export is a tariff designed for solar and battery users that allows us to intelligently manage a compatible inverter to charge during green, off-peak times and export surplus energy back to the grid during peak periods for maximum return.
If you are happy to proceed with this please follow the steps below
Here’s how to pair your device with us:
Open the Octopus Energy app
Tap the 'Devices' tab and then tap 'Add device'
Select 'Battery' (this may be referred to as inverter) & find your tech from the dropdown
Press 'Agree and connect' - you'll be redirected to an FoxESS login page
Login to your account
Success, your device should now be connected!
You'll see a message prompting you to onboard to Intelligent Octopus Flux. As we're in testing, you do not need to do this - we'll make sure the product is applied correctly for you.
Currently, invite only to this new tariff.
Community Admin / FoxESS Elite Professional
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2 x KH Hybird Inverters (Parallel Mode)
1 x H1 Gen1 (Solar Mode)
1 x H1 Gen2 WL (Testing, Modbus and API development)
24 x HV2600 (62.4kWh)
32 x 490w across 4 arrays
2 x EV's (Tesla & Mercedes)
Heatpump & Low Carbon Housebuild
2 x KH Hybird Inverters (Parallel Mode)
1 x H1 Gen1 (Solar Mode)
1 x H1 Gen2 WL (Testing, Modbus and API development)
24 x HV2600 (62.4kWh)
32 x 490w across 4 arrays
2 x EV's (Tesla & Mercedes)
Heatpump & Low Carbon Housebuild
@Will I just tried to set up the tariff and it says I need to upgrade
Device List H1-G2 Upgrade required,
Looking through the app it is not showing any upgrade available, versions:
Master 1.31, Slave 1.03, Manager 1.46
Can an upgrade be pushed remotely?
Device List H1-G2 Upgrade required,
Looking through the app it is not showing any upgrade available, versions:
Master 1.31, Slave 1.03, Manager 1.46
Can an upgrade be pushed remotely?
I received an invite to join the beta testing with Octopus in January. My system went live on the 24th.
I've been posting my experiences on the Octopus Smart Energy Forum here.
I would be very interested in comparing notes with anyone else who's on this trial.
I've been posting my experiences on the Octopus Smart Energy Forum here.
I would be very interested in comparing notes with anyone else who's on this trial.
What version of firmware do you have? I think I am still waiting for an update to mine to join. I have opened a Fox Support ticket but had no update on this for a week.
I sent an e-mail to service.uk@fox-ess.com on the evening of Thursday 22nd Jan with a screenshot of the message I got when trying to add the device via the octopus app (the screenshot included my inverter serial number and that address).
Nice chap called Tristan contacted me via email on Friday the 23rd to say my firmware had been updated to the latest standard. I was then able to complete the sign up process via the Octopus app, set to ‘Self Use’ and turn off my HA automations.
HA modbus integration currently reports:
Version Manger 1.69
Version Master 1.51
… and after I found that I can now deploy remote updates myself on demand via the FoxESS cloud android app:
Version Slave 1.04
Have a poke around the ESS app. Maybe your firmware is already new enough to support you rolling out an update to these versions yourself?
Nice chap called Tristan contacted me via email on Friday the 23rd to say my firmware had been updated to the latest standard. I was then able to complete the sign up process via the Octopus app, set to ‘Self Use’ and turn off my HA automations.
HA modbus integration currently reports:
Version Manger 1.69
Version Master 1.51
… and after I found that I can now deploy remote updates myself on demand via the FoxESS cloud android app:
Version Slave 1.04
Have a poke around the ESS app. Maybe your firmware is already new enough to support you rolling out an update to these versions yourself?