NPRR387  Hydro RRS Deployment Under Frequency Relay Set Point

This Nodal Protocol Revision Request (NPRR) clarifies that for hydro Generation Resources operating in the synchronous condenser fast-response mode to provide Responsive Reserve (RRS), the initiation setting of the automatic under frequency relay setting shall not be lower than 59.80 Hz. It also includes language to address the instances when a hydro Generation Resource operating in synchronous condenser fast-response mode is triggered by an under frequency relay device without a corresponding RRS deployment by ERCOT. Additionally, this NPRR is a companion to Nodal Operating Guide Revision Request (NOGRR) 068, Hydro-Responsive Reserve, and has been prepared in coordination with ERCOT Staff. Changes to revise the use of "hydro-powered Resource" to "hydro Generation Resource" and revisions to Section 3.8 references are also proposed in this NPRR.