Issues with Hydrogen Fuel Cells
Though the process of the cell appears elementary, the issues surrounding its delay are concrete. Hydrogen safety is an important issue in the development of this technology because of its high energy content and possibility for large scale incident. This can be referenced as the incident with the Hindenburg disaster as well as the hydrogen bomb.
Secure methods are needed for its transport, but these precautions are observed for all current hydrogen transfer and there is no viable reason that this would not be the case when distribution hits a larger scale. Storage is also a mentioned problem when it comes to the hydrogen fuel cell because the gas itself is of low density and it is difficult to compress a sufficient amount into a space needed for consumer products like cars.
Another key point here is that since hydrogen does not just appear naturally on Earth it must be extracted using technology with energy consumption itself. This would require energy stations that would have to power the extraction process without using more energy resources than are being produced. This is an issue that can be done by using natural energy sources in key areas. Examples of this would be large wind-energy collectors in Colorado or solar panels in Nevada as prime areas to house plants for hydrogen production.
A specific use of this idea would be in the Solar Hydrogen Cycle. Photovoltaic panels are used to collect solar energy which is then used to power an electrolyzer. This device is used to split water into its sub-parts, hydrogen and water. The water is discharged and the hydrogen is stored for transfer.
Storage, which is one of the most persistent issues, is also being attacked by companies with stake in hydrogen. It has been addressed with new technologies such as nanostructured carbons. These can store large amounts of hydrogen at near to room temperature.