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Federal Register / Vol. 86, No. 165 / Monday, August 30, 2021 / Notices The charge will be applied to all schedules, except for schedules that return energy in kind to WALC. WALC
will accept any number of scheduling changes during the day without
additional charge. The charge will be allocated equally among all TSPs, both Federal and non-Federal, listed on schedules inside its BA Area. The Federal transmission segments of the
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schedule are exempt from invoicing since the costs for these segments are included in applicable transmission service rates.
Formula Rate
Annual Cost of Scheduling Personnel and Related Costs Number of Schedules per Year
Charge per Schedule The charge per schedule, per day, is calculated by dividing the annual costs associated with scheduling numerator by the number of schedules per year denominator. The numerator is the annual cost of transmission scheduling personnel, facilities, equipment, software, and other related costs involved in providing the service. The denominator is the yearly total of daily tags which result in a schedule, excluding schedules that return energy in kind.
Based on the formula rate, the charge will be calculated each fiscal year using updated financial and schedule data.
The charge will be effective on October 1st of each year and posted on WALCs website.

Rate Schedule DSWRS4
SCHEDULE 2 to OATT
Supersedes Rate Schedule DSWRS3
dated October 1, 2016, through September 30, 2021
United States Department of Energy Western Area Power Administration Desert Southwest Region and Western Area Lower Colorado Balancing Authority Reactive Supply and Voltage Control From Generation Sources or Other Sources Service Approved Under Rate Order No.
WAPA175
Effective The first day of the first full billing period beginning on or after October 1, 2016, and extending through September 30, 2021, or until superseded by another rate schedule, whichever occurs earlier.
Note: This rate schedule was extended by Rate Order No. WAPA200 through September 30, 2026.
Applicable In order to maintain transmission voltages on the transmission facilities
within acceptable limits, generation facilities and non-generation resources capable of providing Reactive Supply and Voltage Control VAR Support Service are operated to produce or absorb reactive power. This service must be provided for each transaction on the transmission facilities within the Balancing Authority BA by the Transmission Service Provider TSP or the BA who performs this function for the TSP.
VAR Support Service will be provided by the Western Area Lower Colorado Balancing Authority WALC.
Customers of a Federal TSP must purchase this service from WALC unless the transmission customer has generating resources capable of providing VAR Support Service directly to the Federal TSP and has executed a contract stipulating all the provisions of their self-supply. If WALC provides VAR Support Service on behalf of any non-Federal TSP, this service will be assessed on either the non-Federal TSPs reserved capacity or the scheduled quantity of the non-Federal TSPs customers.
Formula Rate
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VAR Support _ Annual Revenue Requirement for VAR Support Service Rate Transmission Transactions Requiring VAR