This report reviews system conditions and performance of the ISO’s day-ahead and real-time markets from mid-August to Sept. 7, 2020. This report was prepared by the ISO’s Department of Market Monitoring (DMM) which serves as the independent market monitor for the ISO and Western Energy Imbalance Markets. A prior report, prepared by the ISO, California Public Utilities Commission and California Energy Commission, focuses on the root causes of the load shedding events occurring on August 14 and 15. This report provides additional analysis and some recommendations based on DMM’s own independent analysis. This report also covers periods through September 7, during which the ISO energy demand was forecast to be higher than August 14
and 15, but further load curtailments were avoided due to a combination of different market conditions and steps taken by the ISO and other entities.