The Long Island Power Authority ("Authority") seeks to purchase Power Supply Management Services for an initial term of five (5) years with LIPA having a right to extend for an additional five (5) year term, or for ten (10) years as determined by LIPA, beginning on or about October 1, 2009 plus a transition period beginning on a proposed date prior to October 1, 2009. This Request for Proposals to Provide Power Supply Management Services ("PSM RFP" or "RFP") describes the services being sought, proposal requirements, and the evaluation process and criteria. For all information, refer to the RFP website accessible through the LIPA website at www.lipower.org. All questions regarding this solicitation must be submitted by November 28, 2007 as further set forth herein (see discussion in Section VII Communications During RFP Process). This RFP for PSM Services replaces in its entirety a prior RFP for PSM Services dated March 18, 2005 which has been cancelled by LIPA. LIPA has re-evaluated its requirements and needs for PSM Services and has reflected its needs in this RFP. Responses to this RFP are due no later than 3 p.m. Eastern Time, December 21, 2007.