GizmoMac I use Octopus energy to charge my Ev. I’m on the Agile tariff which varies every 30mins and on average is 7p a Kw hr with a daily standing charge of 20p it makes cheap motoring even cheaper. Their Ev tariff is Octopus Go and its overnight charging for 5p per Kw with normal rates outside of overnight.
Use my link below if you do decide to switch it puts £50 into your energy account.
https://share.octopus.energy/warm-snow-738