Grids are pretty much the best solution available because any kind of good/service that can be transported at close to light-speed benefits tremendously from ub

Grids are pretty much the best solution available because any kind of good/service that can be transported at close to light-speed benefits tremendously from ubiquitous connectivity. Smarter grids are an even better solution; batteries backing local high-variance demand combined with rapidly negotiated requests for transmission power to meet expected future demand (and then stored in the batteries) reduces (electrical) inefficiency to a minimum.