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Studies and Reports > 2011
MN Biennial Report > Transmission Projects Report 2011
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Transmission
Projects Report 2011 |
Chapter 6 |
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pp. 41-77 |
6.0 Needs
6.1 Introduction
Chapter 6 contains information on each of the present and reasonably foreseeable future inadequacies that have been identified in the six transmission zones. A brief explanation of what information is found in this chapter is included because there are some changes from what has been reported in previous reports.
Tracking Numbers
Each inadequacy is assigned a Tracking Number. This numbering system was created in 2005 and continues in this report. The Tracking Number has three parts to it: the year the inadequacy was first reported, the zone in which it occurs, and a chronological number assigned in no particular order. Tracking Number 2011-NE-N1, for example, is first identified in this report and is an inadequacy in the Northeast Zone.
For each zone, a table of present inadequacies is followed with a table showing those inadequacies that were reported in previous years that have now been addressed with some kind of action and can be removed from the list.
In previous reports, each of the pending inadequacies that were listed in the table was described in detail, and maps of each zone and each inadequacy were provided. This year, instead, for Minnesota transmission-owning utilities that are members of MISO, the table contains a cross-reference to where a particular Tracking Number can be found in another report, called the Midwest Transmission Expansion Planning (MTEP) Report. After discussions with the PUC staff, it was determined that it was unnecessary to duplicate the maps and other information that can be found in recent reports from MISO about the various Tracking Numbers identified in this Biennial Report. MISO prepares an MTEP Report each year, so the table indicates the year of the appropriate MTEP Report. More information about the MTEP Report and how it can be located is provided in the text that follows.
MISO Members
Not all transmission-owning utilities in Minnesota are members of MISO. The following utilities are members of MISO and will be relying on the MTEP Report to provide the necessary information about the inadequacies they have identified: American Transmission Company (ATC), Dairyland Power Cooperative (DPC), Great River Energy (GRE), ITC Midwest (ITCM), Minnesota Power (MP), Missouri River Energy Services (MRES), Northern States Power Company (XEL), Otter Tail Power Company (OTP) and Southern Minnesota Municipal Power Agency (SMP).
Non-MISO Members
The following utilities are not members of MISO: East River Electric Power Cooperative (EREPC), Hutchinson Utilities Commission (HUC), L&O Power Cooperative (L&O), Marshall Municipal Utilities (MMU), Minnkota Power Cooperative (MPC), Rochester Public Utilities (RPU), and Willmar Municipal Utilities (WMU).
Each of these non-MISO utilities will continue to report full information about its inadequacies in this Report. This will include information about which utility is involved, what alternative means of addressing each inadequacy are under consideration, what analysis has occurred, and what the possible schedule is. However, these utilities have only two inadequacies to report, both in the Northwest Zone, Tracking Numbers 2007-NW-N3 and 2011-NW-N5.
The MTEP Report
The MISO Transmission Expansion Planning Report is prepared annually by the Midwest Independent Transmission System Operator (MISO) and each utility that is a member of MISO must participate in the MTEP process. The utilities have referenced the MTEP Reports in previous Biennial Reports, as required by PUC rule 7848.1300.C.
Each report is referred to by the year it is adopted. Thus, the most recent report is MTEP11. It is expected to be adopted by the MISO board of directors in December 2011. The latest MTEP Reports are available on the MISO webpage at:
http://www.midwestiso.org (Click on “Planning.”)
Each of the MTEP Reports separates transmission projects into three categories and lists them in Appendices as follows:
Appendix A – Projects recommended for approval,
Appendix B – Projects with documented need and effectiveness, and
Appendix C – Projects in review and conceptual projects.
Generally, when projects are first identified, they are listed in Appendix C, and then they move up to Appendix B and to Appendix A as they are further studied and ultimately brought forth for construction. Some projects never advance to the final stage of actually being approved and constructed.
The MTEP process is ongoing at all times at MISO. Generally utilities submit a list of their newly proposed projects in September. MISO staff evaluates these projects over the next several months, and prepares a draft of the annual MTEP Report around July of the following year. After review by utilities and other interested parties, the MISO board of directors usually approves the report in December. The process continues with another report finalized the following December.
There are good reasons to rely on the MTEP Report and not repeat all of that information in the Biennial Report. Reasons include:
- The MTEP Report is prepared annually so it provides more timely information. The Biennial Report is prepared every other year.
- The MISO planning process is comprehensive. MISO considers all regional transmission issues, not just Minnesota transmission issues.
- MISO conducts an independent analysis of all projects to confirm the benefits stated by the project sponsor. This adds further verification of the benefits of projects.
- MISO holds various planning meetings during the year at which stakeholders can have input into the planning process so there are more frequent opportunities for input (see next paragraph.)
- All completed projects are listed on the MISO webpage.
- Not duplicating the MTEP Report will save ratepayers money. It is costly to require the utilities to redo all the information that is found in the MTEP Report.
Participating in Meetings
Throughout each MTEP cycle, meetings are conducted to help projects progress and to keep stakeholders informed. Importantly, MISO provides numerous opportunities for the utilities, interested persons, and the general public to keep advised of these proceedings and to actually participate in transmission planning discussions. Anyone interested in the annual planning process can contact MISO at clientrelations@misoenergy.org and arrange to get information in the future. Anyone can subscribe to mailing lists for Planning Advisory Committee and Planning Subcommittee meetings.
Subscribing to Mailing Lists
6.2 Finding Information about Specific Projects
Since information about inadequacies identified by the MTO utilities who are MISO members will be found in the MTEP Reports, it is necessary to describe how to actually find that information.
Project Information
MTEP Appendices A, B and C provide general public information about a project including the utility or utilities proposing the project, the reason the project is needed and when the project is expected to be required, as well as other general information. The example below describes the process for finding information about most projects identified in the tables located in Section 6.4 through 6.8 in Appendices A, B and C.
The following example, using the Savanna-Cromwell project in the Northeast Zone, Tracking Number 2003-NE-N2, shows how to find the information about that project in the MTEP Report. First, the table shows the corresponding MTEP Project Number and in which MTEP Report and which Appendix the project can be found. The table also contains entries identifying the utility or utilities leading the project and indicating whether or not a Certificate of Need (CON) is required for the project from the Minnesota Public Utilities Commission (MPUC).
MPUC
Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2003-NE-N2 |
2011/A |
2634 |
Yes |
MP/GRE |
Savanna Project, 115 kV Savanna switching station and Savanna-Cromwell and Savanna-Cedar Valley 115 kV lines, St. Louis Co., MN Docket #CN-10-973 |
Tracking Number 2003-NE-N2 corresponds to MTEP Number 2634. Information about the project can be found in Appendix A of the MTEP11 Report by following these steps:
Step 1: Select the MTEP11 Report. To find MTEP Appendix information about this project, follow the link below:
https://www.midwestiso.org/Planning/TransmissionExpansionPlanning/Pages/TransmissionExpansionPlanning.aspx
Step 2: Select the most recent MTEP Report, which at the time of this writing is the MTEP11 Report. Click on the “MTEP11 Appendices ABC” link to download the Appendices as an Excel spreadsheet. (NOTE: depending on the point in the MTEP cycle at which you view this document, the appendix may still be in draft format, but it will contain the most up-to-date information on projects the utilities have planned or are proposing.)
