What few people note, is that during electrolysis of water, besides hydrogen you also produce oxygen. Oxygen is useful in gasification of organic waste product

What few people note, is that during electrolysis of water, besides hydrogen you also produce oxygen. Oxygen is useful in gasification of organic waste products (corn stover, bigasse, and other woody biomass) to produce syngas that is not diluted by atmospheric nitrogen (a problem with using oxygen from atmospheric air). So not only are you producing hydrogen, which can later be converted into electricity or motive force (in a combustion engine), but also another form of fuel which can help to even out the energy needs when solar is not available. Up-cycling and recycling materials is a great use of excess electricity in my opinion.