What source fuel are you envisioning will be used in the home fuel cell? I can picture a water, sewer, and gas pipe to a house but I can't see how you get around needing that gas pipe. Unless you propose large on-site storage tanks for each home?
with nano nickle, this can be one method with future improvements, maybe with a small outside electrical source to assist when needed. I can also see gas pipes being used to supply large scale electrolysis produced H2 from all the excess power that will be around from unneeded electricity generators, nuclear plants