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Introduction
Published in Armand A. Lakner, Ronald T. Anderson, Reliability Engineering for Nuclear and Other High Technology Systems, 2017
In addition to the NPRDS data function, the National Electric Research Council (NERC) is responsible for the operation of the ‘Generating Availability Data System’ (GADS), formerly the EEI Data System. GADS is a source of summary unit performance data on all types of electric power generating equipment, e.g. nuclear, fossil, hydro, combustion, and combined cycle units.
Maintenance
Published in S. Can Gülen, Gas Turbine Combined Cycle Power Plants, 2019
Reliability, availability and other key RAM metrics are used by the NERC, which maintains the Generating Availability Data System (GADS) and by the ORAP® (operational reliability analysis program) system offered by Strategic Power Systems, Inc. (SPS).
Highly Available Nuclear Power in a Microgrid Configuration for the ORNL Distribution System
Published in Nuclear Technology, 2022
The base case analysis evaluates two main sources of power to the ORNL distribution system: the TVA bulk transmission system and the 12-NPM plant. Sensitivity 2 provides an alternate estimate of the availability of non-NuScale power sources by evaluating the power sources explicitly identified as supplying the ORNL distribution system, including the Kingston Fossil Plant, the Bull Run Fossil Plant, the Fort Loudoun Dam, and the Wolf Creek Dam, instead of the TVA bulk transmission system. The availability of these power sources is based on the North American Electric Reliability Council Generating Availability Data System data from 2012 to 2016 (Ref. 15), with representative availabilities shown in Table III. As with the TVA bulk transmission system, these power sources could simultaneously be brought offline by an extreme weather event. Due to the geographic diversity and distance of these power sources to ORNL, an extreme event that impacts the TVA bulk transmission grid and these four power sources simultaneously is expected to be similarly infrequent, which is much smaller than the unavailability of each power source. Therefore, a common cause (CC) extreme weather event is not modeled in this sensitivity.
Versatile Economic Risk Tool
Published in Nuclear Technology, 2022
J. Miller, S. Ercanbrack, C. L. Pope
The generic reliability data incorporated into the VERT structure come from the pc-GAR. The pc-GAR is a program developed by the North American Electric Reliability Corporation (NERC). The pc-GAR provides access to the Generating Availability Data System (GADS), which contains operating data from generating units across North America. Users can filter these data through a variety of criteria, including unit types and time periods. The pc-GAR program provides unavailability information on SSCs throughout NPPs. The program considers unplanned and planned derating and derates caused by failures, as well as derates caused by maintenance, inspection, or other planned activities.27