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There are still several things to consider before the public accepts hydrogen powered vehicles. You see, the internal combustion engines are still the most popular and hydrogen fuel is just new in the market. One of the factors to be considered is Cost. Hydrogen fuel is quite costly. At present, fuel cells have prohibitive prices but because of technological advancements, the cost is slowly being lowered. Once the price of fuel cells drop to a certain level that is quite affordable for the public, only then can it be a viable substitute.
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