Branch Circuit Monitoring (BCM) system provides real-time views of electrical capacity and power usage in colocation and other data centers. Supporting real-time branch circuit monitoring at panelboard, floor PDU, remote power panel, or overhead busway, system affords visibility into entire power chain to manage data center health. For colocation data centers, BCM offers visibility into how much power customer equipment is using and helps enforce SLAs. Data is remotely or locally.