Step 3: Select the “Projects” tab at the bottom of the spreadsheet which was just downloaded.
Step 4: Hold down the “Ctrl” key and press the “F” key to bring up the “Find” dialog box. Enter the MTEP Project #, which is “2634” in this example, in the dialog box and select “Find Next” to find the cell containing this project #. Information about the project can then be read from the row the MTEP Project # was found in during this search.
Project Facilities
Appendices A, B and C also contain information on facilities (such as transmission lines, substations, etc.) that are part of a specific project. The steps below show how to find this information for the example project.
Step 1: To find information on specific facilities (transmission lines, substations etc.) that are part of a project click on the “Facilities” tab located at the bottom of the spreadsheet that was downloaded in the above example.
Step 2: Hold down the “Ctrl” key and hit the “F” key to bring up the “Find” dialog box. Enter the MTEP Project #, which is “2634” in this example, in the dialog box and then click on “Find All”. The rows containing information about the facilities that are part of this project will be identified (in this example, there are 4 rows). Clicking on the found items will bring you to the row in the spreadsheet with information on each facility associated with this project.
This same procedure can be used to find information for other projects and their associated facilities for the projects listed in the tables in Chapter 6.
Finding Specific Utility Projects in the Appendices
If you are interested in finding what projects an individual utility has submitted to MISO, you can also sort the Appendices to show all projects for that utility, (or, depending on the version of Excel you are using, a group of utilities.) To do this, click on the down arrow located in the column C heading “Geographic Location by TO Member System,” and then select the code for the individual utility you are interested in from the drop-down list (NOTE: some versions of Excel will allow you to select multiple utilities).
Utility |
MISO Geographic Code |
American Transmission Company, LLC |
ATC LLC |
Dairyland Power Cooperative |
DPC |
Great River Energy |
GRE |
ITC Midwest LLC |
ITCM |
Minnesota Power |
MP |
Missouri River Energy Services |
MRES |
Otter Tail Power Company |
OTP |
Southern Minnesota Municipal Power Agency |
SMP |
Xcel Energy |
XEL |
You can also sort other columns in the Appendices in a similar manner. For example, you can sort it to show only projects or facilities in Appendix A by clicking on the arrow in Column A and selecting the desired choice from the drop-down list.
Detailed Project Information
Starting in 2008, the MTEP Reports also included detailed public information on projects that are either approved or recommended for approval by the MISO board of directors (Appendix A Projects). This information is located in Appendix D1 in the MTEP Report for the year the project was approved by MISO. For large projects, this information includes a project map, project justification and information about the system inadequacy that the project is intended to correct. For smaller projects, a subset of this information is included. Starting with the MTEP08 Report, projects located in Minnesota are contained in the “West Region Project Justifications” portion of Appendix D1 in the MTEP Report year that the project was approved or recommended for approval. For information on Minnesota projects approved by MISO prior to 2008, see the appropriate year Minnesota Biennial Transmission Projects Report for the appropriate year.
The example below describes the process for finding detailed information about any project that was slated to be moved to Appendix A (approved by the MISO board of directors) since 2008. For this example, the Southwest Zone (SW) project extracted from the tables in section 6.7 shown below will be used.
MPUC Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2011-SW-N10 |
2009/A |
2156 |
No |
XEL |
1) New 345/115/69 kV Sheas Lake substation between Wilmarth and proposed Helena substation
2) One mile of 69 kV double circuit to connect the existing LeSueure 69kV lines into proposed Sheas Lake substation |
Step 1: To find MTEP Appendix D information about this project, follow the link below:
https://www.midwestiso.org/Planning/TransmissionExpansionPlanning/Pages/TransmissionExpansionPlanning.aspx
Step 2: If the MTEP Report that you are looking for is not shown on this page (for this example it is not shown because you are looking for the MTEP09 Report), go to Step 4. If it is listed, continue on to Step 3.
Step 3: Scroll down to either “Appendix D” or “Appendices” and click on it. Scroll down and select “Appendix D1-Project Justification West” to download this appendix. Then go to Step 8.
Step 4: If the appropriate year MTEP Report is not shown at the link above, which is the case for this example, then follow the link below where previous year MTEP Reports are located.
https://www.midwestiso.org/Planning/Pages/StudyRepository.aspx
Step 5: Click on the “Appendices” link under the appropriate MTEP Report year, MTEP09 in this case, and select “Open” to start downloading the Appendices.
Step 6: Depending on the software installed on your computer, the file will either be downloaded directly or a “Zipped File” dialog box will appear. If file was downloaded directly, go to Step 8. If a Zipped dialog appears select “I agree.” Then select “WinZip Classic” and then double click on the file containing “Appendix_D1.” Then go to Step 7.
Step 7: In the “Zipped File” dialog box select “I agree,” then select “WinZip Classic” and double click on the “Appendix D1 Project Justifications” PDF file or the Appendix D1 “Project Justifications West” file if files for more than one region are shown. In this example you would click on “Appendix D1_New App A Project Justifications.pdf.” Then follow the WinZip dialog as before to download the file.
Step 8: Once the desired Appendix D1 is downloaded, use the PDF search tools to find “2156” to locate information on this project.
This same procedure can be used to find more detailed information on most projects shown in the tables in Sections 6.3 through 6.8 that have moved to MISO Appendix A since 2008. In addition, if you search for a specific utility’s name, you can find information on projects that utility has submitted and have been or are being considered for approval by the MISO board of directors.
6.3 Northwest Zone
6.3.1 Needed Projects from non-MISO Members
a) Load Expansions in Northwestern Minnesota
Tracking Number. 2007-NW-N3
Utilities. Minnkota Power Cooperative (MPC) and Otter Tail Power Company (OTP)
Inadequacy. The Northwestern Minnesota area is served by a network of 115 kV lines with three 230 kV sources at Drayton, Grand Forks, and Winger. Loss of any one source forces the load to be served from the remaining two sources.
Alternatives. Several different transmission alternatives were developed as part of an Enbridge Transmission Study to assess the ability of the transmission system to serve the anticipated load increase for the Enbridge pipeline. These included:
- a new Oslo 230/115 kV substation developed near Oslo where the existing 230 kV line from Drayton to Prairie is closest to the existing 115 kV system,
- a new Winger – Thief River Falls 230 kV line,
- a new Winger – Clearbrook – Thief River Falls 230 kV line, or
- a capacitor bank / system rebuild alternative.
The options above will be reconsidered and compared with a transformer replacement to determine an appropriate course of action.
Analysis. The Winger 230/115 kV transformer was identified in the Enbridge Transmission Study performed by OTP. The option implemented from the Enbridge Transmission Study was to install capacitor banks, with the recognition that the Winger 230/115 kV transformer may need to be replaced as soon as 2013 depending on how the load in the region develops (not only at Enbridge pumping stations but across the northwestern Minnesota region).
