This is an interesting visual. Of course there are many players missing but it gives a useful oversight into some of the key relationships at play today. It also raises the question of how the market will evolve and mature. As with the solar market we will see consolidation, start ups fail or get bought, and even some big names suffer (Think Yingli & SunEd). The Li-on battery market is about to enter a price reduction bloodbath. Who will survive! I love this market because it is so dynamic, it provides challenges to us, and to our clients.  Acquiring top talent can be the best survival strategy, as much as the right partnerships.