This publication provides information for new plant designs as well as modifications to existing operating nuclear power plants to cope with extended station blackout. It describes a common international technical basis to be considered when establishing all the criteria for a station blackout event, and outlines critical issues which reflect the lessons learned applicable to electrical systems from the Fukushima Daiichi accident. The publication describes current plant practices and design provisions for withstanding a station blackout event already implemented at some nuclear power plants. It also provides proposals for improvement of existing plant designs to increase the robustness of the electrical power systems for contending with a station blackout event.
