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Formula Rates

Annual transmission revenue requirements applicable under Attachment H of PJM's Open Access Transmission Tariff (PDF) are updated periodically and/or annually for the upcoming year. The time periods for the respective company's service and rates are reflected below.

Rates Effective January 1, 2012 – December 31, 2012
Rates Effective January 1, 2011 – December 31, 2011
Rates Effective January 1, 2010 - December 31, 2010
Rates Effective January 1, 2009 - December 31, 2009
Rates Effective October 1, 2008 - December 31, 2008
Rates Effective January 1, 2008 - December 31, 2008


Annual transmission revenue requirements applicable under attachment H and updated annually for the upcoming year on or before May 15 of each year for service on and after June 1 of a given calendar year through May 31 of the subsequent calendar year.

AEP Companies Rates Effective July 1, 2011 – June 30, 2012
Rates Effective June 1, 2011 – May 31, 2012
AEP Companies Rates Effective July 1, 2010 – June 30, 2011
Rates Effective June 1, 2010 – May 31, 2011
Rates Effective July 1, 2009 – June 30, 2010
Rates Effective June 1, 2009 - May 31, 2010
Rates Effective March 1, 2009 - May 31, 2009
Rates Effective November 1, 2008 - May 31, 2009
Rates Effective June 1, 2008 - May 31, 2009
Interim Formula Rates Effective March 1, 2008 – December 31, 2008 Pending FERC Approval of Settlement
Rates Effective May 1, 2007 - May 31, 2008
Rates In Effect January 2, 2008 - May 31, 2008
Rates Effective June 1, 2007 - May 31, 2008
Rates Effective June 1, 2006 - May 31, 2007
Rates Effective June 1, 2005 - May 31, 2006