There would be numerous challenges to doing this. One of the big challenges would be high-current DC switching. AC currents cross zero 120 times per second, whereas DC currents are always positive. This means that avoiding and extinguishing arcs is a lot easier with AC circuits. In fact, some switches (such as triacs and thyristors) will naturally switch during the zero crossing:
That said, HVDC circuits are used for long distance transmission, especially underwater, where the increased dielectric constant would make AC circuits into an enormous capacitor.
yeah, its correct that tesla shown the AC more beneficiary for bulk amount but now when solar is going to be a major source with battery storage then, It may possible to use DC community grids in future?