ABSTRACT
Alternate energy becomes more popular but major questions remain to be answered on which fuel or fuels will emerge and to what extent alternative sources will replace gasoline as the main product of crude oil. Many relate hydrogen fuel use, which involves a chemical change, with hydrogen weapons, which involves a thermonuclear reaction. Hydrogen is different than other energy options like oil, coal, nuclear or solar. Solar technology is renewable, modular and generally pollution free, but it has some disadvantages, such as not always being available at the right time. Hydrogen is known as a secondary energy carrier, instead of a primary energy source. Electricity is required for many hydrogen production methods and the cost of this electricity tends to make hydrogen more expensive than the fuels it would replace. Hydrogen can be stored and transported as a compressed gas, a cryogenic liquid or in solids.
