I don?t think Southwark are buying any electricity then selling it on, or giving it away, to anyone. I think as Penguin suggests they may be paying for the installation of charging points, or alternatively, not charging the installer for the use of lamp-posts. If Southwark was giving away electricity, free power for people to run their vehicles, there would be a legal challenge very soon. What Andy Simmons says in his tweet does imply this is what Southwark are planning but, yes, councillors do make mistakes and sometimes misunderstand the question.