NSP System: 10-Year Transmission Plan / 20-Year ... - Xcel Energy
NSP System: 10-Year Transmission Plan / 20-Year ... - Xcel Energy
NSP System: 10-Year Transmission Plan / 20-Year ... - Xcel Energy
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Proposed <strong>Transmission</strong> ProjectsZone 4: Sioux Falls Area (<strong>20</strong>15-<strong>20</strong>19)# Project Comments ISD Drivers1 Falls substation115 kVterminationAdd termination at Fallssubstation for new 115 kVline<strong>20</strong>15-<strong>20</strong>19Reliability2 Convert SouthSioux Fallssubstation to 115kVBuild new South SiouxFalls substation to replaceexisting South Sioux Fallssubstation and convertfrom 69/13.8 kV to115/13.8 kV<strong>20</strong>15-<strong>20</strong>19Reliability3 West Sioux Falls –Falls – LincolnCounty 69 kV LineConversion to 115kVConvert existing WestSioux Falls – South SiouxFalls – Lincoln Co. 69 kVline to 115 kV (959/TWACSS) and minimalsubstation terminationwork at West Sioux Falls<strong>20</strong>15-<strong>20</strong>19Reliability• Potential need for bulk supply source onthe west side of the city of Sioux Fallssometime after <strong>20</strong>19• Growing load around the 115 kV loop• Wind development may accelerate needfor additional bulk supply sources aroundSioux Falls in the future
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