Electric Power Selling Price Indexes for Non-residential Customers (EPSPI)

Summary of changes

Activity on this program started: January 1981

Reference period of change - September to December 2011

Starting with the release of September 2011 reference month data, the basket of goods used to calculate the EPSPI was updated to reflect the sales revenues in 2009. The update includes two major changes: the weights of various items in the basket of goods used to calculate the index, which was based on 1992 data, will now be based on 2009 data; and the EPSPI base year (the period for which the value 100 is assigned to the index) has changed from 1997 to 2009. As a result of rebasing, CANSIM table 329-0050 has been replaced by the new table 329-0073. This new CANSIM table contains historical and current data.

Reference period of change - September to December 2001

With the release of the indexes for September to December 2001, the time reference base was changed from 1992=100 to 1997=100.