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Alternative Operations Study (AOS)

The Upper Great Plains Region and the other IS owners have studied several forms of potential regional transmission organization participation since the 1990s. Beginning in 2001, the IS participants began to evaluate potential options of joining SPP, joining the Midcontinent Independent System Operator, or continuing operations on a stand-alone basis. These studies identified the option to join SPP as having the most benefit and the least risk.

Historical Decision Points


2013 Public Meetings

Western has presented a detailed explanation of the AOS Team’s findings and recommendation.  Western engaged in outreach to customers and other interested parties via a kickoff webinar held November 13, 2013, and three public meetings held November 19-21, 2013, in Lincoln, NE, Sioux Falls, SD, and Fargo, ND.  The 46 day comment period closed Deceber 16, 2013. The overwhelming majority of the letters received were supportive of Western moving forward with the recommendation to pursue formal negotiations for Western-UGP membership with Southwestern Power Pool.

Read the comments from this public outreach.

  • Question/Comment and Answer Summary

    Read Western's responses to public comments.

  • Meeting Documentation - items will be posted as they become available:

RTO Membership Public Information Forums, Nov 19, 20, & 21, 2013 (2 mb pdf)

AOS Recommendation Webinar Kick-off on Nov 13, 2013 (23 mb wmv) (Can be viewed with Windows Media Player)

AOS Recommendation Webinar Kick-off on Nov 13, 2013 (1 mb pdf)

Information regarding the recommendation, including comments, letters, and other supporting documents made or retained by Western are for the purpose of pursuing this recommendation.


Recommendation Support & Documentation

Memo from the Administrator, July 9, 2014 (826 KB .pdf)

Letter from the Administrator, January 9, 2014 (441 KB .pdf)

11/1/13 FRN-Recommendation From Western to Pursue RTO Memebership (270 KB .pdf)

11/1/13 Customer Notification Letter (112 KB .pdf)

Alternative Operations Study Summary (377 KB .pdf)

Alternative Operations Study Recommendation (616 KB .pdf)

Integrated System Nodal Study-Redacted (4,532 KB .pdf)

Southwestern Power Pool (SPP) Membership

SPP Membership

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