Hydrogen Transportation Wins Over Growing Reliance on Oil (H2 GROW) Act - Amends the Internal Revenue Code to allow a tax credit for 50% of the cost of acquiring and installing qualified hydrogen-powered vehicle refueling property (fuel service stations for the retail sale of hydrogen fuel to the general public). Terminates such credit after 2013.
Excludes income from the sale of hydrogen fuel sold at retail for use in a hydrogen vehicle from taxpayer gross income. Terminates such tax exclusion after 2014.