An AC trunk cable assembly and a system for coupling AC power to a power grid. In one embodiment, the AC trunk cable assembly comprises an AC trunk cable that (i) comprises at least two wires for carrying AC voltage phases, and (ii) does not have a ground wire; and a plurality of AC trunk splice connectors, spaced along the AC trunk cable, for coupling to a plurality of inverters in a one-to-one-correspondence, wherein each AC trunk splice connector of the plurality of AC trunk splice connectors comprises at least two phase-line conductors for coupling AC power from the corresponding inverter to the at least two wires of the AC trunk cable.