Scheduled to begin limited retail marketing in summer 2008 the Honda FCX Clarity is a hydrogen powered fuel cell vehicle boasts an absolutely zero emissions capability. (well.. except a little water). The FCX Clarity utilizes Honda’s V Flow stack in combination with a new compact and efficient lithium ion battery pack and a single hydrogen storage tank to power the vehicle’s electric drive motor. The fuel cell stack operates as the vehicle’s main power source. Hydrogen combines with atmospheric oxygen in the fuel cell stack, where chemical energy from the reaction is converted into electric power used to propel the vehicle. Additional energy captured through regenerative braking and deceleration is stored in the lithium ion battery pack, and used to supplement power from the fuel cell, when needed.