United States Nuclear Regulatory Commission - Protecting People and the Environment

Reactor Operational Experience Results and Databases

System Notices

2016 results are now available.

This area contains updated results for a variety of previously published studies conducted by the office of Nuclear Regulatory Research.

The numerous component and system reliability and trending study updates of industry performance will now be performed and reported every other year instead of yearly, as in the past. The current update of these studies uses industry data through calendar year 2016. The next update will use data through calendar year 2018 and will be available in 2020. The loss of offsite power and initiating event updates will still be performed and made available yearly.

What’s New in the 2016 Update
Summary of Significant Trends for 2016
Overview and Reference

Parameter Estimates

Trends and Insights

Supplemental Information

Databases and Programs

Page Last Reviewed/Updated Tuesday, May 8, 2018