Firm delivery service for the Ashtabula Wind Project was evaluated in the “Minnkota Power Cooperative Generation Study Report for Service to Native Load”, which was performed by MPC. The study showed that a fault on the Grand Forks – Falconer 115 kV line caused an overload on the Winger 230/115 kV Transformer. The study demonstrated a final upgrade requirement of 199 MVA, to be completed by 2013.
Schedule. Both study efforts mentioned above determined that an upgrade to mitigate loading on the Winger 230/115 kV transformer must be completed by the winter of 2013. A schedule will be developed as definite mitigation plans are determined.
b) Richer – Roseau – Moranville 230 kV Line Uprate
Tracking Number. 2011-NW-N5
Utility. Minnkota Power Cooperative (MPC)
Inadequacy. The Langdon Wind Project is a 200 MW wind farm located approximately 10 miles south of Langdon, ND. The project was built in two stages, Langdon 1 (160 MW) and Langdon 2 (40 MW). The generation is delivered to the Langdon 115 kV Substation via a 10 mile 115 kV line.
As part of the Upper Midwest Wind Initiative, MPC is building an approximately 250 mile 345 kV line from the Center 345 kV substation to the Prairie 345 kV substation. The new line will facilitate the delivery of the output from the Milton R. Young #2 generator over the AC system. The energy produced by Young #2 will also be transferred in increasing shares from Minnesota Power to MPC.
These projects, in conjunction with increasing load in northern Minnesota and a reduction in the schedule of the Square Butte DC line due to Young #2 transitioning to the AC system, are expected to cause additional north to south flows on the 230 kV line connecting the Winnipeg, MB area to the Duluth, MN area. As a result of these increased flows, overloads on the transmission system may occur, namely along the Richer – Roseau – Moranville 230 kV line.
The Richer – Roseau – Moranville 230 kV Line and the substation equipment are owned by Manitoba Hydro, Xcel Energy, and MPC. The current line rating was assigned due to voltage concerns on the line. It was found that at high flow levels, the voltage drop on the line per MW of flow added became increasingly severe.
Alternatives. An investigation has not yet been performed to evaluate mitigation options. The line conductor rating is sufficient to handle the higher flows, so the mitigation will likely be in the form of reactive support. There may also be some work required on the line relays.
Analysis. Firm delivery service for the previously mentioned projects was evaluated in the “Minnkota Power Cooperative Generation Study Report for Service to Native Load”, which was performed by MPC. The study showed that a fault on the Forbes – Chisago 500 kV line, along with corresponding cross trip of the Dorsey – Roseau – Forbes 500 kV line and Manitoba DC reductions, caused an overload on the Richer – Roseau – Moranville 230 kV Line, which runs approximately parallel with the 500 kV line. The study demonstrated a final upgrade requirement of 239 MVA.
Schedule. Per “Minnkota Power Cooperative Generation Study Report for Service to Native Load,” the line upgrade must be completed by the summer of 2017. A facility study has not yet been performed.
6.3.2 Needed Projects from MISO Members
MPUC Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2003-NW-N2 |
2010 / B |
2824 |
No |
OTP/
MPC |
Add capacitor banks (2 x 15 MVAR) on the 115 kV system at the Hensel Substation in Pembina County, North Dakota to support voltages in the Northern Valley Area. (Also reference 2007-NW-N3) |
2003-NW-N3 |
2008 / A
2010 / B
|
1033
585
|
No
No
|
GRE
OTP |
Add new Silver Lake 230/41.6 kV Substation along Fergus Falls – Henning 230 kV Line in Otter Tail County to support 41.6 kV system in the area.
Convert existing 41.6 / 12.5 kV Substation in Pelican Rapids (Otter Tail County) to 115/12.5 kV Substation to mitigate 41.6 kV system issues |
2005-NW-N2,
2005-CX-1
|
2006 / A
2008 / A
|
279
286
|
Yes
Yes
|
CapX/MPC
CapX
|
Add new 230 kV Line between Boswell and Wilton (Bemidji – Grand Rapids 230 kV Line) to support the Bemidji area and the Red River Valley during winter peak conditions. This project is located in both the Northwest and Northeast zones. PUC Docket No. TL-07-1327
Add new 345 kV Line between Monticello and Fargo to support the Red River Valley and other growing towns along the Interstate 94 corridor during peak load conditions. This project is located in both the Northwest & West Central zones. PUC Docket Nos. TL-09-246 and TL-09-1056 |
2007-NW-N3 |
2010 / A |
2826 |
No |
OTP/MPC |
Add capacitor to the 115 kV transmission system in northwest Minnesota at the Karlstad Substation in Roseau County (2 x 8 MVAR), Clearbrook Substation in Clearwater County (2 x 17 MVAR) and the Thief River Falls Substation in Pennington County (1 x 15 MVAR) to support the increasing loads in this area. |
2009-NW-N2 |
2010/A |
2670 |
No |
GRE |
Voltage problems in the Frazee area are planned to be addressed by the addition of a new Schuster Lake 115/41.6 kV Substation near Frazee in Otter Tail County to support the 41.6 kV system in this area. |
2009-NW-N3 |
2011/A |
2643 |
No |
GRE |
The existing GRE 41.6/12.5 kV Substation at Parkers Prairie in Otter Tail County will be converted to 115/12.5 kV by tapping an existing 115 kV line between Miltona and Elmo to alleviate voltage and loading concerns in this area for an outage of the 115/41.6 kV source at Miltona. PUC Docket No. TL-11-867 |
2009-NW-N6 |
2009 / C |
3204 |
Yes |
OTP |
The 45-mile Sheyenne – Audubon 230 kV Line in Clay and Becker counties needs to be upgraded to a higher capacity due to the interconnection of wind generation at the Maple River Substation in Cass County, North Dakota. |
2009-NW-N7 |
2010 / A |
3156 |
Yes |
CapX |
As part of the Bemidji – Grand Rapids 230 kV Project (see 2005-NW-N2 and 2005-CX-1), studies have shown that an additional 230/115 kV delivery is needed at the Cass Lake Substation (Cass County) to support the area during contingencies. Along with this new transformer at Cass Lake, studies have shown that the Cass Lake – Nary 115 kV Line will need to be reconductored to accommodate the expected post-contingent flows once Bemidji – Grand Rapids is in-service. Furthermore, a new 115 kV switching station is being added at Nary (Hubbard County) as part of the Bemidji – Grand Rapids project to increase the reliability of the transmission system. |
2011-NW-N1 |
2011 / A |
3466 |
No |
OTP |
Add a new three-way switch on the Doran – Doran Tap 41.6 kV line to facilitate the interconnection of a new 5 MW wind farm near Doran (Wilkin County, MN). This project has a signed Generator Interconnection Agreement (GIA) as MISO Project J035 and is planned to be in-service during the fall of 2012. |
2011-NW-N2 |
2012 / A |
3464 |
No |
OTP |
Add a new three-way switch on the Donaldson – Donaldson Town 41.6 kV line to facilitate the interconnection of a new 20 MW wind farm near Donaldson (Kittson/Marshall Counties, MN). This project has a signed Generator Interconnection Agreement (GIA) as MISO Project G873 and is planning to be in-service by the end of 2012. |
2011-NW-N3 |
2012 / A |
3465 |
No |
OTP |
The existing Donaldson 115/41.6 kV Substation will have the 115 kV portion of the substation updated in order to accommodate the interconnection of a new 80 MW wind farm near Donaldson (Kittson/Marshall Counties, MN). This project has a signed Generator Interconnection Agreement (GIA) as MISO Project G875 and is planning to be in-service by the end of 2013. |
2011-NW-N4 |
2011 / A |
3462 |
No |
OTP |
A new three-breaker 115 kV ring bus will be established between the existing Karlstad Substation and Viking Substation in order to allow for the interconnection of a 100 MW wind farm near Viking, MN (Marshall County). This project has a signed Generator Interconnection Agreement (GIA) as MISO Project G968 and is planning to be in-service by the end of 2012. |
6.3.3 Completed Projects
Some inadequacies in the Northwest Zone that were identified in the 2009 Biennial Report were alleviated through the construction and completion of specific projects over the last two years. Information about each of the completed projects is summarized briefly in the table below. More information about these projects and inadequacies can be found in the 2009 Report. Also, additional information is available by contacting the designated person for the utility that was responsible for constructing the project.
