40kWx£0.24=£9.60, pluss the £8.99 is £18.59. if you can access some of the cheaper AC posts, 40ish pence a kW, you could charge for about the same price as no subscription costs
You are right Shaun!
After watching the guys video again its seems he is basing over 4 weeks (40 x 4 x 0.24 + 8.99), which he didn’t make clear IMO.