Annual Electricity Supply and Disposition Survey (AELE)
Summary of changes
Activity on this program started: 1976
Reference period of change - 2016
Beginning in 2015, a large number of renewable energy companies engaged in solar, wind, hydro and other renewable technologies were added to the survey's overall target population. As a result, the number of establishments surveyed increased from 400 to 1200 establishments. Consequently, users should use caution when making historical comparisons with the data prior to 2015.
Reference period of change - 2003
As of 2003, the survey frequency has changed from quarterly to annual.
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