MPUC
Tracking Number |
Utility |
Description |
PUC Docket |
Date Completed |
2007-NW-N2 |
OTP |
Addition of two new 15 MVAR capacitor banks on the 115 kV system at Cass Lake
Replacement of the existing 115/69 kV transformer at Cass Lake with a larger transformer |
Not required |
Transformer Replacement, 2009
Capacitor Bank Installation, 2010 |
2007-NW-N4, 2009-NW-N1 |
OTP |
Fergus Falls SE 115/12.5 kV Substation (South Cascade Substation)
Addition of a third 115/12.5 kV Substation in the Fergus Falls area along Hoot Lake – Grant County 115 kV Line |
Not required |
2010 |
2009-NW-N1 |
GRE |
Tamarac Substation
Addition of 115 kV Circuit Breaker and 20 MVAr Capacitor Bank |
Not required |
2009 |
2009-NW-N4 |
MPC |
Helga Substation |
Not required |
2008 |
2009-NW-N5 |
OTP |
Bemidji 115 kV Substation
Replacement of a 115 kV breaker at Bemidji on the Wilton line to increase the rating of the line. |
Not required |
2010 |
6.4 Northeast Zone
6.4.1 Needed Projects
The following table provides a list of transmission needs identified in the Northeast Zone by MISO utilities. There were no projects identified in this zone by non-MISO utilities.
MPUC Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2003-NE-N2 |
2011/A |
2634 |
Yes |
MP/
GRE |
Savanna Project, 115 kV Savanna switching station and Savanna-Cromwell and Savanna-Cedar Valley 115 kV lines, St. Louis Co., PUC Docket Nos. CN-10-973 and TL-10-1307 |
2003-NE-N4 |
2005/A |
600 |
No |
GRE/
MP |
Southdale-Scearcyville 115 kV line (aka Baxter-Southdale) and Scearcyville Substation, project under construction |
2003-NE-N5 |
2010/A |
1018 |
No |
GRE/
MP |
MP Little Falls to GRE Little Falls 115 kV line PUC Docket No. TL-11-318 |
2003-NE-N6 |
NA |
NA |
Yes |
GRE |
Taconite Harbor-Grand Marais 69 kV rebuild to 115 kV.
This project has been delayed indefinitely due to drop in load growth. |
2003-NE-N9 |
2011/B
2012/A |
2569 |
No |
GRE |
Shoal Lake 115 kV distribution |
2005-NE-N2 |
2007/A |
1025 |
No |
Excelsior Energy [1] |
Mesaba IGCC Generator outlet lines, Grand Rapids area, Itasca Co. |
2005-CX-1 |
2006 / A |
279 |
Yes |
CapX |
Add new 230 kV Line between Boswell and Wilton (Bemidji – Grand Rapids 230 kV Line) to support the Bemidji area and the Red River Valley during winter peak conditions. This project is located in both the Northwest and Northeast zones. PUC Docket No. TL-07-1327 |
2007-NE-N1 |
2009/C |
2548 |
Yes |
MP |
New 230/115 kV transformer & transmission line upgrade to 230 kV, Duluth area, St. Louis Co. Recent study indicates this project is not needed until the 2020 timeframe. |
2007-NE-N2 |
2010/A |
2547 |
No |
MP |
Transmission for Essar Steel, Grand Rapids-Nashwauk areas, Itasca Co., under construction PUC Docket No. TL-09-512 |
2007-NE-N3 |
2011/A |
2571 |
Maybe |
GRE |
MN Pipeline-Menahga 115 kV line (operated at 34.5 kV)
This project is impacted by pipeline pumping station voltage drop issues. The line may have to be extended to Hubbard or to RDO-Osage 34.5 kV line, unless voltage drop issues can be corrected. Either option may put line over 10 miles requiring a CON. |
2007-NE-N5 |
2010/A |
2576 |
No |
GRE |
Pokegama 115 kV distribution substation |
2007-NE-N6 |
2012/B |
2632 |
No |
GRE |
Onigum 115 kV conversion
Line is currently less than 10 miles, however CON may be required if route is altered. |
2009-NE-N1 |
2009/A |
2552 |
No |
MP |
3 mile Skibo-Hoyt Lakes 138 kV transmission line, Hoyt Lakes area, St. Louis Co. |
2009-NE-N2 |
2012/C |
2551 |
No |
MP |
Put 28L Tap on own breaker and rebuild to higher capacity, Cohasset – Deer River, Itasca Co. alternative to MTEP Project #3531. |
2009-NE-N2 |
2012/B |
3531 |
Yes |
MP |
Construct 230/115 kV Substation in Deer River, Itasca Co. Project needed due to load growth and to improve reliability in the Deer River area. An alternative to this project is MTEP Project #2551. |
2009-NE-N3 |
2010/A |
3091 |
No |
MP |
Relocate line, Nashwauk area, Itasca Co. |
2009-NE-N4 |
NA |
NA |
Yes |
GRE |
Macville-Blind Lake 115 kV line and Macville 230/115 kV substation.
This project has been delayed indefinitely due to drop in load growth. |
2009-NE-N5 |
2010/A |
2621 |
No |
GRE |
Effie 230/69 kV Substation |
2009-NE-N6 |
NA |
NA |
Maybe |
GRE |
Shamineau Lake 115 kV substation and 115 kV line. This project has been delayed indefinitely due to drop in load growth. |
2009-NE-N7 |
2010/A
2012/B |
2566
2566 |
No
No |
GRE |
Potato Lake 115 kV distribution sub and 115 kV line. Mantrap 115 kV conversion. This project is projected to be in-service in 2015 depending on load growth. PUC Docket No. TL-10-86 |
2009-NE-N8 |
NA |
NA |
No |
GRE |
Barrows distribution substation and 115 kV line. This project has been delayed indefinitely due to drop in load growth. |
2009-NE-N9 |
2011/A |
2599 |
No |
GRE |
Shell Lake 115 kV distribution substation and 115 kV line.
