IPPR: Set up an Energy Company for London

Mildly confused of SW Surrey, here. I spotted this post from Edie which suggests that the IPPR is calling upon the next London mayor to set up an energy company performing a supplier role. However, looking at what I think is the original here, it seems that it's more a distribution company that the IPPR think is required. That makes more sense - having the energy equivalent of TfL to ensure the infrastructure is there to enable a true distributed energy solution be available to London. Edie notes that two cities - Nottingham and Bristol - have both recently set up energy companies. These are very clearly supply companies with a social target of providing lowest cost energy to consumers.