10-Year Transmission System Assessment

Transcription

10-Year
Transmission
System
Assessment
Helping to keep the lights on,
businesses running
and communities strong®
www.atc10yearplan.com
2011 Summary Report
September 2011
Economics, public policy increasingly influence
Mandatory reliability
standards, renewable
portfolio requirements
affect plans
While reliably meeting the needs of electricity customers is the top
priority for any transmission owner, market economics and public policy
initiatives are playing a major role in how utilities plan for their system
needs. Traditionally, transmission owners performed planning studies and
analysis for their individual needs; today, however, while local reliability
remains the responsibility of the owner, the trend is toward broaderbased planning driven by regional transmission organizations, government
agencies and electricity market economics.
Changing the way transmission system costs are allocated also affects the planning as well as permitting for system improvements.
Regional planning initiatives increasingly focus on projects that provide additional benefits beyond local-area reliability. These multibenefit, or Multi-Value Projects (as defined by Midwest Independent System Operator, Inc.), also include economic savings and the
ability to move renewable energy from where it is generated to where it can be used. As these projects are identified, regulators
from multiple states will need to work together to determine cost sharing as well as permitting. We are working diligently with all
stakeholders to design an incremental regional build-out of these projects to move forward efficiently and cost-effectively.
Three 345-kilovolt projects that MISO is considering for Multi-Value Project cost sharing were presented in the 2010
10-Year Assessment. These projects are the Badger Coulee, Dubuque-Spring Green-Cardinal and Pleasant Prairie (Bain)-Zion
Energy Center projects. For an update, go to page 6.
Enforceable, mandatory reliability standards, developed by the North American Electric Reliability Corp. and approved by the Federal
Energy Regulatory Commission in 2007, also play a role in how we plan, operate and maintain our system. Earlier this year, NERC
Cost trends
The total cost trends of the last five assessments and updates are as follows:
2007200820092010 2011
Specific Network Projects $1.4B$1.3B$1.0B$1.0B
$1.0B
Regional Multi-Value Projects
$0.0B$0.0B$0.0B$0.7B
$0.7B
Asset Maintenance
$0.4B$0.5B$0.7B$0.7B
$1.0B
Other Capital Categories
$1.0B$0.9B$0.8B$1.0B
$1.1B/$1.7B
Total 10-Year Capital Cost $2.8B$2.7B$2.5B$3.4B
$3.8B/$4.4B
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transmission planning
issued a set of high-priority reliability issues to help the industry focus on standards setting, compliance, training and education.
Several of those priorities, including a changing resource mix and the integration of new technologies, will impact the way we plan
and operate our system.
Our planning process also is affected by pending Environmental Protection Agency regulations for electric generators and the recently
issued FERC Order 1000 governing regional planning, public policy requirements and cost allocation. These issues, along with the
internal identification of a new credible contingency scenario, have caused us to undertake a study on transmission reinforcements
in northern Wisconsin and the Upper Peninsula. Later this year, we expect to identify a Northern Plan, some preliminary packages
of projects that coordinate with the existing northeast Wisconsin and Upper Peninsula projects to address generation changes,
load changes and developing transmission contingency concerns. As the EPA rules become clearer, additional studies may be
undertaken to explore these need drivers in other areas of our service territory.
The 2011 Assessment covers the years 2011 through 2020 and indicates a need for $3.8 to $4.4 billion in transmission system
improvements. The total includes $1.0 billion in specific network projects, $1.0 billion in asset maintenance, $0.7 billion in
multi-benefits projects, and this year a range of $1.1 to $1.7 billion in other capital categories. Other capital categories can include
developing projects (i.e. Northern Plan), or unspecified network projects, interconnection projects and infrastructure relocation.
The planning zone summaries included in this report detail specific projects identified to improve reliability, access to the market and
renewable energy resources. A more comprehensive listing of these plans is available at our website www.atc10yearplan.com.
Paul Jett
Director of Strategic Projects
Jeff Gillen
Director of System Planning
Mark Davis
Director of Asset Management
2011 ATC 10-Year Assessment
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Regional planning involves large-scale projects and
MISO MVP Candidates Study – Late last year, FERC conditionally approved a new cost-allocation methodology
for proposals within MISO that are deemed “Multi-Value Projects.” The methodology would spread the cost of the MVPs across
the entire MISO region, with ATC customers paying about 10 to 15 percent of the project’s cost. A task team is reviewing
17 such projects, including three ATC proposals. (See page 6 for more specific information.)
To qualify as an MVP, a project must meet one or more of these criteria:

