Planning & Projects
Rate Adjustments Transmission Ancillary Services Rates
WAPA-137 Rate Order
Ancillary services are services that make the transmission system "work." They support transmission of capacity and energy from resources to loads while maintaining reliable system operation.
Ancillary services include:
We develop transmission agreements for these services and may modify them upon written notice to the customer. In some projects, customers can get credit on their own power bills if they receive the service from another source or supply it from their own load. If the resources are not available to provide these services, Western will offer to purchase the service and pass through the costs to the customer, plus administrative fees.
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