I charge at home 98% of the time. When out I use Electroverse through Octopus, which, with a 10% discount works out at 69p per kWh. I was at a well know burger eatery and decided to hook up to one of their chargers, when I saw 87p per kWh. Although I only wanted an extra 30 miles, as a precaution, I unhooked and went to my usual place. £8.99 a month and 37p, is a good deal for anyone who cannot charge at home.