Challenges and necessities of vulnerability assessment for electricity infrastructures

Many studies and definitions of vulnerability have been published considering multiple aspects collectively which resulted in ambiguities in practical use. Therefore, a clear classification for vulnerability assessment isolating different dimensions of the origins of vulnerability is proposed in this paper. Under the framework, focuses can be brought on a specific dimension for a better understanding of where the system vulnerability arises. A generic pattern of system vulnerabilities, especially operational vulnerabilities, can be subsequently developed for its mitigation.