Customer Choice

Electric Generation Supplier Coordination Tariff
Duquesne Light Company’s Supplement No. 7 to Tariff No. 3S was issued on July 12, 2007, to become effective on January 1, 2008, in accordance with the Commission’s approval at Docket No. P-00072247 in Duquesne’s POLR IV proceeding. In Supplement No. 7, Transmission Losses as well as Distribution Line Losses have been updated to reflect the Company’s line loss study performed in September 2005 supporting the distribution rates approved by the Commission’s final order at R-00061346 dated December 1, 2006. In addition, Rule No. 12.1.5 has been modified and Rule No. 12.1.7 has been added to Rule No. 12 to incorporate the Purchase of Receivables Program relative to the receivables associated with small customers served by EGSs utilizing the Company’s billing services.