Nuclear unit productivity analysis, 1976 update

This report extends operating experience assessments through January 1, 1977, and provides further elaboration on the components of performance data. The productivity of a specific generation unit appears amenable to quantitative evaluation by conventional reliability analysis methods modified to reflect the maintenance and maturity effects that characterize the electrical generation industry. An extensive discrimination analysis is required to account for now-modified design features as well as changes in operational and regulatory environments. The performance of this discrimination study to provide data for design and operational guidance is a primary purpose of this report. The report includes data appropriate for estimating nuclear unit availability and capacity factor (with associated probability values), the causes of nonproductivity and the prospects for anticipating and ameliorating outages. An outline of performance ''maturity'' development is also included