Xcel Energy Projects From 2008 Reliability Assessment
Feb 03, 2016
Xcel Energy
Projects From
2008 Reliability Assessment
Douglas Co 2nd Transformer:
• Low voltages in the region for the loss of Douglas Co transformer.
• Install a 2nd Douglas Co 115/ 69 kV transformer.
• Planned inservice date is ~ 2011
Monticello Transformer Upgrade:
• Loss of Sherco – Benton 345 kV line overloads Monticello 345/230 kV transformer.
• Upgrade the existing transformer to 550 MVA.
• Inservice date ~ 2011.
Sioux Falls Area Upgrades• Add second 112
MVA transformer at Lawrence
• ISD – 12/1/2012
• Split dbl ckt 115 kV line from Split Rock-Cherry Creek/West Sioux Falls
• ISD – 6/1/2011
• Solves low voltages and transformer overloads
South Minneapolis Electric Reliability Project (SMERP)
New HWY 280 345/ 115kV sub
2013
345 kV line 2013-2020
New Hiawatha sub 2010 andMidtown sub
2010
Open Elliot Park-Hiawatha line 2013-2020
New Crosstown sub 2014
Dbl ckt 115 kV line 2014
To Lexington
115 kV line 2013
2-672 MVA @ Parkers Lake
2015
2-672 MVA @ Eden Prairie
2014
2-672 MVA @ Red Rock
2013
Cannon Falls Area Upgrades• Loss of either Cannon
Falls transformer overloads the other transformer.
• Add a 115/69kV 112MVA transformer at Colville substation.
• Reroute Cannon Falls-Byllesby 69kV line to Colville-Byllesby.
• Replace bus tie breaker with a breaker ring bus at Cannon Falls.
• ISD – 6/1/2012