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Settlement and Extracts Group June 20, 2011 Base Point Deviation – NPRR377 ERCOT Settlement & Billing Group. Base Point Deviation – NPRR377 GREDP Inputs. Base Point Deviation – NPRR377 GREDP Inputs. Calculate an over generation and under generation for each 5 minute clock interval
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Settlement and Extracts GroupJune 20, 2011Base Point Deviation – NPRR377ERCOT Settlement & Billing Group
Calculateanovergeneration and undergenerationforeach 5 minute clockinterval OGEN5M q, r, p, i, y = Max[0, (AVGTG5M q, r, p, i, y – Max[(1 + K1) * AABP5M q, r, p, i, y, AABP5M q, r, p, i, y + Q1])] K1 = 5 % Q1 = 5 MW UGEN5Mq, r, p, i ,y= Max [0, [Min ((1 - K2) * AABP5Mq, r, p, i, y, AABP5Mq, r, p, i, y - Q2) - AVGTG5M q, r, p, i, y]] K2 = 5 % Q2 = 5 MW Where: AABP5Mq, r, p, i, y = AVGBP5M q, r, p, i, y + AVGREG5M q, r, p, i, y AVGREG5M q, r, p, i, y = (AVGREGUP5Mq, r, p, i, y - AVGREGDN5Mq, r, p, i, y) y = 5-minute clock interval Base Point Deviation – NPRR377 GREDP Inputs
Once the over and under volume for each 5 minutes is calculated, then apply the price for the 15 minute settlement interval. Over Generation: BPDAMT q, r, p, i = Max (PR1, RTSPP p, i) * (OGEN q, r, p, i *1/12) OGEN q, r, p, i = (OGEN5M q, r, p, i, y) Under Generation: BPDAMT q, r, p, i= -1 * Min (PR2, RTSPPp,i) * Min (1, KP) * (UGENq, r, p, i * 1/12) UGENq, r, p ,i = (UGEN5Mq, r, p, i, y) Base Point Deviation – NPRR377 GREDP Inputs
[ab1]Some of the cons seemed the same, maybe my notes weren’t good • Base Point Charges for IRR are upgraded to calculate on a 5 minute clock interval basis • Please note: • Charges will be assessed for each 5 minute clock interval where the resource received a flag signifying a Base Point below HDL for all SCED intervals within the five-minute clock interval • KIRR is changed to 5% Base Point Deviation – NPRR377 changes for IRR