Changes to the Electrical Power Selling Price Index (EPSPI) beginning with the September 2011 reference month data

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. This update is to better reflect important changes in the consumption of electricity by non-residential customers in Canada.

The update, which occurs periodically, is designed to ensure the EPSPI reliability for two key purposes: a measure of inflation for the distribution of electricity; and a tool for analysis of price formation and behaviour as well as for contract escalation.

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 As a result of rebasing, CANSIM table 329-0050 has been replaced by the new table 329-0073.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. A vector number concordance table between the new and old tables is available below.

Although the EPSPI base year has changed to 2009=100 in the new CANSIM table, the rates of change measured for periods prior to 2009 remain unchanged for both of the 1997=100 and the 2009=100 tables, barring rounding. From 2009 onwards, the same lower-level or elemental price movements are used, but updated 2009 weights will be used to aggregate these movements. Therefore, at the lower level, the movements will be the same, but the aggregate movements will change due to the updated weights. This means that with the implementation of the new 2009 weights, the index movements from January 2009 to August 2011 were revised.

EPSPI information and data are available in the monthly publication (62-011-X) and on CANSIM, Statistics Canada’s information database.

For more information, or to enquire about the concepts, methods or data quality of this release, contact Client Services (toll-free 1-888-951-4550; 613-951-4550; fax: 613-951-3117;, Producer Prices Division.

Vector number concordance table
Old Vector Id
New Vector Id
v3834002 v54321858
v3834003 v54321859
v3834015 v54321871
v3834004 v54321860
v3834016 v54321872
v3834005 v54321861
v3834017 v54321873
v3834018 v54321874
v3834006 v54321862
v3834019 v54321875
v3834007 v54321863
v3834020 v54321876
v3834008 v54321864
v3834021 v54321877
v3834009 v54321865
v3834022 v54321878
v3834010 v54321866
v3834023 v54321879
v3834011 v54321867
v3834024 v54321880
v3834012 v54321868
v3834025 v54321881
v3834013 v54321869
v3834026 v54321882
v3834014 v54321870
v3834027 v54321883
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