I just had Octopus install Ohme Charger - They are discrete, and works very well with Intelligent Octopus - it is "very smart" in the way it schedules and even varies the power automatically - So it doesn't just pump our 7KW max all the time.
Also Octopus install a Surge Protector worth £150 for free as they are your electricity supplier.
So when you add it all up it is great value for money.
They Octopus engineers were amazing - super professional and very smart job.