yes.
three main options if you can switch
1) Octopus go : 4 hours off peak (currently 7.5p) for EV charging. Peak is a little higher than other tariffs but also varies by location so check.
2) Intelligent Octopus : 6 hours off peak (I'm paying 7.5p also but I don't know if thats changed). You charge your car using the octopus app so you tell it how much charge you need and when by, and it sets a schedule to charge by then, but in 30 minute windows using the cheapest/cleanest energy. Main benefit here is the longer window (so you can run more of your house on cheap rate) and if your EV charge needs longer, you can often get bonus time slots which your whole house can use too.
3) Tesla Energy Plan. You need a powerwall for this and I think there is also a solar PV size limitation. But effectively you hand over the keys to your powerwall to Octopus, they use it to store energy when the prices are low, and discharge to the grid when prices are high. You don't get any benefit directly from the powerwall. In return, you get 'net metering' so you pay a little more for your electric than off peak - 12p I think? But you get that all day, so your *peak* rate is also 12p per unit. And you also get 12p for any excess energy you export to the grid. So effectively you don't care about using all that excess fully, as the grid becomes your battery and you get 100% utilistation of your solar - you export 10kwh you can then draw down 10kwh later and its cost you 0.
