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3960 6th Avenue North - 29-118-23-33-0009
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3960 CR 6 Excel substation
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Xcel Substation 2011-2012 - File Cabinet 1
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EQB & MN Rules
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Last modified
8/22/2023 4:26:45 PM
Creation date
9/27/2021 11:51:38 AM
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x Address Old
House Number
3960
Street Name
6th
Street Type
Avenue
Street Direction
North
Address
3960 6th Avenue North
Document Type
Land Use
PIN
2911823330009
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Based upon all of the proceedings herein, the Commission makes the following: <br /> FINDINGS OF FACT <br /> Applicant <br /> 1. Northern States Power Company, a Minnesota corporation (Xcel Energy or <br /> Applicant), submitted an application for a route permit to the Minnesota Public <br /> Utilities Commission. Northern States Power Company, a Minnesota corporation, <br /> is a wholly-owned subsidiary of Xcel Energy Inc., a utility holding company with <br /> its headquarters in Minneapolis. Xcel Energy will construct, own, and operate the <br /> Orono Substation Expansion and New 115 kV Transmission Line Project (project). <br /> Xcel Energy is a Minnesota corporation with its headquarters in Minneapolis, <br /> Minnesota. Xcel Energy is also a wholly owned subsidiary of Xcel Energy Inc.I <br /> Project Description <br /> 2. The project is located in Township 118N, Range 23 W, Sections 29, 30, and 32 in <br /> the northeastern portion of the city of Orono in Hennepin County, Minnesota.2 <br /> 3. The project would replace the existing 69 kV Orono Substation with a new 115 kV <br /> substation at the same location, but with a larger footprint. The project would <br /> connect the new substation to the existing Xcel Energy 115 kV transmission line <br /> 0831 through a new double circuit 115 kV transmission line of approximately 2,040 <br /> feet (0.4 miles). The project would also remove approximately 1,030 feet of 115 <br /> kV transmission line and replace it with approximately 1,100 feet (0.2 miles) of <br /> new single circuit 115 kV transmission line.3 <br /> 4. Xcel Energy states in its route permit application that the project is proposed to <br /> improve local and system reliability, reduce the risk of overloads, and allow for <br /> additional load growth in the future. The Orono Substation is currently fed at 69 <br /> kV from two directions: Dickinson and Crow River from the west and Medina <br /> from the east. In response to historical and anticipated load growth in the west <br /> metro area many 69 kV facilities are being upgraded to 115 kV. Planned upgrades <br /> anticipate conversion of the existing 69 kV line between the Medina and Plymouth <br /> substations to 115 kV would mean that the eastern source feeding the Orono <br /> Substation would be lost, resulting in a radial feed (only one source) into the <br /> substation. Radial loads have lower reliability than those with two sources. With <br /> the loss of the 115/69 kV connection at Medina, there is not enough capacity on the <br /> 69 kV system to support the load in the area. If the Crow River 69 kV line were to <br /> be taken out of service, either through a system fault or inadvertent breaker <br /> operation, the result would be low voltages and system overloads. Xcel Energy <br /> Exhibit(Ex.)2 at pp.l,6(Route Permit Application [Application]). <br /> 2 Ibid.at p. 1 <br /> 3 Ex. 12 at p.I (Environmental Assessment[EA]) <br /> 2 <br />
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