Intersolar is more commercial and Large scale solar than the residential solar. As more solar is being put on the grid, it becomes necessary to add storage with solar. The solar output, the grid and the battery are instrumented. The storage acts to smothe out the ups and downs of the solar when clouds float by. It won't be long storage will be required to go in with solar as part of a project. Lithium battery based storage can act fast enough to dynamically smoothe out the output and allow time for other generation to ramp up or down over 15 or 20 minute time periods. He is probably trying to get Electrovaya's name out among the large solar business peope. Battery charge/discharge cycles become very important along with safety in this application. Cost is always important.