A method of installing a power distribution system in a facility includes acts of: obtaining a power distribution unit including at least one rack mounted power distribution unit, the power distribution unit including an electrical connection having an electrical bus configured to directly connect to a riser of a power busway; installing the power busway from a terminus located at the output of the UPS to the electrical connection at the power distribution unit; and directly connecting the power busway to the output of the UPS with a busbar-to-busbar connection between the output of the UPS and the terminus of the busway.