The Principal Engineer must have extensive experience with modeling and planning the bulk electric power system; exhibit strong technical skills to apply to long-range load forecasting, testing and planning; and leverage company and industry experience to develop model improvements to represent equipment such as transmission lines, transformers, generators, circuit breakers, FACTS devices, Inverter-Based Resources (IBR), battery storage, etc. Interface with ISO-New England, area transmission owners, and Eversource departments [such as: UG and OH Transmission Line engineering, Substation Engineering, Protection & Controls Engineering, Asset Management, Compliance, Operations, Substation Technical, Distributed Energy Resource (DER), and other departments] to understand and document electric system compliance, needs, and challenges to enable reliable future growth.