This is a Sankey Graph of energy moving from solar panels moving through the energy grid. I took an interest in this one because with California being such a progressive state, I would assume that solar would have a bigger impact to the energy grid when in reality the numbers state other wise. Seems that natural gas and oil sill are the main strong points that carry our energy consumption. I really enjoy this way to represent data because it is interactive. These types of graphs should only be used when the audience is on an unguided tour of collected data. It allows for the audience to explore and see how data can move from one place to another. Though this data can be represented by pie charts this is an amazing visual only due to the fact that it is interactive.