A welding system, comprising: - a plurality of power cables configured to provide an alternating current power from a source of power to a plurality of welding power supply units (52, 54, 56); - a first welding power supply unit (52, 54, 56) of the plurality of welding power supply units (52, 54, 56) configured to receive the AC power via one of the power cables, wherein the first welding power supply unit (52, 54, 56) comprises a first communication component (62, 64, 66) configured to couple to the one of the power cables, and wherein the first communication component (62, 64, 66) is configured to receive data from welding system components and to convert them to a first set of data that may be transmitted via the one of the power cables; and - a second welding power supply unit (52, 54, 56) configured to receive the AC power via another of the power cables, wherein the second welding power supply unit (52, 54, 56) comprises a second communication component (62, 64, 66) configured to couple to the one of the power cables, and wherein the second communication component is configured to receive data from welding system components and to convert them to a second set of data that may be transmitted via the one of the power cables; the second communication component (62, 64, 66) is configured to receive the first set of data via the one of the power cables, and that the first communication component (62, 64, 66) is configured to receive the second set of data via the one of the power cables to enable communication between the communication components (62, 64, 66) of the first and second welding power supply unit (52, 54, 56), characterized in that at least one of the welding power supply units (52, 54, 56) is communicatively coupled to a cloud-based computing system via the communication component (62, 64, 66), and that the communication component (62, 64, 66) of said at least one welding power supply unit (52, 54, 56) receives and aggregates said converted first and second sets of data via the power cables and transmits them to the cloud-based computing system via a different network connection than the one or more power lines. - a plurality of power cables configured to provide an alternating current power from a source of power to a plurality of welding power supply units (52, 54, 56); - a first welding power supply unit (52, 54, 56) of the plurality of welding power supply units (52, 54, 56) configured to receive the AC power via one of the power cables, wherein the first welding power supply unit (52, 54, 56) comprises a first communication component (62, 64, 66) configured to couple to the one of the power cables, and wherein the first communication component (62, 64, 66) is configured to receive data from welding system components and to convert them to a first set of data that may be transmitted via the one of the power cables; and - a second welding power supply unit (52, 54, 56) configured to receive the AC power via another of the power cables, wherein the second welding power supply unit (52, 54, 56) comprises a second communication component (62, 64, 66) configured to couple to the one of the power cables, and wherein the second communication component is configured to receive data from welding system components and to convert them to a second set of data that may be transmitted via the one of the power cables; the second communication component (62, 64, 66) is configured to receive the first set of data via the one of the power cables, and that the first communication component (62, 64, 66) is configured to receive the second set of data via the one of the power cables to enable communication between the communication components (62, 64, 66) of the first and second welding power supply unit (52, 54, 56), characterized in that at least one of the welding power supply units (52, 54, 56) is communicatively coupled to a cloud-based computing system via the communication component (62, 64, 66), and that the communication component (62, 64, 66) of said at least one welding power supply unit (52, 54, 56) receives and aggregates said converted first and second sets of data via the power cables and transmits them to the cloud-based computing system via a different network connection than the one or more power lines. the second communication component (62, 64, 66) is configured to receive the first set of data via the one of the power cables, and that the first communication component (62, 64, 66) is configured to receive the second set of data via the one of the power cables to enable communication between the communication components (62, 64, 66) of the first and second welding power supply unit (52, 54, 56), characterized in that at least one of the welding power supply units (52, 54, 56) is communicatively coupled to a cloud-based computing system via the communication component (62, 64, 66), and that the communication component (62, 64, 66) of said at least one welding power supply unit (52, 54, 56) receives and aggregates said converted first and second sets of data via the power cables and transmits them to the cloud-based computing system via a different network connection than the one or more power lines.