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ONLY THE COMED DATA ROOM IS UPDATED ON A REGULAR BASIS. THE REMAINDER OF THIS WEB SITE IS NO LONGER UPDATED FOR ANY PURPOSE AND REMAINS AS IT WAS WHEN LAST UPDATED ON JULY 26, 2007. The ComEd Data Room will be updated monthly, on or before the 26th of each month.
 From this page, you can download a variety of historical data, such as hourly load, peak load, and switching data.
These data items are provided by Ameren for informational purposes only. Ameren has compiled the data in good faith from sources believed by Ameren to be reliable but do not warrant the accuracy of the data. Further, there is no representation that this data is indicative of future outcomes. By use of these data, prospective suppliers as well as other parties agree to assume all risks associated therewith. Without limitation of the foregoing, prospective suppliers and other parties should carefully assess the uncertainty associated with future load obligations, including variations in customer usage and migration to Retail Electric Suppliers.
Please note that the last data update was completed in June '07. No further updates are planned at this time.
Starting in January 2007 Ameren data have been extracted by a new system. In addition, these values were produced using more accurate customer counts than were the December 2006 values. Thus, while these new 2007 data series are expected to be more accurate, some of them exhibit substantial differences from 2006. In addition, beginning on January 1, 2007, QF Load will be directly netted out of BGS-LRTP Load.
Last Updated: Wednesday, May 26, 2010
Complete Data Set
Data Description
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Data Description
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Date Posted
Date Through |
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Aggregate
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The applicable Ameren Illinois Utility’s hourly load associated with all customers, including customers who have elected to receive service from a Retail Electric Supplier not including wholesale customer load (other than such RES served load), grossed up to include appropriate distribution system losses.
Total Eligible BGS Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the Total Eligible BGS Hourly Load.
Total Eligible BGS Monthly Peak Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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The applicable Ameren Illinois Utility’s hourly load associated with all customers not including wholesale load and less all load served by Retail Electric Suppliers, grossed up to include appropriate distribution system losses.
Total BGS Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the Total BGS Hourly Load.
Total BGS Monthly Peak Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Number and percentage of customers and their associated electricity usage, that have switched to a Retail Electric Supplier and/or returned to an Ameren Companies’ service divided into a residential and small business group, a small commercial and industrial group (customers less than 1 MW), and a large commercial and industrial group (customers 1 MW and over) as provided by the Ameren Companies to the Illinois Commerce Commission on a monthly basis.
Switching Statistics
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Date Posted
Date Through |
2/26/2007
December 05 | 2/26/2007
December 06 | 6/26/2007
May 07 |
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Number of customers and their associated electricity usage and kW demand that are on an Ameren Companies’ service and that have switched to a Retail Electric Supplier divided into several size categories such as residential, 25 kW or less, 25 kW to 100 kW, 100 kW to 400 kW, etc.
Detailed Switching Statistics, Customer Counts, and Size Distributions
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Date Posted
Date Through |
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Basic Generation Service – Large Customer Fixed Pricing (“BGS-LFP”)
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Hourly load of all of the applicable Ameren Illinois Utility’s customers (Large Commercial and Industrial) with demand of 1 MW or over. These customers have elected to take a fixed price supply service from one of the Ameren Illinois Utilities, or have elected to take real-time pricing supply service from one of the Ameren Illinois Utilities, or have elected to receive supply service from a Retail Electric Supplier. This load data is grossed up by a loss factor to appropriately reflect distribution system losses. Please note that this data excludes the hourly load of those customers that did not pre-qualify for BGS-LFP service and therefore can not elect BGS-LFP service for the period January 1, 2007 to May 31, 2008.
Eligible BGS-LFP Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the Eligible BGS-LFP Hourly Load.
Eligible BGS-LFP Monthly Peak Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Hourly load of all of the applicable Ameren Illinois Utility’s BGS-LFP Customers, generally described as those customers (Large Commercial and Industrial) with demand of 1 MW or over who take supply service from one of the Ameren Illinois Utilities who have not elected to take real-time pricing supply service. This load data is grossed up by a loss factor to appropriately reflect distribution system losses. Please note that this data excludes the hourly load of those customers, as appropriate, that did not pre-qualify for BGS-LFP service and therefore can not elect BGS-LFP service for the period January 1, 2007 to May 31, 2008.
BGS-LFP Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the BGS-LFP Hourly Load.
