Number of Pepco Customers

• Previous Years 2005-2008 2004-2007 2003-2006 2001-2005   2006-2009 Year-End at Pepco's Retail Customers*

Residential Rates and Bills

• Previous Years Jan 2010 Dec 2009 Nov 2009 Oct 2009 Sep 2009 Aug 2009 Jul 2009 Jun 2009 May 2009 Apr 2009 Mar 2009 Feb 2009 Jan 2009 Dec 2008   February 2010 Sample Monthly Electric Billing Comparison*
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001   2009 Average Monthly Residential Bills for District of Columbia, Maryland and Virginia
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001   2009 Residential Electric Rate Comparison for District of Columbia, Maryland and Virginia
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001   2009 Pepco's Summer Rates Return with June Billing*
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001 2000   2009 Pepco's Winter Rates Return with November Billing*
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999   2009 Pepco's Average Residential Usage and Bill Components in District of Columbia
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001 2000   2009 Pepco's Average Residential Usage and Bill Components in Maryland
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001 2000   2009 Pepco's Average Residential Usage and Bill Components in Virginia (Dominion Power)
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999   2009 Pepco's Average Residential Bills - District of Columbia vs. Maryland
• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001   2009 Average Residential Bills -District of Columbia vs. Virginia (Dominion Power)
• Previous Years 1999   2000 Average Residential Bills - District of Columbia vs. Virginia

Pepco's Residential Customers and Usage by Month

• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999   2009 Pepco's Average Residential Customers and Usage By Month

Large Commercial Customer Charges

• Previous Years 2008 2007 2006 2005 2004 2003 2002 2001   2009 Pepco's Average Large Commercial Customer's Charges- District of Columbia and Maryland
• Previous Years 1998   1999 Pepco's Average Large Commercial Customer's Charges- District of Columbia, Maryland and                                Virginia

Retail Average Revenue per kWh by Customer Class

• Previous Years 2006 2005 2004 2003 2002 2001 2000 1999   2007 - For Pepco and other PJM Companies
• Previous Years 2006 2005 2004 2003 2002 2001 2000 1999 1998   2007 - District of Columbia, Selected States Where Restructuring Plans Adopted and United States
• Previous Years 2006 2005 2004 2003 2002 2001 2000 1999 1998   2007 - District of Columbia, PJM States, Virginia, and United States

Regional Fuel Mix Data for Pepco and PJM

• Previous Years 2007 2006 2005 2004 2003   2008 Regional Fuel Mix Data For Pepco*

Participants in Pepco's Low Income Discount Program

• Previous Years Sep 1985 - Dec 2008 Sep 1985 - Dec 2007 Sep 1985 - Dec 2006 Dec 2004 - Dec 2005 Sep 1985 - Dec 2004   September 1985 to December 2009 Number of Residential Aid Discount (RAD) Participants*

History of Pepco's Residential Rates by Customer Class

• Residential ( R ) Customer Class*
• Residential All Electric (AE) Customer Class*
• Residential Aid Discount (RAD) Customer Class*