What is customer specific billing and usage data?
In considering your options with customer choice in Illinois, you may want to obtain additional information about your past billing and usage of electricity. ComEd will supply you with up to 24 months of historical billing and usage data. Two types of data are available: Summary Data. to 24 months of historical billing and usage data, by account, consisting of total kilowatts, kilowatt-hours, billing demand, and dollar amounts. This data is available for all non-residential metered accounts. Interval Data. Up to 24 months of half-hour demand data for accounts with recording-type meters.