What are the advantages of using hydrogen as energy source?

Answer 1

Hydrogen is not a fuel. It is a way of storing or transporting energy.

Advantages:

• Emits only water vapour, assuming there is no leakage of hydrogen gas
• It can store up to 3x as much energy as conventional natural gas.

Disadvantages:

• Leakage of H gas (see above) will have detrimental impacts on the stratosphere (California Institute of Technology)
• Production of hydrogen gas currently relies on natural gas and electrolysis and to replace all the vehicles would require 10x as much as currently is used
• Storage is really tough because hydrogen is such a low density gas
• Distribution and infrastructure needs to be refurbished to cope with hydrogen, which can metals by making them brittle
• Use in fuel cells requires catalysts, which usually require a component metal (most often platinum). Platinum is extremely rare, expensive and environmentally unsound to produce.

Answer 2

Hydrogen is a combustible gas that is the byproduct of electrolysis (the breaking apart of water molecules). One advantage hydrogen has over other gases or fuels used for energy is that it is an abundant element. Hydrogen can be made with the use of solar cells and once burned, has no negative effect on the environment (as long as it doesn't catch something on fire).

Answer 3

Hydrogen contains no carbon, so when it is burned there is no CO2 produced.

Advantages

Hydrogen can be totally non-polluting if produced from renewable resources

Hydrogen can be economically competitive with gasoline or diesel.

Hydrogen is safer than gasoline, diesel, or natural gas.

Hydrogen can help prevent the depletion of fossil fuel reserves.

Hydrogen can be produced in any country.

Hydrogen can be produced on-site and does not need elaborate transportation systems

The water that is produced in the exhaust is actually drinkable (in theory, but the system may become dirty and the water has no minerals). It is very pure.

Answer 4

It, in and of itself, is nonpolluting. The production of hydrogen in sufficient quantity to use as a power source, however, is potentially polluting. In addition the amount of energy required to produce hydrogen is greater than the amount of energy released by oxidizing it into water. Fuel cells using hydrocarbons to produce hydrogen have the carbon remaining as a waste byproduct, and actually increase reliance on fossil fuels. Electrolysis of water relies on a source of electricity to separate the molecules into hydrogen and oxygen, thus requiring another energy source, whether renewable or non renewable sources. Those power plants may or may not produce pollution. As it stands presently, hydrogen is not a viable solution for replacing fossil fuels.

Answer 5

Principally that when burned with oxygen, the only byproduct is water vapour.

2H2 + O2 = 2H2O whereas with hydrocarbons you get carbon dioxide.

Answer 6

its a very flamible gas so it would be hard to contain for universal distrobution safely

Answer 7

The only waste product is water vapor.