Developing state of the art aerospace systems has become a challenge due to the increasing electrical and electronic content. To achieve profitability goals while satisfying customers’ demands for efficiency and mission capability, aerospace companies can modernize their development and manufacturing programs. OEMs and their suppliers can use a model-based engineering approach that supports the digital thread and enriches the system digital twin with Capital. The combination of the digital twin and the digital thread enables those responsible for each lifecycle stage to access insights on the electrical system engineering designs and manufacturing process. This speeds the development process and reduces errors. They also enable simulation of the electrical system’s impact on platform performance, integration and safety.