Reliably and economically enable regional public policy needs

Provide multiple types of regional economic value

Provide a combination of regional reliability and economic value
FERC Order 1000
FERC has recently issued an order that will have a significant impact on how transmission is planned and built in the U.S.
The order impacts the way transmission is planned by requiring Regional Transmission Organizations to plan for public policy
requirements such as Renewable Portfolio Standards and EPA regulations, and to coordinate their planning with their neighboring
RTOs and other transmission providers. The order requires every RTO to have a regional cost-allocation method for regional and
inter-regional projects. The order also opens the door to more competition in building regional, cost-shared transmission projects
although state and local laws regarding transmission construction are not affected.
Federal priorities
In addition to creating reliability based standards, NERC has established a number of priorities for 2011. Integration of new
technologies is one of the major priorities we are working on. We signed an agreement with the U.S. Department of Energy
in 2010 for smart grid investment grants. A number of phasor measurement units have been installed on our system with a
$1.3 million grant. This smart grid technology helps us perform more detailed analysis of the system during events. An additional
$11.4 million grant is being used to extend fiber optic communication infrastructure. Both projects are on schedule.
Another NERC priority is to address a changing resource mix. Energy and environmental policies along with energy markets are
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multiple stakeholders
driving proposals toward unprecedented changes in the resource mix
of the bulk power system. We are currently studying potential system
impacts and initial results indicate reliability impacts that must be
considered in the future.
Cyber security is also a NERC priority and under increasing FERC
scrutiny. We are participating in the NERC standards process to
help anticipate the future impacts of these changes on our planning
processes and systems.
Energy and environmental
policies along with energy
markets are driving
unprecedented changes
in the resource mix of the
bulk power system.
Eastern Interconnection Planning Collaborative – A group of 27 Planning Authorities is working with
the DOE to develop conceptual interconnection-wide transmission plans. The collaborative has reached consensus on eight
“resource expansion futures” that will guide the first, fully coordinated transmission planning exercise across the entire
interconnection. An interim report is scheduled by the end of 2011. The second phase of the project will include the development
of a transmission build-out to support each of three resource scenarios selected by stakeholders; a final project report is due
to DOE by the end of 2012.
Western Wisconsin Reliability Study – In cooperation with Xcel Energy; Dairyland Power Cooperative; Great River
Energy; International Transmission Co., Midwest; and Southern Minnesota Municipal Power Agency, ATC led a study of reliability
needs and transmission options in western Wisconsin. Modeling, coordinated with MISO, showed many reliability needs in the
region would be partially solved by 345-kV solutions in western Wisconsin.
South Lake Michigan Congestion Study – Market congestion issues impacting southeastern Wisconsin are part
of a larger regional market congestion issue that extends south of Lake Michigan into Illinois and Indiana. We have worked with
MISO and other stakeholders to identify short-, medium- and long-term solutions. For more information, please refer to the
Pleasant Prairie-Zion Energy Center 345-kV project on page 8.
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Emerging projects update
In last year’s Assessment, we introduced three emerging projects that provided
benefits beyond local-area reliability. The projects are in various stages of development.
Badger Coulee project launched to enhance regional reliability,
deliver renewable energy and provide economic savings
We began public outreach for the Badger Coulee Project in 2010, and shared with local stakeholders the potential corridors
for the 150-mile, 345-kV line between the La Crosse and northern Dane County areas.
Our studies indicate that this is a multi-benefit project that would deliver benefits to Wisconsin and the Midwest region
in three important ways:
Improve electric system reliability locally and regionally
 Better enable Wisconsin to import power

