I had the privilege of being invited to give a presentation at EcoBuild at the Excel, London, to Self Builders on the outlines of generating your own power at home.
As it turned out, though I thought I was going to be right on time, it ran over and I sadly needed to miss out some stuff, so apologies to anyone who attended the packed room and needed more information. You can email me at firstname.lastname@example.org for all the notes.
A kind person in the audience took a phone photo and posted to Twitter.. Thanks, I've included it here.