CX-034032: Pick-Sloan Missouri Basin Program - Eastern Division (P-SMBP-ED): Rate Order No. WAPA-218

WAPA-UGP is proposing to use new formula-based methodology for UGP’s rate implementation and annual update procedures with changes related to the planned RTO expansion in the Western Interconnection to: (1)Terminate the Balancing Authority Area (BAA)-related ancillary services (and associated worksheets in the Rate Formula Templates) for Regulation and Frequency Response Service, Operating Reserves—Spinning Reserve Service and Supplemental Reserve Service, Energy Imbalance Service (EI), and Generator Imbalance Service (GI), (2) Incorporate changes in the Rate Formula Templates to calculate the Annual Transmission Revenue Requirement (ATRR) for the Miles City Direct Current (DC) Tie for SPP’s settlements purposes related to SPP’s proposed DC Tie Access Charge, (3) Incorporate changes in the Rate Formula Templates to calculate the subtotals of the ATRR for the SPP West and East BAAs separately for SPP’s settlements purposes, (4) Incorporate a new worksheet in the Rate Formula Templates to calculate the Incremental Market Efficiency Use 4 (Incremental MEU) share for the Miles City DC Tie (5) Incorporate changes in the Rate Formula Templates to calculate the ATRRs for SPP Base Plan Upgrades separately for SPP’s settlements purposes in each of the SPP West and East BAAs, and (6) Update, as needed, the existing Rate Formula Templates to smooth the true-up process impacts, increase transparency, and incorporate the changes noted above.