Desert Southwest Customer Service Region Network Integration Transmission Service and Ancillary Services-Rate Order No. WAPA-175

The Western Area Power Administration (Western) Parker-Davis (P-DP) and Pacific Northwest-Pacific Southwest Intertie (Intertie) Projects' Network Integration Transmission Service (NITS) formula rates under Rate Schedules PD-NTS3, INT-NTS3 and Western Area Lower Colorado Balancing Authority's (WALC) Ancillary Services formula rates under Rate Schedules DSW-SD3, DSW-RS3, DSW-FR3, DSW-EI3, DSW-GI1, DSW-SPR3, and DSW-SUR3 expire on September 30, 2016. Western is proposing modifications to the existing formula rate schedules and adding two new rate schedules, referred to as Transmission Losses Services (DSW-TL1) and Penalty Rate for Unreserved Use of Transmission Service (DSW-UU1). Western will prepare a brochure that provides detailed information on the proposed formula rates. If adopted, the proposed formula rates, under Rate Schedules PD-NTS4, INT-NTS4, DSW-TL1, DSW-UU1, DSW-SD4, DSW- RS4, DSW-FR4, DSW-EI4, DSW-GI2, DSW-SPR4, and DSW-SUR4 will become effective October 1, 2016, and will remain in effect through September 30, 2021, or until superseded. Publication of this Federal Register notice (FRN) begins the formal process for the proposed formula rates.