I have posted a comment in the previous blog update about this issue – unfortunately last I heard was that they are unable to support E10 even on an E7 tariff. They had previously told me for definite that they could supply but later went back on this and refunded £100 for the inconvenience. I see recently someone has posted that they successfully switched to SP earlier this year – so it seems the company still haven’t got their act together and are perhaps giving mixed advice. My best suggestion if you are still unsure and want to clarify is to call the company directly and ask the question – however based on my own experiences I’ve happily moved on and am now very happy with Bulb energy personally (have posted below). Good luck!