Below you will find the Archived Summaries of Commission-Approved Charges for ERCOT TDUs Sep 2003 Mar 2004 | Sep 2004 Mar 2005 | Sep 2005 Mar 2006 | Sep 2006 Mar 2007 | Sep 2007 Oct 2008 Mar 2009 | Oct 2009 Mar 2010 | Sep 2010 Mar 2011 | Sep 2011 Mar 2012 | Sep 2012