Hydrogen Fuel Cells
1. Whether ALL the production methods, associated with hydrogen fuel cells, focus ‘only’ on developing renewable energy sources (solar/wind) for hydrogen production; and no more rely on fossil fuels?
If so, whether, the produced electricity from renewable energy sources would remain as a constant, given the random appearance of wind (and sometimes solar as well)?
Whether the type of energy source use; and the daily weather conditions would play a crucial role in dictitating the cost and efficiency?
If so, whether, low-temperature electrolyzers (PEM) would remain to be efficient, although, it requires only an electric DC source for water decomposition, given the fact that the electrolyzers consume a significant amount of electricity as an input, on top of the equipment cost?
Whether the elevated costs associated with the polymer exchange membrane, noble metal electro-catalysts and the elevated over-potentials for water-splitting will be taken care by PEM water-electrolyzer?
2. How about the production process of hydrogen fuel cell itself?
What does it emit?
3. On top of hydrogen-storage remaining associated with an inherent loss of energy, irrespective of, whether it is stored as a gas or as a liquid, how easy would it remain to build a plant onsite to generate hydrogen gas that avoids corrosion of metals?
4. Whether hydrogen fuel cells will be able to keep a constant voltage level during the whole discharge cycle; and in turn, would it maintain consistent performance until they require recharging?
5. For hydrogen fuel cells, is there an alternative technique than steam methane reforming that require a large quantum of water towards mass production?
6. How about the required space for storage tanks and electrolyzers?
And, won’t it impact agricultural activities?
7. Is there an advanced technology for the hydrogen fuel cells that could be built in the absence of requiring rare materials that elevate its costs than IC Engines or battery-powered electric cars?
8. Does the safe storage of hydrogen involve an elevated cost as well as increased space requirement (as it requires high-pressure tanks or cryogenic systems)?
9. Transportation of hydrogen is going to be very challenging (hydrogen leakage rate should be the least) and costly with the energy density of hydrogen per unit volume being relatively low (requiring a large storage volume for the same energy)?
10. How about hydrogen refueling infrastructure?
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