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and pilot relaying, installing fiber optic lines for relaying and transfer trip, installing I <br /> breakers, reconfiguring line protection, replacing shield wire with fiber optic shield wire, <br /> and related modifications;and <br /> • revise as needed line designations, terminals, breakers, relays, and line protection as a <br /> result of the above changes in connecting the new Orono Substation to 115 kV <br /> transmission Line 0831. <br /> Specific details to the substation replacement and associated facilities are further described in <br /> Section 4.4. While not part of the Route Permit requested by Xcel Energy, the following work will <br /> also be completed: <br /> • disconnect approximately 385 feet of existing Great River Energy (GRE) 69 kV <br /> transmission line (BD) from the existing Orono Substation and re-route approximately <br /> 420 feet of this line around the proposed new Orono Substation and associated new 115 <br /> kV transmission line facilities (the re-routed GRE 69 kV transmission line would not be <br /> connected to the new Orono Substation). <br /> The proposed transmission structures are single-pole, galvanized steel or weathering-steel type <br /> structures. The height of the new single circuit poles will range from 70 to 90 feet while the double I <br /> circuit poles will range from 75 to 115 feet, with the spans between poles ranging from 300 to 500 <br /> feet. Xcel Energy respectfully requests a route width of up to 200 feet on each side of the Proposed <br /> Route alignment (400 feet total width), on either side of Line 0831 to Structure 076 and up to the <br /> south side of U.S. Highway 12 (see Figure 2). Following construction,the typical right-of-way width <br /> for the new transmission line will be 75 feet. <br /> 3.3 Need for Project 1 <br /> The Project,which includes increasing the operating voltage of the existing Orono Substation from <br /> 69 kV to 115 kV and connecting it to Xcel Energy's existing transmission system, is needed to <br /> improve local and system reliability, reduce the risk of overloads, and allow for additional load <br /> growth in the future (Hollydale/Meadow Lake Load Serving Study, Xcel Energy Services, Transmission <br /> System Planning and Reliability Assessment,June 2011). ' <br /> 3.4 Project Schedule <br /> Construction for the Project is expected to begin in the first quarter 2012, and Xcel Energy <br /> anticipates a second quarter 2013 in-service date for the proposed facilities. Table 2 provides an <br /> estimated permitting and construction schedule summary. <br /> Table 2 <br /> Estimated Project Schedule <br /> Project Task Date <br /> File Route Permit Application with the Commission 2nd Quarter 2011 <br /> Route Permit Review Process Complete 4d'Quarter 2011 <br /> Begin Transmission Line and Substation Construction 151 Quarter 2012 <br /> In-Service Date 2nd Quarter 2013 I <br /> Orono Project June 7,2011 <br /> MPUC Docket No. E002/TL-11-223 10 <br />