Offset the need for approximately $180 million ($140 million in the ATC service area) in lower-voltage
upgrades in western Wisconsin communities
 Alleviate regional transmission grid stability issues
Deliver economic savings for Wisconsin utilities and electric consumers

Provide utilities with greater access to the wholesale electricity market with potential savings that can be
passed on to electric consumers

Improve efficiency of the grid; more efficient grid reduces the cost to deliver energy

Connect to high-quality renewable resources in the nation’s western wind alley, which translates into
hundreds of millions of dollars in potential savings

Could provide $75 million to $560 million in energy cost savings to ATC customers over the life of the project,
depending on the future studied (preliminary analysis)
Expand infrastructure to support public policy for greater use of renewables

Establish another pathway for renewable energy into Wisconsin with connections to key load centers

Match regional studies (Strategic Midwest Area Transmission Study and MISO Regional Generation Outlet Study)
evaluating transmission options that best deliver renewable energy while also addressing reliability issues

Could provide $50 million to $340 million in potential renewable investment savings to ATC customers over
the life of the project depending on the future studied (preliminary analysis)
Badger Coulee has been identified as a Candidate Multi-Value Project by MISO, eligible for cost-sharing across the region.
If the project is deemed an MVP by MISO, preliminary studies show the project will show a net benefit to our customers in all
six futures studied. If the project is not deemed an MVP, the project will show a net benefit in five of six futures studied.
ATC anticipates filing an application with the Public Service Commission of Wisconsin in 2013.
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7
Dubuque-Spring Green-Cardinal 345-kV Project shows regional benefits
We continue to study the benefits of a 345-kV line linking the Dubuque, Iowa area to the Madison, Wis. area. We have examined
six different future scenarios, and if deemed a Multi-Value Project, the analysis shows that this line would provide benefits that
exceed the cost in all six futures. If deemed a stand-alone ATC project, benefits exceed costs in four of the six futures. If both the
Badger Coulee and Dubuque-Spring Green-Cardinal projects are determined to be eligible for regional cost-sharing, the benefits
of the combination exceed costs in all six scenarios.
Dubuque-Spring Green-Cardinal is being studied as a Candidate MVP by MISO. The MISO board will approve selected projects
in December 2011.
Pleasant Prairie-Zion Energy Center would facilitate regional access
and alleviate congestion in three states
Transmission system congestion issues in southeastern Wisconsin are part of a larger, regional market congestion around the
southern tip of Lake Michigan. This proposed, six-mile, 345-kV line between Pleasant Prairie, Wis., and Zion, Ill., will help solve
some of those issues, providing regional benefits:
Provide savings for electric utilities and their customers
H
elps relieve transmission system congestion throughout the region and enables the most efficient generators
to supply power to the energy market
Allows utilities to buy and sell power when it’s economic to do so
Improve electric system reliability, locally and regionally
A
dds an additional high-voltage line to strengthen the interstate transmission connection between
Wisconsin and Illinois
A
llows for better regional access to emergency sources of power generation
Public outreach for the project was initiated in Spring 2011 and construction applications are anticipated to be filed with regulators
in Wisconsin and Illinois by the end of the year.
Pleasant Prairie-Zion Energy Center is being studied as a Candidate MVP by MISO.
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Barnhart-Branch River Electric Reliability Project addresses equipment upgrade
Also introduced as an emerging project in the 2010 Assessment, the Barnhart-Branch River project is being proposed to address equipment modifications and an associated increase in generating capacity at the Point Beach Nuclear Plant in Manitowoc County, Wis.
Public outreach began in 2011 to introduce the project to area residents, local officials and other stakeholders. The project includes
two new substations and associated transmission lines.

Substations
Two new substations are required. The Branch River Switching Station would be constructed in Manitowoc County and the
Barnhart Substation would be constructed in Sheboygan County.

