Development a new generation of emergency control systems for the U.S. power grid based on a combination of new technologies, and new analytic capabilities related to recent progress in the power system reliability assessment translated into new real-time algorithms for voltage stability and transient stability. Compared to the existing configuration of the overall protection system, the proposed Coordinated Emergency Control System (CECS) will bring the following significant advantages: The CECS system will operate in real time, while its setting will be selected in near real time, will dynamically coordinate settings of the existing hierarchical protection from Zone 1 protection to SPS protection and involve additional control actions to the overall design, CECS system will adapt to changing system configuration and parameters, and the system will be more online and data-driven, and not just post event-analysis driven it will rely on new analytics.