The particular technological challenge I want to discuss with this question is the distribution of a novel energy carrier via extant water distribution systems. Potential energy carriers include ultra-high-capacity solid materials (e.g. complex metal hydrides, metal organic frameworks), carbon materials (e.g. activated carbon, carbon nanotubes), natural or synthetic adsorbers (e.g. zeolites, porous polymers), hydrogen encapsulation in water, or a solid substrate hydrogen carrier. So my ultimate aim is not to address or advocate for any particular feasible solution, but to make a contribution to shaping a future infrastructure system which is environmentally friendly, sustainable, multi-functional, manageable and flexible. It aims to encourage scientific community to consider this radically alternative approach.
What do you think about this radical conception of a combined household energy and water delivery infrastructure which might be made possible by emerging technological developments and advances that have yet to become reality.