There are very few truly new ideas in the modern world, and hydrogen power is no exception. Also, when used as a vehicle fuel, hydrogen is considered "clean," as the by-product of its combustion is mostly water vapor. For one thing, a fuel cell requires pure oxygen, which is as expensive and energy-intensive to produce as pure hydrogen, if not more so. Be that as it may, the evolution of batteries, while having essentially killed off hydrogen as a viable option for the foreseeable future, somewhat paradoxically also suggests that hydrogen technology may indeed still have a future, if one that may be much more distant than hydrogen proponents wish. Unlike nuclear power, hydrogen power has the fundamental advantages of being potentially limitless and completely clean, if its many technical challenges can be overcome.

Source: Manila Times June 05, 2021 16:18 UTC