I am also awaiting delivery of a ZS in the next 3/4 weeks. How easy was it to get switched over to Octopus and what rates are they offering (I think I have seen 40p peak and 10/12p off peak)
Switching over was really easy (my previous fixed price tariff had just expired, so I wasn’t tied into any contract with my last provider). When you first switch across, they initially put you onto their standard fixed rate tariff which was only marginally cheaper than the default tariff that my previous provider put me on when my fixed rate tariff expired. Once you are set up with Octopus and you have sent them your starting meter reading, they can then move you onto their Octopus Go tariff, which is the one which gives you cheaper electricity from 0030-0430 in the morning. I plan to set up my charger to charge my car during these hours.
Assuming that you are not locked into a contract with your existing provide, switching is really easy. All you do is go onto the Octopus website and sign up to them and they deal with the switch over and tell your existing provider that you are leaving. You then get an email from your existing provider telling you what your final bill is and that is it. I think it took about three days for the switch to be complete and I didn’t loose my electricity supply or anything like that.
You don’t need a referral code to switch across but (as I mentioned above) if you do, you get £50 off your next bill, as does the person who referred you. I’ll PM you a referral code if you want to use it, you just add it were it asks for it (apparently we can’t post them publicly here). Edited to add: Referral code now in my signature below.
Hope that helps.
Edited to add:
The Octopus standard tariff they put you on when you first switch across is 34.23p per KWh at all times and a 42.77p daily charge. The Octopus Go tariff which you move to once you are set up is 43.37p per KWh from 0430 in the morning to half past midnight and then 12p per KWh from 0030-0430 and a 42.86p daily charge. Depending on your usage you may find their standard tariff cheaper but my calculations (based on the mileage I plan to do) indicates that the Go tariff will be a bit cheaper for me.
If you have a compatible charger (I don’t), you can go onto the Intelligent Octopus tariff which gives you electricity at 43.37p per KWh between 0530-2330 and then 10p per KWh between 2330-0530. Apparently they are adding chargers to the compatibility list and if/when they add mine, I will move to this tariff. There doesn‘t seem to be a penalty or charge for moving between tariffs.
NB, the prices above are as at today. I don’t have a feel yet for how they fluctuate with the cost of energy (presumably about the same as with other providers).