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    Welcome To SC

    Santee Cooper will implement a revised ATCID and TRMID on April 1, 2017. Santee Cooper has still not determined a need for CBM. Each of these revised documents can be viewed from the ATC Information Link.
    Questions concerning Next Day business should be directed to (843)761-4079. This number is staffed between the hours of 6:30 AM and 5:00 PM EPT on Monday-Friday. All calls outside of this window should be directed to (843)761-4039. All Questions concerning hourly business should be directed to (843)761-4039

    Santee Cooper has published our NITS on OASIS agreements for existing customers as of 2/10/2017. Customers are asked to review and approve their applications by the close of business on Friday February 23, 2017. After that date Santee Cooper will run parallel operations using both the existing OASIS DNR method as well as the new NITS on OASIS method until midnight February 28, 2017. Beginning March 1, 2017 all new network transmission customers will be required to submit all applications and related information on the NITS on OASIS. All DNR requests after midnight February 28, 2017 should be done through the NITS on OASIS module. All existing functionality for Network Transmission requests will be disabled at that time.

    On June 23, 2014 the Authority's Board of Directors amended and restated the Authority's Open Access Transmission Tariff effective July 1, 2014 to incorporate revisions and additions provided for in FERC Order 764, Order 784, and Order 793.

    On Thursday May 26,2016 Santee Cooper hosted a Webex from 10:00 AM until 10:30 EPT to discuss our new formula transmission rates that will be effective midnight June 1, 2016. The conference call in number and other details can be found on the pdf document filed in the Transmission and Ancillary Rates folder. Santee Cooper sent out an email to our transmission customers on May 4, 2016 with the WebEx information as well. The Power Point presentation from the WebEx has now been posted in the Transmission and Ancillary Rates folder

    Santee Cooper's 2016-17 transmission and ancillary rates for the period midnight June 1, 2016 through midnight June 1, 2017 was posted as a pdf document in the Transmission and Ancillary Rates folder on the OASIS page on Friday May 13, 2016

    On May 13, 2016 Santee Cooper posted the 2016-2017 formula rates along with the true up for 2015 for customer review. These postings can be found under the Transmission and Ancillary Rate Folder on the OASIS main menu. These rates will become effective at midnight EPT on June 1, 2016. Please note that effective midnight EPT on June 1, 2013 Santee Cooper began charging Schedule 1 Rates (Scheduling, System Control and Dispatch Services) on all TSRs. Total transmission costs will include Schedule 7 or 8 rates, Schedule 1 rates, and Schedule 2 rates plus any other Ancillary Service the customer may elect to purchase from Santee Cooper. Any questions concerning the rates or 2016-2017 template should be sent via e-mail to either or


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