This line will be built at 69 kV. |
2009-NE-N10 |
NA |
NA |
No |
GRE |
Iron Hub distribution substation and 115 kV line. This project has been delayed indefinitely due to drop in load growth. |
2009-NE-N11 |
NA |
NA |
Yes |
GRE |
Rush City-Milaca 230 kV line and Dalbo 230/69 kV source. This project has been delayed indefinitely due to drop in load growth. |
2011-NE-N1 |
2011/A |
3373 |
Yes |
MP |
Rebuild 9 line to higher Capacity Blackberry – Meadowlands, St. Louis & Itasca Co. |
2011-NE-N2 |
2011/A |
2549 |
No |
MP |
Rebuild 15 Line to higher capacity, Fond-du-Lac Duluth area, St. Louis Co. |
2011-NE-N3 |
2010/A |
2762 |
No |
MP |
New Swan Lake load serving Substation, Duluth, St. Louis Co. |
2011-NE-N4 |
2009/A |
2763 |
No |
MP |
Add LSPI 34.5 kV Transformer, Duluth, St. Louis Co. |
2011-NE-N5 |
2010/A |
2761 |
No |
MP |
Construct Dunka Rd Substation to serve Polymet, Hoyt Lake area, St. Louis Co. |
2011-NE-N6 |
2011/A |
3374 |
No |
MP |
Re-energize existing Substation, Taconite MN area, Itasca Co. |
2011-NE-N7 |
2012/A |
3532 |
No |
MP |
25L tap, Construct 115/34.5 kV substation, Hibbing MN area, St. Louis Co. |
2011-NE-N8 |
2012/A |
1292 |
No |
MP |
Rebuild 18 Line to higher capacity, Forbes area, St. Louis Co. |
2011-NE-N9 |
2012/A |
3534 |
No |
MP |
Increase transformer capacity at existing Verndale Substation, Verndale, Wadena Co. |
2011-NE-N10 |
2009/A |
2759 |
No |
MP |
Increase transformer capacity at existing Laskin Substation, Hoyt Lakes area, St. Louis Co. |
2011-NE-N11 |
2012/C |
3533 |
Yes |
MP |
Expansion of the Savanna Substation in the Floodwood area, St Louis Co., to
230 kV. Initial review indicates this project will reduce loading on other area transmission lines and improve system reliability. A more detailed electric performance and economic analysis will need to be completed to verify that this project is a viable alternative to increasing the capacity of existing transmission lines in the area. |
2011-NE-N12 |
2012/C |
3756 |
No |
MP |
Develop new 115/46 kV substation near Wrenshall, MN, in Carlton Co. This project is needed to improve reliability in eastern Carlton Co. The project will eliminate the need for existing distribution circuits that would otherwise need to be rebuilt due to age and condition and is also a lower cost alternative. |
2011-NE-N13 |
2012/C |
3562 |
Yes |
MP |
230 kV transmission connection to Manitoba, which would be located in
St. Louis, Itasca, Koochiching, Lake of the Woods, & Roseau Co. This project is one of several alternatives being evaluated for delivery of a 250 MW PPA between MP and Manitoba Hydro (see Section 3.3.2). |
6.4.2 Completed Projects
Some inadequacies in the Northeast Zone that were identified in the 2009 Biennial Report were alleviated through the construction and completion of specific projects over the last two years. Information about each of the completed projects is summarized briefly in the table below. More information about these projects and inadequacies can be found in the 2009 Biennial Report. Also, additional information is available by contacting the designated person for the utility that was responsible for constructing the project.
Completed Projects
MPUC Tracking Number |
Utility |
Description |
PUC Docket |
Date Completed |
2003-NE-N3 |
MP/GRE |
Badoura-Long Lake |
CN-05-867TL-07-76 |
November 2009 |
2003-NE-N3 |
MP/GRE |
Badoura-Birch Lake |
CN-05-867TL-07-76 |
October 2010 |
2003-NE-N3 |
MP/GRE |
Badoura-Pine River |
CN-05-867TL-07-76 |
October 2009 |
2003-NE-N3 |
MP/GRE |
Pine River-Pequot Lakes |
CN-05-867TL-07-76 |
December 2010 |
6.5 West Central Zone
6.5.1 Needed Projects
The following table provides a list of transmission needs identified in the West Central Zone by MISO utilities. There were no projects identified in this zone by non-MISO utilities.
MPUC Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2003-WC-N5 |
NA |
NA |
No |
GRE |
Spicer 230/69 kV source. This project has been withdrawn and replaced with a 69 kV project that met multiple needs. |
2003-WC-N7 |
NA |
NA |
Yes |
GRE |
Brownton-McLeod 115 kV line
This project has been delayed indefinitely due to drop in load growth. |
2003-WC-N8 |
NA |
NA |
Yes |
GRE |
Alexandria-West St. Cloud 115 kV line. This project has been delayed indefinitely due to drop in load growth. CapX Fargo-Monticello may alter this project significantly. |
2005-CX-1 |
2008 / A |
286 |
Yes |
CapX |
Add new 345 kV Line between Monticello and Fargo to support the Red River Valley and other growing towns along the Interstate 94 corridor during peak load conditions. This project is located in both the Northwest and West Central zones. PUC Docket Nos. TL-09-1056 and TL-08-1474 |
2005-CX-2 |
2011 / A |
1203 |
Yes |
CapX |
Add new 345 kV line between Brookings, South Dakota, and Southeast corner of Twin Cities. This line is located in the Southwest, West Central, and Twin Cities Zones. PUC Docket No. TL-08-1474. |
2007-WC-N2 |
NA |
NA |
No |
Western Area Power Admin. |
Morris Transformer. No activity due to withdrawal of Big Stone Interconnection. |
2007-WC-N3 |
NA |
NA |
No |
OTP/MRES |
Morris-Grant County 115 kV Line. No activity due to withdrawal of Big Stone interconnection. |
2007-WC-N4 |
NA |
NA |
No |
Various Minn. Utilities |
West Central Minnesota Generation Outlet. No activity due to withdrawal of Big Stone interconnection. |
2009-WC-N1 |
2009 / A |
2158 |
No |
XEL |
Upgrade Sauk Center – Osakis
69 kV line to a lower impedance. |
2009-WX-N3 |
NA |
NA |
No |
XEL |
Rebuild Maynard-Kerkhoven 115 kV line |
2009-WC-N4 |
2010/A |
2564 |
No |
GRE |
Sartell 115 kV distribution substation and 115 kV line |
2009-WC-N5 |
NA |
NA |
No |
GRE |
Watkins 115/69 kV source
This project has been delayed indefinitely due to drop in load growth. |
2009-WC-N6 |
2012/C |
2691 |
No |
GRE |
Orrock 345/115 substation and HWY 10 115 kV lines to Enterprise Park and Liberty. Orrock land is currently being sought. Project will move forward as load grows on HWY 10 corridor between Anoka and Becker. Projects are expected to move within next 5 to 10 years. |
2009-WC-N7 |
NA |
NA |
No |
XEL |
This project is to reconductor an existing 69 kV line to address low voltage along Westport to Lowrey. |
2011-WC-N1 |
2011/A |
3310 |
Yes |
XEL |
This project is to complete the conversion of 69 kV line between Scott County and West Waconia substation to 115 kV. The scope also involves building new West Creek distribution substation and converting the Victoria and Augusta substations to 115 kV and retiring Chaska downtown substation. |
2011-WC-N2 |
2011/A |
3312 |
No |
XEL |
This project is to upgrade the Minn Valley – Maynard – Kerkhoven tap 115 kV line to 795 ACSS conductor |
2011-WC-N3 |
2012/A |
|
No |
XEL |
New 1 mile 69 kV line from Brownton to GRE (Winthrop – Hassen) 69 kV line |
2011-WC-N4 |
C |
2177 |
Yes |
XEL |
Corridor Upgrade: Convert Minn Valley – Panther – McLeod – Blue Lake 230 kV line to Double circuit 345 kV from Hazel to McLeod to West Waconia to Blue Lake. |
2011-WC-N5 |
2009 / A |
2309 |
No |
XEL |
This project is to rebuild 20 miles of 69 kV line from Maple Lake to Watkins in West Central Minnesota |
2011-WC-N6 |
2009 / A |
2308 |
No |
XEL |
This project is to rebuild 13 miles of 69 kV line from Grove Lake switching station to Glenwood to 477 ACSR |
2011-WC-N7 |
2009 / A |
2307 |
No |
XEL |
(1) New 4 mile 115 kV line from St. Cloud tap tap to Mayhew Lake substation.