BGS-LFP Monthly Peak Load
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Date Posted
Date Through |
4/27/2006
December 06 | 6/26/2007
March 07 |
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Utility’s customers (Large Commercial and Industrial) with demand of 3 MW or over who have not pre-qualified for BGS-LFP service for the period January 1, 2007 to May 31, 2008 and therefore must take BGS-LRTP service if they choose to take supply service from one of the Ameren Illinois Utilities.
Non-Qualified BGS-LFP Hourly Load
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Date Posted
Date Through |
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Basic Generation Service – Large Service Real-Time Pricing (“BGS-LRTP”)
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Hourly load of all of the applicable Ameren Illinois Utility’s customers (Large Commercial and Industrial) with demand of 1 MW or over. These customers have elected to take real-time pricing supply service from Ameren, or have elected to take a fixed price supply service from Ameren, or have elected to receive supply service from a Retail Electric Supplier. This load data is grossed up by a loss factor to appropriately reflect distribution system losses. This data also includes nominal generation from QFs. This QF generation will reduce the amount of BGS-LRTP Load that auction winners will be obligated to supply. Beginning on January 1, 2007, QF Load will be directly netted out of BGS-LRTP Load.
Eligible BGS-LRTP Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the Eligible BGS-LRTP Hourly Load.
Eligible BGS-LRTP Monthly Peak Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Hourly load of all of the applicable Ameren Illinois Utility’s customers (Large Commercial and Industrial customers) with demand of 1 MW or over who have elected to take real-time pricing supply service from Ameren. This load data is grossed up by a loss factor
to appropriately reflect distribution system losses. This data also includes nominal generation from QFs. This QF generation will reduce the amount of BGS-LRTP Load that auction winners will be obligated to supply. Beginning on January 1, 2007, QF Load will be directly netted out of BGS-LRTP Load.
BGS-LRTP Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the BGS-LRTP Hourly Load.
BGS-LRTP Monthly Peak Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Basic Generation Service – Fixed Pricing (“BGS-FP”)
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Hourly load of all of the applicable Ameren Illinois Utility’s customers (Residential and Small Business) with demands of less than 1 MW These Customers have elected to receive supply service from one of the Ameren Illinois Utilities or have elected to receive supply service from a Retail Electric Supplier.
Eligible BGS-FP Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the Eligible BGS-FP Hourly Load.
Eligible BGS-FP Monthly Peak Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Hourly load of all of the applicable Ameren Illinois Utility’s customers (Residential and Small Business) with demands of less than 1 MW, who have elected to receive supply service from one of the Ameren Illinois Utilities.
BGS-FP Hourly Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Monthly peak loads for the BGS-FP Hourly Load.
BGS-FP Monthly Peak Load
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Date Posted
Date Through |
4/27/2007
December 06 | 6/26/2007
March 07 |
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Other
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Historical load profiles of customers by Fixed Price Section rate class.
Historical Rate Class Load Profiles and Methodology
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Date Posted
Date Through |
5/09/2006
January 06 | 8/15/2006
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General characteristics of Qualified Facility generation for each of the Ameren Companies.
Qualified Facility Generation Characteristics
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Date Posted
Date Through |
3/30/2006
December 05 | 8/17/2006
May 06 |
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Monthly historical proxy calculations by Ameren Illinois Utility for the following ancillary services:
· Schedule 1 - Scheduling, System Control & Dispatch Service
· Schedule 2 - Reactive Supply and Voltage Control
· Schedule 3 - Regulation & Frequency Response
· Schedule 5 - Operating Reserves - Spinning
· Schedule 6 - Operating Reserves – Supplemental
and the monthly historical invoiced charges by Ameren Illinois Utility for the following market administration charges:
· Schedule 16- FTR Administrative Rate
· Schedule 17- Energy Market Administration
MISO Cost Data
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Date Posted
Date Through |
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Planning or electric control area hourly load as
reported to the Federal Energy Regulatory Commission by the Ameren Companies in Form 714, which includes the load of the Ameren Companies’ customers, the load of municipal utilities, etc.
FERC 714 Hourly Load
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Date Posted
Date Through |
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A list of all Firm Transmission Rights (“FTRs”) that have been awarded to the Ameren Illinois Utilities in the 2006 annual FTR allocation process.
FTR Allocation Data
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Date Posted
Date Through |
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This file contains CpNode-EpNode relationships for the AMRN.CIPS, CILC.CILC and IP.IP CpNodes included in the September 2006 MISO commercial model as of 08/01/2006.
CpNode-EpNode Relationships
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Date Posted
Date Through |
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