I’ll explain where I’m going with this.

As I understand it, Octopus are offering an EV charging tariff that allows Octopus to take control of the charging period, the customer tells Octopus that for example that they want the car to be 80% charged at 8.00 am tomorrow, Octopus will charge as and when it suits them as the supplier to achieve the outcome the customer wants.

https://octopus.energy/intelligent-octopus/

Currently it only works with a Tesla, the car controls the charging so the EVSE is simply set to fast charge, this means the car needs to connect to the customers WiFi whilst parked and connected to the EVSE or have a Hotspot within the car to allow the charging to be controlled by Octopus.

The next step is for the EVSE to be put in control of the charging rather than the car and to allow the EVSE to be controlled by Octopus, which is what Octopus are collaborating with Wallbox to do.

So presumably all EVSE will need an Internet connection to access the best tariffs, not just a connection to report usage.

This is okay if a reliable WiFi connection is available, but I’m guessing hard wired connections will often be required with a data cable running to a completely different location to the electrical intake and consumer unit, with the risk of breaching zones with different electrical earthing arrangements at either end of the data cable.

I’ll explain where I’m going with this.

As I understand it, Octopus are offering an EV charging tariff that allows Octopus to take control of the charging period, the customer tells Octopus that for example that they want the car to be 80% charged at 8.00 am tomorrow, Octopus will charge as and when it suits them as the supplier to achieve the outcome the customer wants.

https://octopus.energy/intelligent-octopus/

Currently it only works with a Tesla, the car controls the charging so the EVSE is simply set to fast charge, this means the car needs to connect to the customers WiFi whilst parked and connected to the EVSE or have a Hotspot within the car to allow the charging to be controlled by Octopus.

The next step is for the EVSE to be put in control of the charging rather than the car and to allow the EVSE to be controlled by Octopus, which is what Octopus are collaborating with Wallbox to do.

So presumably all EVSE will need an Internet connection to access the best tariffs, not just a connection to report usage.

This is okay if a reliable WiFi connection is available, but I’m guessing hard wired connections will often be required with a data cable running to a completely different location to the electrical intake and consumer unit, with the risk of breaching zones with different electrical earthing arrangements at either end of the data cable.

Sparkingchip said:

So presumably all EVSE will need an Internet connection to access the best tariffs, not just a connection to report usage.

This is okay if a reliable WiFi connection is available, but I’m guessing hard wired connections will often be required with a data cable running to a completely different location to the electrical intake and consumer unit, with the risk of breaching zones with different electrical earthing arrangements at either end of the data cable.

Yes ... and integrate with a home Energy Management System with solar, battery storage etc., is also being muted.

Wired connection is probably the way to go ... but it may not be Ethernet depending what system you put in.

A lot of energy management/load curtailment seems to be done through EIA/RS 485 (Modbus / CANbus). But from a wiring perspective, there's not a lot of difference (485 cabling often now using cat 5 cable, plus RJ45s with the EIA/TIA 568B pinout).