On the ICE, electricity day-ahead prices decreased in observed North American ISOs by the third week of December when compared to the previous month. From November 2014 to December 2014, electricity day-ahead prices decreased in CAISO SP-15, ERCOT (Texas), and PJM by 9% to $44.62, 20% to $27.72 USD/MWh, and 11% to $41.27 respectively. Warmer temperatures in the Northeast could be responsible for reducing demand and, consequently, pushing the prices lower compared to the rest of the country. Comparing day-ahead pricing of November 2013 with November 2014, CAISO SP-15, PJM, and ERCOT, increased 14%, 23%, and 22%, respectively.
Data Sources: ICE