Renewable Energy News has an article that lists the 15 solar trends for 2016. #15 last on the list "15) Investment in storage technologies will accelerate, and start up storage companies will multiply, though only a fraction will successfully commercialize their technologies – deep pockets and the ability to absorb losses will be necessary for success."

http://www.renewableenergyworld.com/articles/2016/01/fifteen-things-to-watch-out-for-in-2016.html?cmpid=renewablesolar01122016&eid=291113142&bid=1274182

It looks like Electrovaya is commercializing. Here is hoping for a successful build out this year.