Cloudscape

Rather than having each nanorobot obtain their own energy, nanorobots could energize one another by connecting to one another throughout whatever matrix they are in; on condition, that is, that they are present in sufficient density to form a kind of microscopic "mesh" of concatenated nanorobots. In this way, the energy could evenly be distributed and the collective system could work for a considerably longer time without renewal of energy; furthermore, renewal of energy could happen more easily, and could be done from an external electric source, because rather than having each nanorobot connect to it they could serially connect to it in a chain, like a nanoscale cable or series of branching cables.