The ZEMA graph above shows day-ahead peak electricity prices between November 02–30, 2015, as reported by ICE. The red line represents CAISO SP15, the green line represents PJM APS Zone, the purple line represents ERCOT North 345KV, and the blue line representsNYSO Zone A. Units are in USD/MMh.
On the ICE, November 2015 day-ahead peak electricity prices in NYISO, represented by Zone A, and ERCOT, represented by North 345kV, had the highest fluctuations among all observed regions. Prices at ERCOT began with $24 USD/MWh until November 06, 2015, down with 8.3% the later weeks reporting at $ 22 USD/MWh on November 30. NYISO Zone A prices fell from 33 USD/MWh on November 02 to 28 USD/MWh on November 08 and finally settling back at 33 USD/MWh on November 30. According to ERCOT, it expects to meet the anticipated peak demand of 57,400 MW through the availability of 79,000 MW of generation resources for most of Texas.
Prices at PJM started with 36 USD/MWh on November 02, followed by a downward trend for the next 13 days falling to 32 USD/MWh on November 18, and settling back at 32 USD/MWh on November 30. Prices at CAISO SP15 began the month at 30 USD/MWh and went up to 32 USD/MWh till November 18, down by 6.5% at 30 USD/MWh November 30.
Comparing to the prices reported last year in November 2014, ICE data indicates that all prices saw a decline, with the greatest declines being seen in PJM APS Zone, which experienced a 46.51% decrease, and CAISO SP15, which fell by 35.41%.
Data Sources: ICE