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Electric Choice Enrollment Monthly Report
All Investors Owned Utilities in Maryland
Month Ending September 2008

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A description of all terms used in these tables is provided on the last page following the tables.
 
Number of Customers Served by Electric Suppliers
Distribution Utility Residential Small C & I Mid C & I Large C & I All C & I Total
Allegheny Power 26 3,574 2,465 108 6,147 6,173
Baltimore Gas and Electric 27,870 15,626 12,433 614 28,673 56,543
Delmarva Power & Light 1,101 3,363 2,050 86 5,499 6,600
Potomac Electric Power 27,360 7,816 7,613 488 15,917 43,277
Total 56,357 30,379 24,561 1,296 56,236 112,593
Total Number of Distribution Service Accounts
Distribution Utility Residential Small C & I Mid C & I Large C & I All C & I Total
Allegheny Power 217,081 23,261 6,191 135 29,587 246,668
Baltimore Gas and Electric 1,107,643 94,442 26,002 673 121,117 1,228,760
Delmarva Power & Light 171,954 25,705 4,979 93 30,777 202,731
Potomac Electric Power 475,351 33,943 15,789 584 50,316 525,667
Total 1,972,029 177,351 52,961 1,485 231,797 2,203,826
Percentage of Customers Served by Electric Suppliers
Distribution Utility Residential Small C & I Mid C & I Large C & I All C & I Total
Allegheny Power 0.0% 15.4% 39.8% 80.0% 20.8% 2.5%
Baltimore Gas and Electric 2.5% 16.5% 47.8% 91.2% 23.7% 4.6%
Delmarva Power & Light 0.6% 13.1% 41.2% 92.5% 17.9% 3.3%
Potomac Electric Power 5.8% 23.0% 48.2% 83.6% 31.6% 8.2%
Total 2.9% 17.1% 46.4% 87.3% 24.3% 5.1%
Total Demand in MW (Peak Load Obligation) Served by Electric Suppliers
Distribution Utility Residential Small C & I Mid C & I Large C & I All C & I Total
Allegheny Power 0.00 10.70 196.60 216.30 424 423.60
Baltimore Gas and Electric 94.1 63.99 1,185.87 1,456.02 2,706 2,799.98
Delmarva Power & Light 4.10 18.40 146.20 127.00 292 295.70
Potomac Electric Power 113.72 34.59 660.94 718.75 1,414 1,528.01
Total 212 128 2,190 2,518 4,835 5,047
Total MW Peak Load Obligation for all Distribution Accounts
Distribution Utility Residential Small C & I Mid C & I Large C & I All C & I Total
Allegheny Power 760.10 57.30 350.20 256.20 664 1,423.80
Baltimore Gas and Electric 3,512.94 351.17 1,862.74 1,518.72 3,733 7,245.57
Delmarva Power & Light 501.10 81.00 238.10 133.70 453 953.90
Potomac Electric Power 1,668.23 136.51 1,005.19 761.64 1,903 3,571.57
Total 6,442 626 3,456 2,670 6,752 13,195
Percentage of Peak Load Obligation Served by Electric Suppliers
Distribution Utility Residential Small C & I Mid C & I Large C & I All C & I Total
Allegheny Power 0.0% 18.7% 56.1% 84.4% 63.8% 29.8%
Baltimore Gas and Electric 2.7% 18.2% 63.7% 95.9% 72.5% 38.6%
Delmarva Power & Light 0.8% 22.7% 61.4% 95.0% 64.4% 31.0%
Potomac Electric Power 6.8% 25.3% 65.8% 94.4% 74.3% 42.8%
Total 3.3% 20.4% 63.4% 94.3% 71.6% 38.3%
Number of Electric Suppliers Serving Enrolled Customers
Distribution Utility Residential Small C & I Mid C & I Large C & I
Allegheny Power 5 13 16 13
Baltimore Gas and Electric 15 22 23 19
Delmarva Power & Light 10 18 19 13
Potomac Electric Power 8 18 21 18
Note: A switch from a supplier can be either to another supplier or to utility Standard Offer Service
Special Analysis Tables
Number of Customers that Switched from or to a Supplier During This Reporting Month
Note: A switch from a supplier can be either to another supplier or to utility Standard Offer Service
Distribution Utility Residential Small C & I Mid C & I Large C & I All C & I Total
AP Switches from Supplier 2 24 27 10 61 63
AP Switches to Supplier 12 108 41 3 152 164
BGE Switches from Supplier 261 1,005 766 27 1,798 2,059
BGE Switches to Supplier 1,092 626 206 22 854 1,946
Delmarva Switches from Supplier 45 96 11 2 109 154
Delmarva Switches to Supplier 10 73 62 2 137 147
Pepco Switches from Supplier 48 82 210 6 298 346
Pepco Switches to Supplier 2 15 58 13 86 88
Total Switches from Suppliers 356 1,207 1,014 45 2,266 2,622
Total Switches to Suppliers 1,116 822 367 40 1,229 2,345
Residential Time-Of-Use Enrollment
The customers and load represented in this table are included in the total residential information above
BGE Pepco Total
Residential TOU accounts served by suppliers 1,784 4,426 6,210
Total number of all residential TOU accounts 70,225 54,854 125,079
Percentage of Res. TOU accounts served by suppliers 2.54% 8.07% 4.96%
Residential TOU MW Load served by suppliers 8.42 23.94 32.4
Total MW load of all residential TOU accounts 314.03 283.09 597.1
Percentage of Res. TOU MW load served by suppliers 2.68% 8.46% 5.42%
*Only BGE and Pepco have significant number of Residential TOU customers
Large C&I Customers on Utility Service
For those large C&I customers who are NOT served by suppliers, this table outlines number of customers
and amount of load served under the Type 3 fixed price and the hourly priced options
AP BGE Delmarva Pepco Total
Type 3 Fixed Price customers 0.0
Type 3 Fixed Price MW Load 0.0
Hourly Priced customers 27 59.00 7.0 96.00 189.0
Hourly Priced MW Load 40.0 62.70 6.7 42.89 152.3
 
Terms and clarifications for Enrollment Report Tables
 
All investor owned utility customers are eligible to take service from competitive retail electric suppliers. Market based generation rates go into effect for all customers, with the exception of AP residential customers, effective July 2004. For all other utilities, generation rates are based on the Case 8908 Standard Offer Service framework. AP residential customers continue to have frozen rates based on their restructuring settlements through December 2008.
 
Small C&I customers are commercial or industrial customers with demands less than or equal to 50 kW for AP, 60 kW for BGE and Delmarva and 25 kW for Pepco. These customers are eligible for"Type 1" fixed price utility Standard Offer Service if they do not switch to a supplier.
 
Mid-sized C&I customers are commercial or industrial customers with demands greater than the level for small C&I service (Type 1 SOS) for each utility but less than 600 kW. These customers are eligible for "Type 2" fixed price utility Standard Offer Service if they do not switch to a supplier.
 
Large C&I customers are commercial or industrial customers with demands equal to or greater than 600 kW, these customers have an option to either "Type 3" fixed price utility Standard Offer Service or hourly priced service (based on PJM hourly LMP) if they do not switch to a supplier
 
In accordance with Case 9064, the definitions of Small C&I, Mid C&I and Large C&I customers will remain in effect until June 2008.
 
The format for these reports changed effective May, 2004. All "Residential" and "Total" information is comparable in prior reports, before and after the format change. The "All C&I" column is comparable to the "Non-Residential" column and the "Total" columns are comparable to prior reports. There is no information in the prior reports that is comparable to the "Special Analysis" tables.

 
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