On the ICE, June 2015 day-ahead peak electricity prices in CAISO, represented by SP15, and ERCOT, represented by North 345kV, began to increase as of June 4, 2015. CAISO SP15 prices rose from 32 USD/MWh on June 4 to 42 USD/MWh on June 16, before settling at 45 USD/MWh on June 22.
Prices at PJM and NYISO both followed a similar downward trend this month. Prices at PJM APS Zone and NYISO Zone A began the month at 44 and 41 USD/MWh respectively, before dropping to 40 and 36 USD/MWh on June 16, ending the observation period at 39 and 34 USD/MWh, respectively.
ERCOT prices remained relatively flat throughout the first three weeks of the June, averaging at 28 USD/MWh.
Data Sources: ICE