(2) Convert Benton Co – St. Cloud double circuit to bifurcated line and reterminarte into Mayhew Lake substation
(3) Convert St. Cloud tap to Granite City into bifurcated line (this results in single 115 kV circuit from St. Cloud to Granite City). |
6.5.2 Completed Projects
Some inadequacies in the West Central Zone that were identified in the 2009 Biennial Report were alleviated through the construction and completion of specific projects over the last two years. Information about each of the completed projects is summarized briefly in the table below. More information about these projects and inadequacies can be found in the 2009 Biennial Report. Also, additional information is available by contacting the designated person for the utility that was responsible for constructing the project.
MPUC Tracking Number |
Utility |
Description |
PUC Docket |
Date Completed |
2003-WC-N4 |
XEL |
A 4-mile 115 kV project developed from this project. See 2011-WC-N7. |
NA |
NA |
2003-WC-N9 |
GRE |
Le Sauk Conversion |
Not Required |
March 2010 |
2009-WC-N2 |
XEL |
Douglas County transformer addition |
Not Required |
September 2010 |
2009-WC-N7 |
XEL |
Rebuild 69 kV between Grove Lake and Lawery |
Not Required |
2011 |
6.6 Twin Cities Zone
6.6.1 Needed Projects
The following table provides a list of transmission needs identified in the Twin Cities Zone by MISO utilities. There were no projects identified in this zone by non-MISO utilities.
MPUC Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2003-TC-N1 |
NA |
NA |
No |
XEL |
Upgrade not necessary at this time. |
2003-TC-N10 |
NA |
NA |
NA |
XEL |
Twin Cities 345/115 kV transformer capacity approaching emergency loading levels. No specific project identified. |
2003-TC-N12 |
2005/A |
599 |
No |
GRE |
Crooked Lake-Enterprise Park 115 kV line. PUC Docket No. TL-11-915 |
2005-TC-N7 |
NA |
NA |
No |
XEL |
No specific needs have been identified at this time. |
2005-CX-2 |
2011 / A |
1203 |
Yes |
CapX |
Add new 345 kV line between Brookings, South Dakota, and Southeast corner of Twin Cities. This line is located in the Southwest, West Central, and Twin Cities Zones. PUC Docket No. TL-08-1474. |
2005-CX-3 |
2008 / A |
1024 |
Yes |
CapX |
Add new 345 kV line between Southeast corner of Twin Cities, Rochester, and La Crosse Wisconsin. This line is located in the Twin Cities and Southeast Zones. PUC Docket No. TL-09-1448 |
2007-TC-N1 |
2012/A |
3572-GRE |
Yes |
XEL/
GRE |
Augusta and Victoria conversion.
This project is coordinated with the Xcel Scott County-West Waconia project. PUC Docket Nos. CN-09-1390 and TL-10-249 |
2007-TC-N4 |
NA |
NA |
TBD |
XEL |
Load serving infrastructure investments needed to meet growth in area demand |
2009-TC-N1 |
2010/A |
2570 |
No |
GRE |
Ravenna 161 kV distribution substation. This project has been delayed indefinitely due to drop in load growth. |
2009-TC-N2 |
NA |
NA |
Yes |
GRE |
Glendale-Lake Marion-Helena
115 kV plan. This project has been delayed indefinitely due to drop in load growth. |
2009-TC-N3 |
NA |
NA |
No |
GRE |
Parkwood-Coon Creek second 115 kV circuit. This project has been delayed indefinitely due to drop in load growth. This plan is likely to be withdrawn in favor of the Orrock development to Enterprise Park to address NERC Cat C3 concerns and to provide load growth opportunities between Elk River and Anoka |
2009-TC-N5 |
NA |
NA |
Maybe |
GRE |
Carver County-Assumption-Belle Plaine 115 kV line. This project has been delayed indefinitely due to drop in load growth. Xcel Energy's Sheas Lake project may delay the need of this project, although portions of the line may need to be rebuilt due to age. |
2009-TC-N6 |
NA |
NA |
No |
XEL |
Rebuild 69 kV to 115 kV in cities of Plymouth and Medina. PUC Docket No. TL-11-52 |
2011-TC-N1 |
2011/A |
3314 |
No |
XEL |
This project is to convert the Kohlman Lake - Long Lake 115 kV bifurcated line to double circuit with separate line terminations at Kohlman Lake and Long Lake |
2011-TC-N2 |
2011/A |
3315 |
No |
XEL |
This project is to install a 2nd 345/115 kV transformer at Chisago County |
2011-TC-N3 |
2011/A |
3316 |
No |
XEL |
This project is to upgrade Riverside - Apache line to 360 MVA and upgrade Apache switch to 2000A |
2011-TC-N4 |
2011/A |
3317 |
No |
XEL |
This project is to convert the single circuit line between Goose Lake and Kohlman Lake to double circuit. |
2011-TC-N5 |
2011/A |
3318 |
No |
XEL |
This project replaces some of the 115 kV breakers at Parkers Lake with 63 kA rated breakers. |
2011-TC-N6 |
2011/A |
3321 |
No |
XEL |
This project adds two breakers at Chemolite to insure only one line at a time will be removed from service during a breaker failure. |
2011-TC-N7 |
2011/A |
3325 |
No |
XEL |
This project will move the supply for Orono from its current 69 kV supply to the 115 kV line from Medina to Crow River. |
2011-TC-N8 |
2011/A |
3326 |
No |
XEL |
This line will rebuild the 115 kV line from Black Dog to Savage to 795 ACSS conductor. |
2011-TC-N9 |
2011/A |
3454 |
No |
XEL/
GRE |
This project will upgrade the 69 kV line from GRE’s Medina to Plymouth substations. A new switching station will be added on GRE's 115 kV line between Parkers Lake and Elm Creek north or south of the Plymouth Substation depending on the permitted location. Joint project with GRE P3394 at Medina |
2011-TC-N10 |
2012/A |
|
No |
XEL |
Install 30 MVAR reactor at Kohlman Lake substation |
2011-TC-N11 |
2012/A |
|
No |
XEL |
Install 40 MVAR reactor at Chisago County substation |
2011-TC-N12 |
2012/A |
|
No |
XEL |
Install 30 MVAR reactor at Red Rock substation |
2011-TC-N13 |
2010/B |
3121 |
No |
XEL |
Upgrade 13 miles of 115 kV line between Lake Marion and Burnsville to higher capacity |
2011-TC-N14 |
2009/A |
2772 |
Yes |
XEL |
