Any Hydrogen technology managed by Corporate oil will only be a means to entrap people with hydrogen in the same manner as gasoline. For now solar and solar charging an EV is something that is practical today. On the grid it costs you an equivalent of 80 cents per gallon of gasoline. Batteries are better but some of the best were suppressed at the time the EV1 came out.
An electric car is 35% - 97% cleaner than a comparable gas car, including the pollution generated by the electric power plant. The 35% number applies to states using a lot of "dirty" power, such as coal-fired plants. The 97% number applies to states like California that use a lot of "clean" power, including hydro, nuclear, wind, and solar.
Also, there is ongoing research to make flywheel energy storage systems that can replace conventional chemical batteries for mobile applications, such as for electric vehicles. Proposed flywheel systems would eliminate many of the disadvantages of existing battery power systems (less info)