Transmission lines
Options include:
Converting a 345-/138-kV double-circuit line that runs about 51 miles in Manitowoc, Calumet and Sheboygan counties
to a double-circuit 345-kV line that will connect the new substations, and constructing a new, 18-mile, 138-kV line in
Sheboygan County or
Constructing a new 345-kV line that links the Branch River and Barnhart facilities (about 40 miles).
Potential corridor options for the transmission lines were presented at open houses in summer 2011. Feedback from the public
and other data collection activities are underway in anticipation of filing a construction application in fall 2012. If approved,
construction would begin in fall 2016, with a 2018 in-service date.
Straits Flow Control Project would aid Upper Michigan reliability
Despite significant upgrades to transmission infrastructure in the Upper Peninsula of Michigan in recent years, operational challenges
remain due to the delicate balance that exists between generation, load, market flows and transmission.
A back-to-back, high-voltage, direct-current flow control project is being implemented near the Straits Substation in St. Ignace, Mich.
The innovative, $90 million project will enable the flows into and out of the U.P. to be controlled by MISO, maintaining appropriate
thermal and voltage levels on the system in the peninsula. Approved by the MISO board of directors in June 2011, the project will be
cost-shared as a baseline reliability project.
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Our progress
When we began operations in 2001, our system had only four high-voltage interconnections with neighboring states. The other
states had between 10 and 18 connections. Our lone connection to Minnesota was the second-most congested transmission
line in the country. Energizing the Arrowhead-Weston 345-kV line in 2008 – our second connection to Minnesota – greatly eased
the constraints on the Arpin-Eau Claire-King transmission line. An additional 345-kV circuit to Illinois has also strengthened the
backbone of our system.
By 2010, however, system flows on the two lines to Minnesota imported power into Wisconsin 92 percent of the time, and the
Arpin-Eau Claire line once again has become a seriously congested line. The ties to Minnesota are but one example of the dynamic
nature of operating a transmission system and the need for continuous analysis and planning. Our $2.5 billion in investment since
2001 has created one of the most reliable transmission systems in the country. The investment has saved our customers more than
$200 million in reduced energy costs.
Transmission costs and economic benefits
Our customers – distribution utilities, independent power producers and power marketers – pay us through MISO for transmission
delivery service. Our rates are set by the Federal Energy Regulatory Commission.
Retail consumers pay for the generation, transmission and distribution of electricity, plus fuel costs, through a regulated utility
rate. In our service area, transmission cost is the smallest component of a retail customer’s electric bill, about 10 or 11 percent.
Generation and fuel costs make up the major portion, followed by distribution infrastructure.
Transmission construction provides direct and indirect economic benefits to communities in the form of labor, goods and materials,
housing, food and other services. A recent study shows that $1 billion invested in transmission supports about 13,000 jobs and
$2.4 billion in economic activity.
Asset renewal
Our asset management personnel work closely with system planning staff to maintain and improve system reliability. Focused
on life-cycle management of our transmission system, asset renewal is the “replacement strategy” of the asset life cycle. Asset
renewal is driven by public and worker safety, regulatory compliance, reliability performance and environmental stewardship.
Despite challenging weather in 2010, we continued to experience top-tier reliability performance. We participate in the
SGS Transmission Reliability Benchmarking program with 26 other operators that represent nearly half of the nation’s grid.
In 2010, our 345-, 138- and 115-kV lines performed in the top 10 percent. We continue to refine our asset management system,
including a comprehensive forced outage reduction program, which is one of several processes that direct targeted investments
to meet reliability objectives. In addition, our asset planning and engineering staff provide progressive renewal and maintenance
programs for oversight of those assets at or near their end of life.
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Major accomplishments to date
Since we were formed in 2001 as a utility solely focused on
electric transmission, we have:
 upgraded more than 1,700 miles of transmission line,
 improved 140 electric substations and
 built 40 new transmission lines (540 miles).
A more reliable transmission system has enabled us to:
meet peak demand during an exceptionally hot summer
in 2011 with no customer interruption,
reliably deliver electricity to customers in Wisconsin,
Michigan, and Illinois at all hours of the year including
peak demand hours,
 maintain top reliability performance,
support approximately 1,100 MW of new peak
electric usage,
 connect 5,711 MW of new generation at 21 sites,
increase the ability of our system to import power
by 750 MW,
reduce energy losses over the 40-year lives of our
completed projects at a level that equates to:
– 15-19 million megawatt hours of electricity saved
(enough to power 36,000 – 45,500 homes each year)
– 10-14 million tons of CO2 emissions (associated with
producing lost energy) eliminated,
– avert the need for a 124-154 megawatt generating plant
to serve peak demand,

resolve problems in 18 specific areas to move power into or
through our system.
– Arrowhead-Weston (Northwestern Wisconsin)
– Blackhawk-Colley Road (Rock County)
– Christiana-Kegonsa (Dane County)
– Cranberry-Conover-Plains (Northern Wisconsin
and Upper Peninsula of Michigan)
– Eau Claire-Arpin (Wood County)
– Gardner Park-Central Wisconsin
(Marathon and Shawano counties)
– Kewaunee (Kewaunee County)
– Manistique-Hiawatha (Schoolcraft and Mackinac
Mich. counties)
– Morgan-Werner West (Shawano, Waupaca,
Outagamie and Oconto counties)
– North Madison-Huiskamp (Dane County)
– North Appleton-Lost Dauphin
(Outagamie and Brown counties)
– North Appleton-White Clay
(Outagamie and Shawano counties)
– Paddock-Rockdale (Dane and Rock counties)
– Paris-St. Martins (Kenosha, Racine and
Milwaukee counties)
– Plains-Stiles (Oconto, Marinette, Menominee, Wis.,
and Dickinson, Mich. counties)
– Rhinelander area (Lincoln, Oneida and Langlade
counties)
– Wempletown-Paddock
(Rock County and northern Illinois)
– Whitewater-Mukwonago
(Walworth and Waukesha counties)
We have made progress by actively seeking input and making
our plans and proposals public. To date, ATC has:

produced and issued 16 transmission system
assessments to the public,

held dozens of major public planning and siting
meetings, and

participated in thousands of interactive local, state
and industry discussions, both giving and receiving
information to carry out our duties and responsibilities.
Duke-American Transmission Co. (DATC)
Building on more than 10 years of success, we are looking for
opportunities to grow our company beyond our current service
area in the Upper Midwest. Earlier this year, we formed
a partnership with Duke Energy in a joint venture to build,
own and operate new electric
transmission infrastructure in
North America. The Duke-American
Transmission Co. planning team, comprised of transmission
planners from both companies, recently proposed a $4 billion
package of seven transmission line projects in five Midwestern
states. These projects will provide additional economic,
reliability, and public policy benefits to consumers. Thoughtful,
well-designed transmission projects will afford customers,
regulators and other stakeholders flexibility in determining
which energy resources will help meet demand for electricity
in the future. As such, they will serve as a springboard for
next-generation energy technologies. For more information,
please visit www.datcllc.com.
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What technical considerations drive the need for
Economics – We evaluate the impact of transmission congestion on wholesale power prices and study projects to determine
economic savings to offset most or all of the congestion and loss costs. An example is evaluating increased access to markets
outside our service area.
Solution: Three projects have been completed, two are proposed, and another provisional project is being studied.
Renewables/Public Policy – All of the states in which we operate and most other Midwestern states have adopted
renewable portfolio standards. A national requirement also is being considered.
Solution: We are participating in several regional transmission studies to identify the transmission needed to integrate
renewable generation, including wind, much of which could be located in areas remote from large load centers.
Load growth – Demand for electricity during peak usage periods is projected to grow at a rate of approximately
1.1 percent across our service territory from 2012 through 2021.
Solution: More than 77 projects are planned for assuring reliability at least in part due to load growth.
Distribution interconnections – The transmission system is dynamic; changes in the marketplace,
as well as changes in generation – new plants coming on line, older units being retired – drive the need for additional
transmission-to-distribution interconnections.
Solution: 125 are planned in the next 10 years.
More than 275 new or improved T-D interconnections have been made since 2001.
New generation – When a new generating facility is proposed, we conduct a system impact study and, if requested,
a facilities study. If the existing transmission system is inadequate to ensure generator stability or reliable transmission service,
we will determine what system expansion will be needed.
Solution: 19 generators are active in our generation queue, and many reflect the growing development of wind energy.
21 generators added since 2001 required construction of transmission facilities.
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transmission expansion?
Asset renewal – Keeping transmission lines, substations and related equipment in good operating condition extends the
life of the facilities, improves system performance and safety, and minimizes the potential for outages. Part of the $4.0 billion
investment ATC will make over the next 10 years is dedicated to asset renewal. Major projects at substations include replacing
circuit breakers, protective relays, lightning protection and transformers. Major work on transmission lines involves rebuilding or
upgrading aging power lines, including the replacement of structures, conductors, insulators and other equipment.
Solution: More than 100 projects to address asset renewal needs are planned in the next 10 years.
Transmission service requests – Virtually all entities that own power plants or provide electric service to customers,
or both, seek to buy and sell electricity with other entities. We evaluate those requests to determine whether the transmission
system will operate reliably if the request is granted. If the request can’t immediately be granted, we will identify transmission
system reinforcements needed to grant the request.
Solution: More than 35 projects to meet transmission service requests have been completed since 2001.
Generator retirements – Similar to new generator requests, when a large generator is retired due to age or other
reasons, we will determine how system requirements will be affected. Recently issued Environmental Protection Agency
rules will impact retirements across the U.S. in the next 5 to 10 years.
Solution: Generation uncertainties are growing due to proposed EPA regulations. We are working closely with generation
owners and MISO to anticipate reliability impacts to our transmission system.
Regulatory environment – Physical and cyber security and reliability standards continue to increase, which affect
planning criteria.
Solution: We are participating in the NERC standards process to help anticipate the future impacts of these changes on our
planning processes and systems.
Integration of new technologies – Demand-side management, variable generation, distributed resources and smart
grid technologies all require changes in how the grid is planned and operated to maintain reliability.
Solution: The type of flow-control device between Upper and Lower Michigan will be one of few utilized in the U.S.
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Environmental commitment guides work practices
Winter construction,
mats and ice roads
help minimize
impacts.
We recognize that our construction and maintenance work may impact the
environment. We take our commitment to environmental protection and
stewardship seriously. Our goal is to avoid making impacts where we can,
minimize those that can’t be avoided, and restore the environment after
the work is done. In some instances, we can improve conditions.
We adhere to local, state and federal laws regulating the construction or
rebuilding of transmission lines. We obtain permits required to work in
environmentally sensitive areas and use prescribed construction methods
to comply with permit requirements and reduce our impacts.
To create stable working areas and protect environmentally sensitive areas, we make use of protective construction mats to
support heavy equipment. We often perform construction during winter months when the ground is frozen to minimize disturbance
to soils and sensitive plant and animal life. Winter construction also allows for use of ice roads as an alternative to construction
mats. Ice roads are constructed by removing the top, or insulating, layer of snow, then running equipment back and forth to
effectively drive frost into the soil to create a stable road.
Ice roads are an efficient and effective alternative to construction mats in wetland areas where organic material produces its
own heat, thus negating cold temperatures that would usually freeze the soil.
We also use construction practices that reduce the spread of invasive species and transmittal of agricultural pests and diseases.
In certain instances, we have used helicopters to access and work on transmission lines to avoid contacting environmentally
sensitive areas on the ground.
Inspections are performed during and after construction to ensure compliance and proper restoration. In some cases, we partner
with conservation groups, municipalities and others to remove invasive species and improve habitat for wildlife.
Our dedication to the environment also is evidenced through our designation as a Green Tier company by the Wisconsin
Department of Natural Resources. Green Tier recognizes businesses and organizations that demonstrate superior environmental
performance and dedication to continual improvement, and strives to encourage responsible environmental decision making
to protect and restore natural resources.
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Plans and proposals
for the transmission system
For planning purposes, we divide our service area into five zones representing distinct geographic
or usage areas. Within each zone, we compile and assess the transmission system needs.
Project classifications
Within each zone, we have recommended network and asset renewal projects to address system limitations. The network projects are classified
into one of three possible categories – Planned, Proposed or Provisional – depending upon the stage a project may be in. These categories
are consistent with those used by MISO.
Status of ATC planning activities
Application for regulatory approval
Project status
System solution included in generation
interconnection power flow models
Planned
Proposed
Provisional
Studies complete
Studies not complete
Studies not complete
Application pending or issued
None
None
Project in construction
planning phase or under
construction
Project identified
as preferred
alternative
Placeholder project; not
necessarily a preferred
project alternative
Project included
Project not included
Project not included
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System Limitations
North Central Wisconsin – Zone 1
Transmission system characteristics in Zone 1
ATC delivers power in Zone 1 with various transmission facilities including:

