According to some embodiments, a railcar comprises an underframe and at least one hopper. The hopper is configured to transport a lading material. A longitudinal sliding gate assembly is coupled to the hopper and comprises: a pair of side walls coupled to a pair of end walls forming a discharge opening; a pair of tracks, one coupled to each end wall; a sliding gate slidably coupled to the pair of tracks; and a threaded drive screw coupled to the sliding gate and to the pair of side walls. Rotation of the threaded drive screw in a first direction moves the sliding gate along the tracks to an open position that permits the lading material to discharge, and rotation of the threaded drive screw in an opposite direction moves the sliding gate along the tracks to a closed position that restricts the lading material from discharging.

Provided herein is an energy delivery system for transporting electrical energy from an electrical energy generation facility to an electrical energy consumption facility via rail. The energy delivery system can comprise a train comprising at least one rail car loaded with at least one battery system. The battery system can comprise an energy transfer interface for receiving energy from the energy generation facility when the train is located at the energy generation facility for charging batteries of the battery system and for transferring energy stored by the battery system to the energy consumption facility when the train is located at the energy consumption facility. The energy transfer interface can be configured to receive energy from a corresponding energy transfer interface mounted to a crane system of the energy generation facility and to transfer energy to a corresponding energy transfer interface mounted to a crane system of the energy consumption facility.

Provided herein is an energy delivery system for transporting electrical energy from an electrical energy generation facility to an electrical energy consumption facility via rail. The energy delivery system can comprise a train comprising at least one rail car loaded with at least one battery system. The battery system can comprise an energy transfer interface for receiving energy from the energy generation facility when the train is located at the energy generation facility for charging batteries of the battery system and for transferring energy stored by the battery system to the energy consumption facility when the train is located at the energy consumption facility. The energy transfer interface can be configured to receive energy from a corresponding energy transfer interface mounted to a crane system of the energy generation facility and to transfer energy to a corresponding energy transfer interface mounted to a crane system of the energy consumption facility.

According to some embodiments, a railcar comprises an underframe and at least one hopper. The hopper is configured to transport a lading material. A longitudinal sliding gate assembly is coupled to the hopper and comprises: a pair of side walls coupled to a pair of end walls forming a discharge opening; a pair of tracks, one coupled to each end wall; a sliding gate slidably coupled to the pair of tracks; and a threaded drive screw coupled to the sliding gate and to the pair of side walls. Rotation of the threaded drive screw in a first direction moves the sliding gate along the tracks to an open position that permits the lading material to discharge, and rotation of the threaded drive screw in an opposite direction moves the sliding gate along the tracks to a closed position that restricts the lading material from discharging.

Open top gondola railcars and closure assemblies for cleanout openings of those railcars are disclosed. In some embodiments, the closure assembly includes a closure member sized to be received in a cleanout opening and to span a substantial portion of the cleanout opening to define at least one gap between a closure perimeter and a floor perimeter. The closure assembly additionally includes a sealing member fixedly attached to, or formed with, the closure member. The sealing member spans between the floor perimeter and the closure perimeter to cover the at least one gap. The closure assembly further includes a tethering member having opposed first and second end portions. The first end portion is fixedly attached to the closure member and the second end portion is attached to one of the floor or a cross bearer of the open top gondola railcar.