A method implemented on a computer system, the computer system for electrical load life-cycle management and analysis of a complex vehicle, the method comprising: storing, in a database, electrical system configuration data and electrical system requirements of a complex vehicle that is in service, the electrical system configuration data comprising electrical system organization data, electrical system hierarchy data, electrical system connection data, circuit diagrams, electrical system structure data, and part service life data; receiving a configuration change to the electrical system configuration data from an operator of an electrical system for the complex vehicle via a communication interface, the configuration change comprising one of adding or deleting electrical components from the electrical system configuration data; determining electrical system performance characteristics of the vehicle based on the electrical system configuration data of the vehicle by simulating electrical system performance characteristics based on the electrical system configuration data, the electrical system performance characteristics comprising a load distribution analysis and a flight phase load analysis; and comparing the electrical system performance characteristics to the electrical system requirements to provide compliance information for the vehicle; updating the electrical system configuration data to provide updated electrical system configuration data of the vehicle; determining updated electrical system performance characteristics of the vehicle based on the updated electrical system configuration data; and comparing the updated electrical system performance characteristics to the electrical system requirements to provide the compliance information for the vehicle to the operator of the electrical system via the communication interface. storing, in a database, electrical system configuration data and electrical system requirements of a complex vehicle that is in service, the electrical system configuration data comprising electrical system organization data, electrical system hierarchy data, electrical system connection data, circuit diagrams, electrical system structure data, and part service life data; receiving a configuration change to the electrical system configuration data from an operator of an electrical system for the complex vehicle via a communication interface, the configuration change comprising one of adding or deleting electrical components from the electrical system configuration data; determining electrical system performance characteristics of the vehicle based on the electrical system configuration data of the vehicle by simulating electrical system performance characteristics based on the electrical system configuration data, the electrical system performance characteristics comprising a load distribution analysis and a flight phase load analysis; and comparing the electrical system performance characteristics to the electrical system requirements to provide compliance information for the vehicle; updating the electrical system configuration data to provide updated electrical system configuration data of the vehicle; determining updated electrical system performance characteristics of the vehicle based on the updated electrical system configuration data; and comparing the updated electrical system performance characteristics to the electrical system requirements to provide the compliance information for the vehicle to the operator of the electrical system via the communication interface.