Clean hydrogen begins with electricity and then loses a vast amount of energy in the conversion process. Also it’s extremely pressurized and/or cryogenic, and one of the most difficult molecules to store. If there was a process for converting electricity to ethanol and burning it that was more efficient than batteries, we’d be using it instead of batteries. Other sources like corn-based ethanol have their own problems that have been pretty extensively covered elsewhere. In fact, all of this stuff has been covered elsewhere and great answers are available with a search.