Abstract: A railroad network (10) having a track (12), a network energy supply (14) and a plurality of trains (16) that are connectable to the network energy supply (14) via means (20) for connecting the train (16) to the network energy supply (14) and each have an internal energy storage system (24) for receiving and storing energy originating from said train (16) or from trains (16) of the railroad network (10) and for supplying energy to said train (16) or to trains (16) of the railroad network (10). Each train (16) is able to switch from an operational state in which it is able to move along the system of rails (12) and an idle state in which it is unable to move along the system of rails (12) and vice versa. At least one of the trains (16) of the railroad network (10) is in the idle and energized state at the same time, its internal energy storage system (24) being connected to the network energy supply (14).

Abstract: A railroad network (10) having a track (12), a network energy supply (14) and a plurality of trains (16) that are connectable to the network energy supply (14) via means (20) for connecting the train (16) to the network energy supply (14) and each have an internal energy storage system (24) for receiving and storing energy originating from said train (16) or from trains (16) of the railroad network (10) and for supplying energy to said train (16) or to trains (16) of the railroad network (10). Each train (16) is able to switch from an operational state in which it is able to move along the system of rails (12) and an idle state in which it is unable to move along the system of rails (12) and vice versa. At least one of the trains (16) of the railroad network (10) is in the idle and energized state at the same time, its internal energy storage system (24) being connected to the network energy supply (14).

Abstract: In a method of enabling an invoice issuer to track, via a Web interface, a processing status of invoices, the invoice issuer is enabled to upload an invoice list with list items referring to invoices issued to an invoice recipient. The list items are correlated with invoices received from the invoice issuer. Invoice-status data including information identifying invoices referred to in the invoice list and information about their current processing status into the Web interface. The invoice-status data are accessible by the invoice issuer via the Web interface.