Southwest Power Pool Region (SPP)

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, 2009 - November 30, 2010 June, 2012 SPP Transmission Owners December 1, 2009 - November 30, 2010 December, 2012 Others in SPP that did not file in June and have not been found to be Category 1 sellers. December 1, 2012 - November 30, 2013 June, 2015 SPP Transmission Owners December 1, 2012 - November 30, 2013 December, 2015 Others in SPP that did not file in June and have not been found to be Category 1 sellers.