| Northeast
Zone
Includes
Aitkin, Carlton, Cass, Cook, Crow Wing, Isanti, Itasca, Hubbard,
Kanabec, Koochiching, Lake, Mille Lacs, Morrison, Pine, St.
Louis, Todd and Wadena counties.
Detailed
Northeast Planning Zone Map (PDF)
Issues specific to this zone
Biennial Transmission Planning
Webcasts
Every two years, Minnesota utilities host webcasts to inform
the public about electric transmission needs in the state.
Below are links to the presentation delivered on electric
transmission planning in Minnesota and electric transmission
projects in the Northeast Zone. The presentation was delivered
via webcast in September 2009.
Cromwell-Wrenshall-Mahtowa Area
- Improvements needed for local load serving
- Low voltage for loss of Thompson source
- Studies underway to determine best method to address
this inadequacy
- Options include 115-kV transmission and local area generation
- The transmission option may also provide
a benefit to the issues Great River Energy is having in
the Floodwood area
Central Lakes Area
- Facility overloading occurs on the Minnesota Power 115-kV
system that serves the Brainerd substation
- Need a 115-kV line connection between Southdale and
the Minnesota Power 24 Line (Baxter-Dog Lake)
- This connection will improve transmission
reliability to Southdale and Brainerd substations by adding
a third source to the region
Pierz-Genola Area
- Contingency conditions will result in
low voltage and facility overloading
- The future plans call for a new 115-kV
line to Little Falls from the Pierz area where a 230/1150-kV
source will be located
- Present plans would be to build the
line and operate at 34.5-kV
- Great River Energy is also considering
to shorting the line in the short-term by moving the Crow
Wing Power Little Falls substation to 115-kV
Taconite Harbor
to Grand Marais
- The existing 69-kV system in a long
radial line where loss of the lines leads to potentially
long outages
- Great River Energy will install a small
generation plant to provide backup service to this area
Mille Lacs Area
- The existing transmission system in
this area has already become limited in service where low
voltages are already forecasted during contingencies on
peak loads
- Facility overloads are expected in the
next 10 years
- The proposed alternative is a new Mud
Lake-Wilson Lake 115-kV line and Wilson Lake 115/69-kV
source in 2008
- Great River Energy filed a certificate
of need and route permit in July, 2006 to the MN PUC
Floodwood Area
- It is projected that by 2012, contingency conditions
will result in low voltage
- Facility overloads at a later time
- Proposed alternative is a new 115/69-kV substation in
the Floodwood area
- Great River Energy and Minnesota Power
coordinating study with Wrenshall and Mahtowa
area study
Nashwauk
Area
- Low voltages and facility overloading can occur during
system intact conditions
- Two alternatives are being reviewed
- Alternative 1 is a new substation at Shoal Lake
- Alternative 2 is a new substation at Lawrence Lake
- Lawrence Lake is the preferred option
as the substation is located closer to the load center
Bemidji-Grand
Rapids 230-kilovolt transmission line
- The Bemidji and Cass lake area electric
load will soon reach levels that will make its electric
system susceptible to brown-outs or black-outs without
the construction of another 230-kV line
- This proposed project will provide increased
voltage support not only to the Bemidji and Cass Lake area,
but also throughout the Red River Valley and north central
Minnesota.
- CapX2020 planning efforts
also identified the Bemidji-Grand Rapids line as one of
four lines needed in the first group of projects to improve
regional transmission system reliability
Other Projects
Mesaba Energy Project Outlet Transmission
- Generator outlet (GO) transmission is necessary to deliver
the plant output to the Minnesota Power transmission network
at either the Forbes or Blackberry 230-kV Substations
- The proposed GO transmission lines involve the construction
of two 345-kV circuits but operated at 230-kilovolt for
the first unit
- The application for the plant site selection and the
GO transmission routings was accepted by the MN PUC as
complete on July 28, 2006
- The Large Generator Interconnection Agreements covering
the required Network Upgrades and Interconnection Facilities
for both the proposed sites have been completed and executed
by MISO, Minnesota Power and Excelsior Energy.
- For the preferred West Range site, a new 80 mile 230kV
line from Boswell-Riverton is required in addition to the
normal Point of Interconnection substation modifications.
- Expect the draft EIS to be issued around Labor Day and
the public hearings to follow.
- Expect site/GO line public hearings
to start in September 2007 and a final MN PUC ruling by
March-April, 2007.
Transmission to serve Minnesota Steel
Industries
- Transmission will be needed to supply possible new mining/steel
making facility proposed to be located near Nashwauk Minnesota
- Transmission construction would
involve development of 230 kV lines to connect facility
to area’s
transmission system
- Route Permit expected to be filed 2007
- Transmission construction would proceed
only if Minnesota Steel Industries project proceeds
Project
Updates
Tower-Ely-Babbitt Area Tracking
# 2003-NE-N1
- Certificate of need and route permit have been obtained
- Right-of-way acquisition and construction
to start fall 2007
- Project expected to be complete November
2009
Pequot Lakes-Badoura Area and Long Lake-Badoura
Area Tracking # 2003-NE-N3 and 2005-NE-N1
- Certificate
of need issued June 2006
- Route permit application submitted March 2007
- Right-of-way acquisition and construction expected to
start late fall 2007 if permit obtained
- Project expected to be complete Spring 2010
Swanville area
- Permit for Pepin Lake Substation approved
- Substation Construction to start Fall 2007
- Project expected to be complete Fall 2008
Two Harbors area
- Permit for 115 kV Substation approved
- Substation Construction to start Fall 2007
- Project expected to be complete November 2008
Contact
us:
Additional
comments or questions may be submitted by using the “Contact
Us” link at the top of this web page.
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