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  • Welcome to NorthWestern Energy's OASIS



    Announcements can be found under "NEWS" located on the left.


    August 8, 2016 All Colstrip startup energy reservations must be made to a Point of Delivery (POD) of COLSTRIP on the NorthWestern Energy Transmission System.

    August 3, 2016 NorthWestern Eneregy has posted an RFP for spinning and supplemental reserves for March 1, 2017 to March 1, 2018. Responses are due by September 6, 2016 5:00pm MPT.

    NITS Deadline Extension FERC has extended the deadline for NITS on OASIS - Order 676-H (Docket RM05-5-022) , we will have all customer information posted on NITS OASIS by February 1, 2017 with the full compliance deadline extended to March 1, 2017. If you have any questions please direct them to


    January 25, 2016 NorthWestern has resolved any issues with customer Network Integration Transmission Service (NITS)information in accordance with FERC Order 676-H timeline.

    October 23, 2015 NorthWestern Energy has sent all of its network customers the specific information it intends to post on OASIS in the Version 2.0 NITS OASIS Templates. This is in accordance with FERC Order 676-H, and the NAESB Version 003 Standards. If you did not receive this information, please contact us at 406-497-4500, or

    July 24, 2015 Plan and Procedures for Transitioning NITS

    In accordance with NAESB Version 003 standards, and FERC Order 676-H, NorthWestern Energy has posted a Plan and Procedures on OASIS for transitioning existing customers NITS service arrangements to Version 002 NITS OASIS Templates. This document can be found under the Business Practices folder to the left.

    NWPP Reserve Sharing settlement pricing are available at, on the right hand screen under "Reserve Sharing".

    The interconnection queue was last updated on: October 19, 2016

    If you have problems or questions,

    please call our pre-schedule desk at 406-497-4500,

    or OATI's technical support at 763-201-2020.


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