Almost all of the 40 million tons of hydrogen used worldwide today comes from natural gas through a process called reforming. Natural gas, made to react with steam, produces hydrogen and carbon dioxide. The pure hydrogen is then used: to make ammonia for fertilizer, in refineries to make reformulated gasoline, and in the chemical, food and metals industries.
Hydrogen as a Transportation Fuel
Hydrogen is being used in many vehicles in Europe as a transportation fuel. The vehicles are powered by hydrogen fuel cells. Hydrogen is also used in the aerospace industry as rocket fuel. It is also used to make methane fuel.
Hydrogen as Portable Power
Hydrogen is considered a carrier energy source carrying energy from one place to another. Most pure hydrogen made today is used on site and not transported. Hydrogen is at times shipped in existing natural gas lines or liquefied and trucked to its destination, but porting hydrogen is expensive because it is difficult to contain.
Hydrogen as a Stationary Power
Energy is needed to turn the turbines at existing electric power plants. Hydrogen power plants can sit beside electric plants to be the source of power that generates electricity. Hydrogen is an inexpensive and clean alternative to coal and oil.
Hydrogen as a Gas Supply
Hydrogen is currently used in the manufacture of food, hydrogen peroxide, fertilizer, it is used in welding and serves other industrial needs. Hydrogen is also chemically used to make anti freeze, and is used in the separation of metals from their oxides (impurities). Hydrogen gas is also used to hydrogenate liquid oils in the food industry.
More ways for Hydrogen to be used and to generate revenue as pertaining to the SMW business plan - here
Hydrogen uses - http://www-formal.stanford.edu/jmc/progress/hydrogen.html
Transportation Industry - http://en.wikipedia.org/wiki/Hydrogen_car
Hydrogen Production - http://en.wikipedia.org/wiki/Hydrogen_production
Electrolysis - Wikipedia - http://en.wikipedia.org/wiki/Electrolysis
General FAQ - http://fuelcellsworks.com/JustthebasicsonHydrogen.html