NRC Authorizes Vogtle Unit 3 Fuel Loading and Operation

May 11th, 2022

PRC-019-2 addresses the reliability issue of miscoordination between generator capability, control systems, and protection functions. However, PRC-019-2 was developed with a bias toward synchronous generation and does not sufficiently outline the requirements for all generation resource types. The proposed changes will address several issues identified and revise the standard to be inclusive of all types of generation resources.

More details on the PRC-019-2 changes

Reliability Standard PRC-019-2 addresses the reliability issue of miscoordination between generator capability, control systems, and protection functions. However, this standard was developed with a bias toward synchronous generation and does not sufficiently outline the requirements for all generation resource types. Summary of expected changes:

  • The purpose statement of the standard requires modification to be inclusive of all generation resource types.
  • While this class of resources are currently included in the applicability of PRC-019-2, additional clarity is needed in specifying the aspects of dispersed power producing resources that should be coordinated.
  • Address issues within PRC-019-2 regarding synchronous generation that need to be corrected or clarified to remove ambiguity.
  • Develop language that is relevant to all generation resource types. Additionally, these changes will include modifications to the purpose statement, the applicability, and requirements.
  • Consideration of modifications to Inclusion I4 of the Bulk Electric System (BES) definition and the associated diagrams in the BES Reference Document.
  • Augment the “Applicability – Facilities” and “Applicability-Functional Entities” section in addition to PRC-019 reliability standard to address (non-generation) transmission-connected dynamic reactive resources.
  • Modify Requirements (including applicable attachments) as needed, to ensure they continue to address the additional Facilities.
  • Define new Glossary Terms for all or some of the transmission-connected dynamic reactive devices furthermore.