Summer average wholesale electricity prices in western U.S. were highest since 2008
Summer average wholesale electricity prices in western U.S. were highest since 2008 As a result of record-high temperatures and fuel supply constraints this summer, wholesale electricity prices in the western United States reached their highest levels since 2008. In the area served by the California Independent System Operator (CAISO), peak-period electricity prices in July averaged $101 per megawatthour (MWh), the highest monthly average since the current day-ahead market began trading in April 2009. Peak-period electricity prices at the Palo Verde trading hub in Arizona and at the Mid-Columbia hub in the Pacific Northwest averaged $89/MWh and $72/MWh, respectively, in July. Prices in each area also remained relatively high through August