I've written a paper on how a 125 PowerPack deployment for what is basically energy arbitrage might look. I'd love any feedback. This is kind of an attempt to take the earlier post by deonb to a new level. Coming up with a 'model' to value it. I am an Industrial Engineer, not Electrical, so I'd love to get some nerds looking at this thing to make it better. See attached (.pdf). You can also email me directly at jbarbour3 at gatech.edu