It’s the start of a new Semester, and at the beginning of my Power class I spend the first lecture reviewing where I think we stand on the Energy supply to the United States. This has changed a bit since last year and so I thought I would run through some of the changes that I made to my lecture this year, in the same way as I did last September. Since the greatest impact is likely to come from the changing sources of supply that the US has had to go to, with the change in levels of production, I began with this slide: