Good to hear that you are getting the most from your cheap tariff, have you time shifted other electrical items to come on in the same 4 hour slot?
I was just about to suggest the very same thing !.
Hi Simon, this is brilliant advice from
@Jomarkh .
Anything appliances that is fitted with the facility to conduct a delayed / timed use, or can be fitted safely with a suitably rated timer control, then use it.
Most modern appliances like washing machines / tumble driers / bread makers etc have this function.
These items are hungry to feed with electricity.
How do you heat your domestic hot water ?.
If you have a hot water storage tank, then at 5p/KWh this is WAY less expensive than heating water with even a modern gas boiler I would suggest.
We have an emission heater that has never been used to heat our water for years.
Always used the gas boiler.
But after the huge 54% increase in electricity prices in April 22 and another similar sized increase due in Oct / Nov 22.
I quickly installed a purpose built timer control on the emersion heater and stoped using gas boiler to heat our domestic hot water.
Oh …… Word of caution

first ( if you intend to do this ) just check what your main DNO cut out fuse is ratted at prior.
Depending on the age of your home, it could be anything from 60 to 100 Amps.
Easy to check, go to where your electricity meter / consumer unit ( fuse box ) is located.
Where the main incoming supply cables enters your home, you will see a large single main fuse holder, it is likely to have a lead anti tamper proof seal fitted by the DNO.
Don’t touch it !.
It should have a sticker attached to the side of the fuse, if it’s 100Amps you are golden.
If it is rated at 60 Amps, you will have to do a bit of “Man Maths” first before you charge your car AND use a lot of the other items we have spoken about above.
Your wall box will be pulling around 7 Kw’s from any SOC less that about 96%.
An emersion heater / washing machine / tumble drier will be pulling about 3 ( ish ) Kw’s also EACH !.
This is over what a 60 Amp fuse is take really and could over load it.
The charger and one of the above is fine.
An electric shower rated at around 11 Kw’s is a massive consumer of energy, but taking your shower at midnight is taking the whole thing just a little bit too far ?.
Enjoy your car and consider the option to slide safely some of your usage, into that cheaper “Off Peak” tariff.
It is important because you get nothing for nothing with a time of day tariff.
Like others ( myself ) your day rate will be expensive, to compensate for that 4 - 5 hours of cheaper off peak rate.
Try to safely maximise all of those precious cheaper hours my friend !.