Lots of talk about Batteries, but after reading the AGM notes its obvious the Fuel Cell market is in play with ZEN.

"According to the United States Geological Survey, fuel cells have the potential to consume as much graphite as all other uses combined. "

Lots of info in the below links. Will be interesting to see where ZEN emerges in this market and with who.

http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/2012_market_report.pdf

http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/state_of_the_states_2013.pdf