Electrical capacity management has already been implemented for Universal Serial Bus (USB) and Ethernet to prevent overloading electronics, cables, or power supplies. This highlights the need for effective and interoperable solutions for capacity management at all scales. This paper will present solutions at each of these scales, with a deeper dive into the panel capacity topic, which is the most urgent and easily solved scale. It shows results of work to demonstrate capacity management with specified loads that can be dropped or modulated to maintain compliance with limits in simulation and hardware demonstration at multiple power scales. It concludes with recommendations for regulation, utility operation, and further technology development.