A method, system, and computer usable program product for discovering an equipment power connection relationship between an equipment and an electrical power outlet. A workload executing on the equipment is monitored for a period resulting in monitoring data. The Metering data associated with a first power outlet in a plurality of power outlets is searched, the metering data representing electrical power drawn from a power outlet over the period. A determination is made whether the monitoring data matches with the metering data associated with the first power outlet. If a match is determined, a relationship is identified between the equipment and the first power outlet, whereby the first power outlet is known to supply electrical power to the equipment.