East-west
345-kV line from Arpin Substation through Stevens Point extending to the
Appleton area,

345-kV
line extending from Wausau to northeastern Minnesota,

345-kV
line extending from Wausau to Stevens Point to eastern Outagamie County (Highway 22),

115-kV network in the northern portion of the zone, and

138-kV
and 69-kV network in the southern portion of the zone.
There are a number of transmission system performance issues in Zone 1 including overloaded lines and
equipment and low system voltages.
Transmission system limitations in Zone 1
Key system performance issues in Zone 1 include low voltages and thermal overloads in the southern
portion of the zone. These issues will necessitate a combination of reinforcements.
Zone 1 includes the counties of:
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Adams
Marathon
Vilas (southern portion)
Forest (southwestern portion)
Marquette
Waupaca
Fond du Lac (northwest portion)
Monroe (eastern portion)
Waushara
Green Lake
Oneida
Winnebago
Juneau
Portage
Langlade
Shawano (western portion)
Lincoln
Vernon (eastern portion)
(western portion)
Wood
Lakota Rd Conover
Sagola
Twin Lake
ASHLAND
IR ON
IR ON
Butternut
Fe
Nordic
Randville
Peavy Falls Hy
VIL AS
System Limitations Key
DICKINSON
Florence Aspen
Eagle River
Park Falls
Eagle River Cranberry
St Germain
Low voltages
FLORENCE
Overloaded
facility
Clear Lake (WPS)
Twin Falls SW STA
Bass Lake
Pine Hy
Armory
Plains
Norway
Three Lakes
Aragon
Niagara
2
ONEIDA
Phillips
PRICE
FOREST
Rhinelander
Goodman
Highway Eight
Hodag
Rhinelander Paper
Metonga
Crandon
Venus
Kennan
Chal
Prentice
Catawba
Daves Falls Amberg
Hawkins
Eastom
Tomahawk
Tomahawk - ATC 115kV
ME
Silver Cliff
Fox Hills SW STA
MARINETTE
Wausaukee
Caldron Falls Hy
Summit Lake (WPS)
LINCOLN
Rib Lake
Grandfather Falls
High Falls Hy Thunder
LANGLADE
Sandstone Rapids Hy
Crivitz
Mountain
TAYLOR
Pine (WPS)
Merrill
n
Crivitz
Polar
White Lake
Antigo
Blackbrook SW STA
Aurora St
Antigo
Bunker Hill SW STA
Medford
Pound
Pound
Lublin
Coleman
Stetsonville
Athens
OCONTO
Maine
Brokaw
Aniwa
Dorchester
Deer Trail
Mattoon
Suring
MENOMINEE
Wausau
p
Curtiss
Withee Owen
Sherman St
Marathon City
Edgar
T Corners
Colby
Lena
Lena
Sunnyvale
Cassel
Wien SW STA
Abbotsford
Birnamwood
Birnamwood
Schofield
Kelly
MARATHON
Weston SW YD
Fenwood
Unity
Rothschild
Weston
Gillett
Hatley
Eland
Gardner Park
Wittenberg
Stratford
Greenwood
Bowler
Mosinee
CWEC Wittenberg
Cecil
White Clay
West Shawano
Shawano East Shawano
SHAWANO
CWEC Tigerton
Spencer
Tigerton
Loyal
CLARK
Caroline
Bonduel
Highway 22 Badger
McMillan
Groenier
CWEC Dewey
Marion
Marion
Rosholt CWEC Rosholt
Pulaski
Embarrass
