Common use of Zonal LBMP Calculation Method Clause in Contracts

Zonal LBMP Calculation Method. The computation described in Section 17.1.1 of this Attachment B is at the bus level. An eleven (11) zone model will be used for the LBMP billing related to Loads. The LBMP for a zone will be a Load weighted average of the Load bus LBMPs in the Load Zone. The Load weights which will sum to unity will be calculated from the load bus MW distribution. Each component of the LBMP for a zone will be calculated as a Load weighted average of the Load bus LBMP components in the zone. The LBMP for a zone j can be written as: where: = LBMP for zone j, is the Marginal Losses Component of the LBMP for zone j; is the Congestion Component of the LBMP for zone j; n = number of Load buses in zone j for which LBMPs are calculated; and Load weighting factor for bus i. The NYISO also calculates and posts zonal LBMP for four (4) external zones for informational purposes only. Settlements for External Transactions are determined using the Proxy Generator Bus LBMP. Each external zonal LBMP is equal to the LBMP of the Proxy Generator Bus associated with that external zone. The table below identifies which Proxy Generator Bus LBMP is used to determine each of the posted external zonal LBMPs. External Zone External Zone PTID Proxy Generator Bus Proxy Generator Bus PTID HQ 61844 HQ_GEN_WHEEL 23651 NPX 61845 N.E._GEN_SANDY_POND 24062 OH 61846 O.H._GEN_BRUCE 24063 PJM 61847 PJM_GEN_KEYSTONE 24065 Consistent with the ISO Services Tariff, LBMPs at Proxy Generator Buses are determined using calculated bus prices as described in this Section 17.1.

Zonal LBMP Calculation Method. The computation described in Section 17.1.1 of this Attachment B is at the bus level. An eleven (11) zone model will be used for the LBMP billing related to Loads. The LBMP for a zone will be a Load weighted average of the Load bus LBMPs in the Load Zone. The Load weights which will sum to unity will be calculated from the load bus MW distribution. Each component of the LBMP for a zone will be calculated as a Load weighted average of the Load bus LBMP components in the zone. The LBMP for a zone j can be written as: where: = LBMP for zone j, is the Marginal Losses Component of the LBMP for zone j; is the Congestion Component of the LBMP for zone j; n = number of Load buses in zone j for which LBMPs are calculated; and Load weighting factor for bus i. The NYISO also calculates and posts zonal LBMP for four (4) external zones for informational purposes only. Settlements for External Transactions are determined using the Proxy Generator Bus LBMP. Each external zonal LBMP is equal to the LBMP of the Proxy Generator Bus associated with that external zone. The table below identifies which Proxy Generator Bus LBMP is used to determine each of the posted external zonal LBMPs. External Zone External Zone PTID Proxy Generator Bus Proxy Generator Bus PTID HQ 61844 HQ_GEN_WHEEL 23651 NPX 61845 N.E._GEN_SANDY_POND 24062 OH 61846 O.H._GEN_BRUCE 24063 PJM X.X._XXX_XXXXX_XXXX 00000 XX 00000 X.X._XXX_XXXXX 00000 XXX 61847 PJM_GEN_KEYSTONE 24065 Consistent with the ISO Services Tariff, LBMPs at Proxy Generator Buses are determined using calculated bus prices as described in this Section 17.1.

Zonal LBMP Calculation Method. The computation described in Section 17.1.1 of this Attachment B is at the bus level. An eleven (11) zone model will be used for the LBMP billing related to Loads. The LBMP for a zone will be a Load weighted average of the Load bus LBMPs in the Load Zone. The Load weights which will sum to unity will be calculated from the load bus MW distribution. Each component of the LBMP for a zone will be calculated as a Load weighted average of the Load bus LBMP components in the zone. The LBMP for a zone j can be written as: = + , + , where: = LBMP for zone j, , = ∑ =1 is the Marginal Losses Component of the LBMP for zone j; , = ∑ is the Congestion Component of the LBMP for zone j; n = number of Load buses in zone j for which LBMPs are calculated; and = Load weighting factor for bus i. The NYISO also calculates and posts zonal LBMP for four (4) external zones for informational purposes only. Settlements for External Transactions are determined using the Proxy Generator Bus LBMP. Each external zonal LBMP is equal to the LBMP of the Proxy Generator Bus associated with that external zone. The table below identifies which Proxy Generator Bus LBMP is used to determine each of the posted external zonal LBMPs. External Zone External Zone PTID Proxy Generator Bus Proxy Generator Bus PTID HQ 61844 HQ_GEN_WHEEL 23651 NPX 61845 N.E._GEN_SANDY_POND 24062 OH 61846 O.H._GEN_BRUCE 24063 PJM X.X._XXX_XXXXX_XXX X 00000 XX 00000 X.X._XXX_XXXXX 00000 XXX 61847 PJM_GEN_KEYSTONE 24065 Consistent with the ISO Services Tariff, LBMPs at Proxy Generator Buses are determined using calculated bus prices as described in this Section 17.1.

Zonal LBMP Calculation Method. The computation described in Section 17.1.1 of this Attachment B is at the bus level. An eleven (11) zone model will be used for the LBMP billing related to Loads. The LBMP for a zone will be a Load weighted average of the Load bus LBMPs in the Load Zone. The Load weights which will sum to unity will be calculated from the load bus MW distribution. Each component of the LBMP for a zone will be calculated as a Load weighted average of the Load bus LBMP components in the zone. The LBMP for a zone j can be written as: where: = LBMP for zone j, is the Marginal Losses Component of the LBMP for zone j; is the Congestion Component of the LBMP for zone j; n = number of Load buses in zone j for which LBMPs are calculated; and Load weighting factor for bus i. The NYISO also calculates and posts zonal LBMP for four (4) external zones for informational purposes only. Settlements for External Transactions are determined using the Proxy Generator Bus LBMP. Each external zonal LBMP is equal to the LBMP of the Proxy Generator Bus associated with that external zone. The table below identifies which Proxy Generator Bus LBMP is used to determine each of the posted external zonal LBMPs. External Zone External Zone PTID Proxy Generator Bus Proxy Generator Bus PTID HQ 61844 HQ_GEN_WHEEL 23651 NPX 61845 N.E._GEN_SANDY_POND N.E._GEN_SANDY_PON D 24062 OH 61846 O.H._GEN_BRUCE 24063 PJM 61847 PJM_GEN_KEYSTONE 24065 Consistent with the ISO Services Tariff, LBMPs at Proxy Generator Buses are determined using calculated bus prices as described in this Section 17.1.