Actually fuel cells are pretty good now and are mostly used in industrial settings for forklifts etc. Ironically, being around car exhaust kills them because it gets into the membranes and stops them from working properly. The real issue is the high pressure hydrogen or liquid hydrogen that is required. Compressors suck at compressing it and the liquefaction cycle isn't efficient. In a power plant setting super caps are definitely necessary and they are used for all types of plants.
Actually fuel cells are pretty good now and are mostly used in industrial settings for forklifts etc. Ironically, being around car exhaust kills them because it gets into the membranes and stops them from working properly. The real issue is the high pressure hydrogen or liquid hydrogen that is required. Compressors suck at compressing it and the liquefaction cycle isn't efficient. In a power plant setting super caps are definitely necessary and they are used for all types of plants.
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