Answer:
Hydrogen fuel cells have several potential disadvantages, including:
High cost: Hydrogen fuel cells are currently more expensive to produce and install than traditional fossil fuel systems, which can make them less attractive for wide-scale use.
Limited infrastructure: There are currently very few hydrogen fuel stations available, which can make it difficult for people to use hydrogen fuel cells as their primary source of transportation.
Safety concerns: Hydrogen is a highly flammable gas, and there have been concerns about the safety of hydrogen fuel cells in the event of an accident or leak.
Limited range: Hydrogen fuel cells typically have a shorter range than gasoline-powered vehicles, which can be a disadvantage for long-distance travel.
Environmental concerns: While hydrogen fuel cells do not produce any harmful emissions, the process of producing hydrogen fuel can have negative environmental impacts if it relies on fossil fuels or non-renewable energy sources.
Overall, while hydrogen fuel cells have the potential to be a clean and efficient source of energy, they also have some limitations that need to be considered.