New 115 kV distribution substation with four terminations tapping the Elliot Park - Southtown line, 1.25 new miles of double circuit 795 SAC to a new 115 kV distribution substation |
2011-TC-N15 |
2008/A |
675 |
Yes |
XEL |
Upgrade 14.3 miles from Westgate-Deephaven-Excelsior-Scott County from 69kV to 115 kV, Uprate 2 miles from Westgate-Eden Prairie 115kV #1 and #2 to 400 MVA. Substation work at Westgate, Deephaven, Excelsior and Scott County. |
2011-TC-N16 |
2009/A |
1952 |
No |
XEL/ GRE |
This project is to add a 10 MVAR cap bank at Plato. This project is required to convert the existing 69 kV line from Young America - Glencoe to 115 kV (part of Glencoe - West Waconia 115 kV line project). |
6.6.2 Completed Projects
Some inadequacies in the Twin Cities Zone that were identified in the 2009 Biennial Report were alleviated through the construction and completion of specific projects over the last two years. Information about each of the completed projects is summarized briefly in the table below. More information about these projects and inadequacies can be found in the 2009 Biennial Report. Also, additional information is available by contacting the designated person for the utility that was responsible for constructing the project.
MPUC Tracking Number |
Utility |
Description |
PUC Docket |
Date Completed |
2003-TC-N4 |
XEL |
Chisago-Apple River project |
TL-06-1677CN-04-1176 |
June 2011 |
2003-TC-N8 |
XEL |
Long Lake – Oakdale – Tanners Lake – Woodbury 115 kV line |
Not required |
November 2008 |
2003-TC-N13 |
Several |
No project resulted following study |
NA |
Withdrawn?
2011 |
2005-TC-N6 |
GRE/ XEL |
Yankee Doodle |
Not Required |
May 2010 |
2007-TC-N3 |
XEL |
New project developed. New 115 kV distribution substation with four terminations tapping the Elliot Park – Southtown line. See 2011-TC-N14. |
CN-10-694, TL-09-38 |
Withdrawn?
2011 |
2009-TC-N1 |
GRE |
Ritter Park |
Not Required |
May 2010 |
2009-TC-N4 |
XEL |
Goose Lake-Lexington 115 kV rebuild. |
Not Required |
2011 |
6.7 Southwest Zone
6.7.1 Needed Projects
The following table provides a list of transmission needs identified in the Southwest Zone.
MPUC Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2005-SW-N1 |
2012/A |
3574 |
No |
GRE/
ITCM |
Worthington-Elk 69 kV rebuild to 115 kV. Upgrade Worthington Area Transformer by replacing existing 161/69 kV transformers at Elk |
2005-CX-2 |
2011 / A |
1203 |
Yes |
CapX |
Add new 345 kV line between Brookings, South Dakota, and Southeast corner of Twin Cities. This line is located in the Southwest, West Central, and Twin Cities Zones. PUC Docket No. TL-08-1474. |
2007-SW-N1 |
B |
1741 |
No |
ITCM |
MISO project G517 Storden Wind Interconnection – Specific upgrades required for project to be determined by MISO Restudy |
2009-SW-N1 |
2009 |
NA |
TBD |
XEL |
Fenton 69 kV Interconnection to serve several towns between Pipestone and Marshall. |
2009-SW-N2 |
NA |
NA |
No |
GRE |
Lismore conversion to 115 kV
This project has been delayed indefinitely due to drop in load growth and distribution cooperative prefers to be served from 24 kV system. |
2009-SW-N3 |
2011/B |
3213 |
No |
ITCM |
Lakefield Adams 345 kV system upgrade |
2009-SW-N4 |
2010/A |
2167 |
No |
SMP |
Redwood Falls Area Load Serving 115kV Project |
2011-SW-N1 |
2011/A |
1203 |
Yes |
XEL/ GRE |
Construct Brookings Cty-Lyon Cty (Single Ckt 345 kV); Lyon Cty-Cedar Mountain-Helena (Double Ckt 345 kV); Helena-Lake Marion-Hampton Corner (Single Ckt 345 kV); Lyon Cty-Hazel (Single Ckt 345 kV); Hazel-Minnesota Valley (Single Ckt 345 kV, initially operate at 230 kV); Cedar Mountain-Franklin (Single Ckt 115 kV). Install 345/115 kV transformers at Lyon County, Cedar Mountain, and Chub Lake. Install two 115/69 kV transformers at Franklin substation. |
2011-SW-N2 |
2011/A |
3309 |
No |
XEL |
Upgrade the wave traps and line switches at Buffalo Ridge to 2000 A going to Lake Yankton and Pipestone. Retap the Pipestone CTs to 2000 A going to Buffalo Ridge. |
2011-SW-N3 |
2011/A |
3319 |
No |
XEL |
This project replaces some of the 115 kV breakers at Split Rock with 63 kA rated breakers. |
2011-SW-N4 |
2011/A |
3320 |
No |
XEL |
This project is needed to replace the failed 50 MVAR Split Rock reactor and associated breaker. |
2011-SW-N5 |
2010/A |
2767 |
No |
XEL |
This project is to install a new 115/69 kV transformer at Fenton substation. Break the existing 69 kV line between Chandler Tap and Lake Wilson to create an in and out to the Fenton substation. |
2011-SW-N6 |
B |
2107 |
No |
XEL |
G520: Network upgrades: Install new 3-position 115 kV substations (tapping Lake Yankton - Lyon County 115 kV line) with breakers, switches, buswork, steel, foundations, control house and associated equipment. Install new loop in-and-out tap, 3.5 miles of double circuit, 115 kV transmission line. |
2011-SW-N7 |
B |
2115 |
No |
XEL |
G491: One new 120 MVA, 118-36.2 kV transformer, three new 115 kV breakers and associated disconnect switches, one new 34.5 kV transformer low side main breaker and associated disconnect switches, control house expansion, structural steel and foundations associated with this new equipment, control and protection equipment associated with these new installations. |
2011-SW-N8 |
2006/A |
1458 |
No |
XEL |
G349 Upgrades: Located in Southwestern Minnesota around the Buffalo Ridge area. Upgrades to Yankee substation, Brookings Co 345/115 substation, Hazel Creek
53 MVAR capacitor, Brookings-Yankee
115 kV line. |
2011-SW-N9 |
2008/A |
2108 |
No |
ITCM |
New 161 kV switching station in Faribault Co. on the Winnebago to Winnco 161 line to provide interconnection facilities for MISO Project G358. |
2011-SW-N10 |
2009/A |
2156 |
No |
XEL |
1) New 345/115/69 kV Sheas Lake substation between Wilmarth and proposed Helena substation.
