3 Market Performance Metrics
Day-Ahead Prices
Figure 2 show the daily simple average load-aggregation points (LAP) prices for each of the four default LAPs (PG&E, SCE, SDG&E, and VEA) for all hours. Table 2 below lists the binding constraints along with the associated DLAP locations and the dates when the binding constraints resulted in relatively high or low DLAP prices.
DLAP | Dates | Transmission Constraint |
---|---|---|
PGAE | June 10 | VASONA-METCALF 230 kV line, 7430_Summer_KTTLM_GATES_70_1 |
PGAE | June 21 | 7440_MetcalfImport_Tes-Metcalf ,7430_Summer_KTTLM_GATES_70_1 |
PGAE | June 22 | METCALF-METCALF-230 XFMR, MORAGA-MORAGA-115 XFMR, 7430_Summer_KTTLM_GATES_70_1 |
PGAE | June 23-24 | TRCY PMP-TESLA D-230 kV line, MORAGA-MORAGA-115 XFMR, 7430_Summer_KTTLM_GATES_70_1 |
Real-Time Price
Figure 3 show daily simple average LAP prices for all the default LAPs (PG&E, SCE, SDG&E, and VEA) for all hours respectively in FMM. Table 3 lists the binding constraints along with the associated DLAP locations and the dates when the binding constraints resulted in relatively high or low DLAP prices.
DLAP | Dates | Transmission Constraint |
---|---|---|
PGAE | June 10 | VASONA-METCALF 230 kV line, 7430_Summer_KTTLM_GATES_70_1 |
PGAE | June 21 | ML_RM12_NS, 7430_Summer_KTTLM_GATES_70_1 |
PGAE | June 22-23 | TRCY PMP-TESLA D-230 kV line , 7430_Summer_KTTLM_GATES_70_1, ML_RM12_NS |
Figure 4 below shows the daily frequency of positive price spikes and negative prices by price range for the default LAPs in the FMM. The cumulative frequency of prices above $250/MWh increased to 0.89 percent in June from 0.36 percent in May. The cumulative frequency of negative prices decreased to 5.72 percent in June from 7.55 percent in May.
Figure 5 show daily simple average LAP prices for all the default LAPs (PG&E, SCE, SDG&E, and VEA) for all hours respectively in RTD. TABLE 4 lists the binding constraints along with the associated DLAP locations and the dates when the binding constraints resulted in relatively high or low DLAP prices.
DLAP | Dates | Transmission Constraint |
---|---|---|
PGAE | June 5-6, 8, 30 | GATES1-GATES-500 kV XFMR, 6110_COI_N_S |
PGAE | June 9, 23 | GATES1-GATES-500 kV XFMR, 6110_COI_N_S, TRCY PMP-TESLA D-230 kV line |
PGAE | June 10 | MORAGA-MORAGA-115 kV XFMR , 6110_COI_N_S |
PGAE | June 21-22 | 6110_COI_N_S |
Figure 4 below shows the daily frequency of positive price spikes and negative prices by price range for the default LAPs in RTD. The cumulative frequency of prices above $250/MWh inched up to 0.70 percent in June from 0.61 percent in May. The cumulative frequency of negative prices slipped to 7.76 percent in June from 10.02 percent in May.