Balancing Reserves

BP/TC-XX

• Each rate period BPA performs a study to determine the amount of capacity needed to provide the service
• Each rate period BPA evaluates the product and determines if the service needs to be modified
• See OATT Schedules 3,4,9,10 and the Balancing Reserve Capacity BP for more information
• For EIM, Schedules 4e and 9e will apply in lieu of Schedules 4 and 9

Customer Election

• Customer elects to self-supply or take balancing service from BPA at the ACS rate
• Election is once per rate period as both rates and capacity are based on customer election

Dispatch

• Prior to each month BPA evaluates Balancing Reserve need based on any change in generation nameplate
• With-in each hour, BPA (and/or EIM) dispatches Balancing Reserve energy as necessary

Related Information:

New Generation Technology Pilot - January 2026