Map of the Southwest Power Pool Region for triennial review..

The Commission will review each region every three years according to a rotating schedule. The SPP region will be reviewed on the following dates, and every three years thereafter, depending on what type of entity the seller is.


SPP Schedule for Filing from Order 697-A
Study Period Filing Period Entities Required to File
December 1, 2012 - November 30, 2013 June, 2015 Transmission Owning Utilities
December 1, 2012 - November 30, 2013 December, 2015 Non-Transmission Owning Utilities
December 1, 2015 - November 30, 2016 June, 2018 Transmission Owning Utilities
December 1, 2015 - November 30, 2016 December, 2018 Non-Transmission Owning Utilities
December 1, 2018 - November 30, 2019 June, 2021 Transmission Owning Utilities
December 1, 2018 - November 30, 2019 December, 2021 Non-Transmission Owning Utilities
December 1, 2021 - November 30, 2022 June, 2024 Transmission Owning Utilities
December 1, 2021- November 30, 2022 December, 2024 Non-Transmission Owning Utilities

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This page was last updated on June 17, 2020