On the ICE, day-ahead peak electricity prices have remained flat in February 2015 in ERCOT North 345 kV and CAISO SP15. NYISO, as represented by Zone A prices and PJM represented by APS Zone, illustrates an upward trend of prices as a result of a drop in temperatures in the East. While CAISO and ERCOT prices remained stable throughout the month, from $34 and $28 USD/MWh, respectively, at the beginning of the month, PJM peak power rose from $43 USD/MWh at the beginning of the month to $88 USD/MWh on February 20, with prices peaking at $50 in the middle of the month. Similarly, NYISO Zone A also experienced a sharp increase in price, rising from $43 USD/MWh at the beginning of the month to $86 USD/MWh on February 20.
A sharp decrease in temperature in New York and Chicago between February 9 and February 20 could be responsible for the spike in prices compared to the other observed cities.
Data Sources: ICE