NPRR389  Modification of Voltage Support Requirements to Address Existing Non-Exempt WGRs

This Nodal Protocol Revision Request (NPRR) clearly defines the Reactive Power capability requirements for Wind-powered Generation Resources (WGRs) that commenced operation on or after February 17, 2004, and have a signed Standard Generation Interconnection Agreement (SGIA) on or before December 1, 2009 (Existing Non-Exempt WGRs). These Existing Non-Exempt WGRs will fall into two categories: (1) Those whose current design allows them to meet the Reactive Power capability requirement described in paragraph (3) of Section 3.15. In these cases, the Reactive Power profile is depicted graphically as a rectangle. (2) Those whose current design does not allow them to meet the Reactive Power capability requirement described in paragraph (3) of Section 3.15. These WGRs must conduct engineering studies using the Summer/Fall 2010 Voltage Profiles to determine their actual Reactive Power capability and must, at a minimum, provide Reactive Power proportional to the real power output (a Reactive Power profile depicted graphically as a triangle). This NPRR further requires that all new Generation Resources shall have an engineering study, or demonstrate through performance testing, to show compliance with the Reactive Power capability requirements of paragraph (3) of Section 3.15 before beginning commercial operations. This NPRR also modifies the definition of "Automatic Voltage Regulator (AVR)" to better address the practical differences in Resource technology in providing this capability.