Studies and Reports > 2009 MN Biennial Report > TC Planning Zone > Needs: 6.5.14 Dakota Electric Association Distribution Substation

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6.5.14 Dakota Electric Association Distribution Substation

Tracking Number: 2009-TC-N1

Utility: Great River Energy

Inadequacy: Dakota Electric Association has identified the need for additional sources in its service territory to cope with projected load growth and to improve reliability.

A map of the approximate area where this load growth has occurred and is anticipated to continue to occur is shown on the following page.

Alternatives: Dakota Electric Association looked at multiple alternatives as part of its 2006 Long Range System Planning Study. These alternatives include new distribution substation additions, double ending existing distribution substations, reconductoring /rebuilding existing feeders, and building new feeders.

Analysis: Dakota Electric Association has determined that installation of several new distribution substations in the area is the most expeditious and economical approach to the need for additional power. The following specific installations have been selected:

(1)

Ritter Park Substation: This distribution substation will tap Xcel’s Dakota Heights to Kenrick 115 kV line. It is planned to be in-service in spring 2010

(2)

Nininger substation: This distribution substation will tap Xcel’s Rosemount to West Hasting 115 kV line. It is planned to be in-service in spring 2011

(3)

Ravenna Substation: This distribution substation will tap GRE’s Prairie Island to Spring Creek 161 kV line. The in-service date for this substation is dependent upon the load growth in the area. Dakota Electric Association will continue to monitor the load growth of the area around Prairie Island and will determine the time when this substation is required to be in-service.

Schedule: Ritter Park and Nininger distribution substations are scheduled for spring 2010 and 2011, respectively. Dakota Electric Association will monitor load growth in the Prairie Island area to determine the in-service date for Revenna distribution substation.

Click here or on map below to download high resolution PDF map.