National Control Center

Bulk electric system reliability becomes an increasingly important topic in the changing electric power environment driven by the restructured and open access paradigm that creates greater uncertainties due to unbundled electric system with heavy system utilizations, market conditions, asset conditions, intermittent generations such as wind and solar energy, etc. This presentation aims at providing a fundameental concept of power system reliability evaluation of bulk electric system and introducing a system well-being analysis approach that is a complementary way of incorporating deterministic engineering judgments into a probabilistic analysis framework.