Calculation Unit Description Interval Source Variable Frequency VSSVARAMT q, r $ The payment to QSE for 4 / Hour Calculated Yes Voltage Support Service var Amount per QSE per Generation Resource - q the VSS provided by Generation Resource for the 15-minute Settlement Interval. r, VSSVARPR The price for instructed Mvar beyond a Generation Resource’s 4 / Hour No Voltage Support Service var - URL currently is $2.65/Mvarh (based on $50.00/installed kvar). VSSVARLAG q, r Mvarh The instructed portion of 4 / Hour Yes Voltage Support Service var Lagging per QSE per Generation Resource - the Reactive Power above the Generation Resource’s lagging URL for Generation Resource r represented by QSE for the 15-minute Settlement Interval. q, VSSVARLEAD q, r Mvarh - The instructed portion of the 4 / Hour Yes Voltage Support Service var Leading per QSE per Generation Resource Reactive Power below the Generation Resource’s leading URL for Generation Resource represented r by QSE for the 15-minute Settlement Interval. q, VSSVARIOL q, r Mvar 4 / Hour Yes Voltage Support Service var Instructed Output per QSE per Generation Resource—The instructed Reactive Power output level of Generation Resource represented by QSE lagging r q, Reactive Power if positive and leading Reactive Power if negative, for the 15-minute Settlement Interval. RTVAR q, r netted Reactive Energy measured for Generation 4 / Hour Yes Real-Time var per QSE per Resource—The Resource represented by QSE for the 15-minute Settlement Interval. r q, URLLAG q, r Mvar Unit Reactive Limit for lagging Reactive 4 / Hour Yes Unit Reactive Limit Lagging per QSE per Resource—The Power of the Generation Resource represented by QSE as determined in accordance with these r q Protocols. Its value is positive. URLLEAD q, r Mvar Unit Reactive Limit for leading Reactive 4 / Hour Yes Unit Reactive Leading per QSE per Resource—The Power of the Generation Resource represented by QSE as determined in accordance with these r q Protocols. Its value is negative. VSSEAMT q, r $ lost opportunity 4 / Hour Yes Voltage Support Service Energy Amount per QSE per Generation Resource—The payment to QSE for ERCOT-directed VSS from Generation Resource g for the 15-minute q Settlement Interval.
Calculation Variable Unit Description Interval Frequency Source VSSVARAMT q, r $ Voltage Support Service var Amount per QSE per Generation Resource - The payment to QSE q for the VSS provided by Generation Resource r, for the 15-minute Settlement Interval. 4 / Hour Calculated Yes VSSVARPR Voltage Support Service var - The price for instructed Mvar beyond a Generation Resource’s URL currently is $2.65/Mvarh (based on $50.00/installed kvar). 4 / Hour No VSSVARLAG q, r Mvarh Voltage Support Service var Lagging per QSE per Generation Resource - The instructed portion of the Reactive Power above the Generation Resource’s lagging URL for Generation Resource r represented by QSE q, for the 15-minute Settlement Interval. 4 / Hour Yes VSSVARLEAD q, r Mvarh Voltage Support Service var Leading per QSE per Generation Resource - The instructed portion of the Reactive Power below the Generation Resource’s leading URL for Generation Resource r represented by QSE q, for the 15-minute Settlement Interval. 4 / Hour Yes VSSVARIOL q, r Mvar Voltage Support Service var Instructed Output per QSE per Generation Resource—The instructed Reactive Power output level of Generation Resource r represented by QSE q, lagging Reactive Power if positive and leading Reactive Power if negative, for the 15-minute Settlement Interval. 4 / Hour Yes RTVAR q, r Real-Time var per QSE per Resource—The netted Reactive Energy measured for Generation Resource r represented by QSE q, for the 15-minute Settlement Interval. 4 / Hour Yes URLLAG q, r Mvar Unit Reactive Limit Lagging per QSE per Resource—The Unit Reactive Limit for lagging Reactive Power of the Generation Resource r represented by QSE q as determined in accordance with these Protocols. Its value is positive. 4 / Hour Yes URLLEAD q, r Mvar Unit Reactive Leading per QSE per Resource—The Unit Reactive Limit for leading Reactive Power of the Generation Resource r represented by QSE q as determined in accordance with these Protocols. Its value is negative. 4 / Hour Yes VSSEAMT q, r $ Voltage Support Service Energy Amount per QSE per Generation Resource—The lost opportunity payment to QSE q for ERCOT-directed VSS from Generation Resource g for the 15-minute Settlement Interval. 4 / Hour Yes
Nodal_Settlements_Handbook.docx