2) One mile of 69 kV double circuit to connect the existing LeSueure 69 kV lines into proposed Sheas Lake substation |
2011-SW-N11 |
B |
3099 |
No |
XEL |
Upgrade Franklin 115/69 kV Xfrmr 1 and 2 to 112 MVA as part of the CapX underlying system upgrade |
6.7.2 Completed Projects
Some inadequacies in the Southwest Zone that were identified in the 2009 Biennial Report were alleviated through the construction and completion of specific projects over the last two years. Information about each of the completed projects is summarized briefly in the table below. More information about these projects and inadequacies can be found in the 2009 Biennial Report. Also, additional information is available by contacting the designated person for the utility that was responsible for constructing the project.
MPUC Tracking Number |
Utility |
Description |
PUC Docket |
Date Completed |
2003-SW-N2 |
GRE |
St. James area (Storden-Dotson-New Ulm 115 kV line). This project has been withdrawn due to load not being developed. |
Not required |
Withdrawn |
2007-SW-N2 |
GRE |
Dotson Area load serving needs. This project has been withdrawn due to load not being developed. |
Not required |
Withdrawn |
2007-SW-N3 |
XEL |
Fort Ridgely – West New Ulm 115 kV line and new West Ulm Substation |
E002, TL-08-956 |
March 2011 |
6.8 Southeast Zone
6.8.1 Needed Projects
The following table provides a list of transmission needs identified in the Southeast Zone by MISO utilities. There were no projects identified in this zone by non-MISO utilities.
MPUC Tracking Number |
MTEP Year/App |
MTEP Project Number |
CON? |
Utility |
Description |
2005-SE-N4 |
NA |
NA |
TBD |
XEL |
Additional outlet for possible future wind generation |
2005-CX-3 |
2008 / A |
1024 |
Yes |
CapX |
Add new 345 kV line between Southeast corner of Twin Cities, Rochester, and La Crosse Wisconsin. This line is located in the Twin Cities and Southeast Zones. PUC Docket No. TL-09-1448 |
2007-SE-N3 |
2009 |
2156 |
No |
XEL |
1) New 345/115/69 kV Sheas Lake substation between Wilmarth and Proposed Helena substation. 2) 1 mile of 69kV double circuit to connect the existing LeSueure 69kV lines into proposed Sheas Lake substation. |
2009-SE-N2 |
NA |
NA |
Yes |
GRE |
St. Clair-Loon Lake 115 kV line
This project has been delayed indefinitely due to drop in load growth. |
2009-SE-N5 |
2010/A |
2166 |
No |
SMP |
St Peter Area Load Serving 69kV Project |
2011-SE-N1 |
2011/A |
3313 |
No |
XEL |
This project is to install a 69 kV 1 way switch to provide SMMPA's New Prague substation a new interconnection point. The existing interconnection would require cutting the line jumpers when the New Prague - Veslie line is out of service. |
2011-SE-N2 |
2011/A |
3474 |
No |
XEL |
Installing a 50 MVAR reactor at Adams substation on the Pleasant Valley line, along with a breaker and disconnect switch |
2011-SE-N3 |
|
|
No |
SMP |
Austin MN Area Load Serving 161/69kV Substation Expect ISD June 2013. Not yet in MTEP. |
2011-SE-N4 |
B |
3195 |
No |
ITCM |
Upgrade Freeborn to Hayward 161 kV for MISO project G870 |
2011-SE-N5 |
2012/A |
|
No |
XEL |
Re-build 13 miles of 69 kV line from Arlington – Green Isle |
2011-SE-N6 |
2012/A |
|
No |
XEL |
New 5.4 MVAR capacitor bank at Crystal Foods |
2011-SE-N7 |
2008/A |
1024 |
Yes |
XEL/
SMP/ Non-MISO |
Construct Hampton Corner-North Rochester-Chester-North Lacrosse 345 kV line. Add North Rochester - N. Hills 161 kV line. Add North Rochester-Chester 161 kV line. Add 345/161 kV transformers at Hampton Corner, North Rochester, and North Lacrosse. |
2011-SE-N8 |
2009/A |
2178 |
Yes |
XEL |
G362 Network upgrades: New 161 kV line from Pleasant Valley - Byron 161 kV line |
6.8.2 Completed Projects
Some inadequacies in the Southeast Zone that were identified in the 2009 Biennial Report were alleviated through the construction and completion of specific projects over the last two years. Information about each of the completed projects is summarized briefly in the table below. More information about these projects and inadequacies can be found in the 2009 Biennial Report. Also, additional information is available by contacting the designated person for the utility that was responsible for constructing the project.
MPUC Tracking Number |
Utility |
Description |
PUC Docket |
Date Completed |
2003-SE-N1 |
XEL |
This project became the CapX2020 project listed in this report as 2011-TC-N14 |
TBD |
TBD |
2003-SE-N3 |
XEL |
City of Mankato – 115-kV Loop project |
E002,ET2-TL-08-734 |
May 2009 |
2005-SE-N5 |
ITCM |
Mower County Wind Upgrades to 161 kV at Adams |
Not required |
February 2010 |
2007-SE-N1 |
DPC |
Rochester-Adams 161 kV Line
Reconductor 36.7 miles with 795 ACSS conductor |
Not required |
November 2009 |
2007-SE-N2 |
XEL |
Grand Meadow Wind Interconnection project |
IP6646-WS-07-839 |
June 2009 |
2007-SE-N4 |
ITCM |
Wind Generation Upgrades – Freeborn and Mower Counties – Completed 2010 |
Not required |
December 2010 |
2009-SE-N1 |
DPC |
Harmony-Beaver Creek 161 kV Line. Reconductor 20.5 miles of 161 kV line with 795 ACSS conductor. |
Not required |
February 2010 |
2009-SE-N3 |
ITC |
No action necessary. |
Not required |
2011 |
2009-SE-N4 |
SMP |
Byron to Rochester Westside 161 kV line addition |
Not required |
2010 |
|
