Aggregate Supply and Demand PX Bid Curves
The Power Exchange runs a day-ahead and hour-ahead market for energy utilizing a double-auction format. This page contains data on the aggregated bid curves for the day-ahead market. The data are the (horizontal) aggregation of the hourly individual bid curves into the supply side and demand side of the day-ahead market. The intersection of the aggregate supply and demand curves determines the unconstrained market clearing price and the unconstrained market clearing quantity for each hour. These data are released by the PX on a 3 month lag.
1998
April 1, 1998 to July 5, 1998 (3.6MB)
July 6, 1998 to October 4, 1998 (3.9MB)
October 5, 1998 to January 3, 1999 (4.2MB)
1999
April 5, 1999 to July 4, 1999 (4.4 MB)
July 5, 1999 to October 3, 1999 (6.2 MB)
October 4, 1999 to December 30, 1999 (5 MB)*
2000
January 1, 2000 to March 31, 2000 (4.7 MB)
April 1,2000 to June 30, 2000 (4.6 MB)
October 1999 data updated 4/6/2000 by PX to correct for errors from 10/14/99-10/24/99
*Note: Data for November 7, 1999 were missing in the original PX data release. We will update the data when it becomes available.
If you have any comments, please send email to: uceidata@ucei.org
University of California Energy Institute / August 16, 2000