Auburndale
Rosholt
Milladore
Northpoint
Arpin
PORTAGE
WOOD
Pittsville
Iola
Nelsonville
Whiting Ave
Whiting
Okray
Plover Plover
Arnott
Amherst Jct
CWEC Scandinavia
Scandinavia
Amherst
Manawa
Ogdensburg
Shiocton
De Pere Red Maple
Rockland (WPS)
OUTA GAMIE
North Appleton
Greenleaf
Hartman Creek
Waupaca
Hortonville
White Lake (WE)
Apple Hills
Weyauwega
ACEC Grant
Casaloma
Appleton
Northside
ACEC Wildrose
Plainfield (ALTE) ACEC Plainfield
Plainfield
ACEC Sherwood
Warrens
Hancock
ACEC Cottonville
Warrens
Coloma
ACEC Coloma
ADAMS
DPC Oakdale
River Run
Camp Douglas
Hustler
Castle Rock
Dartford
Princeton
MARQUETTE
Roeder
ACEC Winnebago
Montello
Neenah Creek
Oxford
Lyndon Station
Lyndon Station
Kilbourn
Finnegan
Yuba
RICHLAND
Viola
Ironton
Cazenovia
Markesan Markesan
Oakfield
Koch Oil
Mackford Prairie
SHEBOYGAN
Eden
Oakfield
Alto
ACEC Roslin
Plymouth Muncipal
Plymouth Mulle
North
Kettle Morraine (ALTE)
South Fond Du Lac SW YD
Waldo
Cascade
L
Waupun Main Waupun
Platt
Wisconsin Dells
Dell Creek
La Valle
Willow Lawn Martin Rd
Forward Energy Center
ON
SAUK
Ledgeview
Macy St
Hickory St
Fond du Lac Morris St Ohmstead
Fairwater Brandon
Fairwater Brandon
Kingston
Endeavor
Glenbeulah
Sadoff Co
FOND DU LAC
Green Lake SW STA
Elkhart Lake
Elkhart Lake
Plym
Mount Calvary St. Cloud
North Fond du Lac
Rosendale Rosendale
GREEN LAKE
Endeavor
DPC Lyndon Station
Ripon
Metomen
Marquette
Union Center
Union Center
Wonewoc
Hillsboro
Hillsboro
Wonewoc
3
Ripon
Green Lake
Montello
DPC Elroy
Elroy
Ontario
Northwest Ripon
Grand Marsh
ACEC Glen
La Farge
New Holstein SW STA
New Holstein
Meyer Rd Kiel
ACEC Chateau
on
Fitzgerald Aviation
Fox River
Cypress SW YD
West Mauston Mauston
Mauston
Hilltop (ALTE)
Kendall
St. N
Tecumseh Rd Ford Drive
ACEC Turtle Lake
Westfield
Westfield
ACEC Brooks
Dorset Corners
Wilton
Chilton
Mckenna
DPC New Lisbon
New Lisbon
DPC Buckhorn
ACEC Quincy
na
Berlin Berlin
Neshkoro
Gravesville
Lincoln Pump STA
JUNEAU
Norwalk
ACEC Spring Lake
Lohrville
ACEC Richford
Chaffee Creek
Friendship
Friendship
Adams
Houghton Rock
DPC Whistling Wings
Oakdale
MONROE
Coloma
MANITO
CALUMET
Sunset Point
Bowen St
Omro
Pearl Ave
Omro
Omro Industrial Park 12th Ave Oshkosh
Oshkosh
Progress
Ellinwood
Red Granite
Reedsville
Stockbridge
WINNEBAGO
Redgranite
Silver Lake (ALTE)
ACEC Dellwood
Glenview
Brillion
Potter
Mears Corners
Winneconne
Winneconne
Fountain Valley
ACEC Wautoma
Wautoma Wautoma
Petenwell Big Pond
Necedah
Necedah
Ryan St
Hilbert
ACEC Hancock
WAUSHARA
DPC Ocean Spray
Wyeville
Forest Junction
Sherwood
Woodenshoe
ACEC Wild Rose Pump
Hancock
Meadows
Neenah
Wild Rose
Sand Lake
Maes Kaukauna
Little Chute
Kimberly
Combined Locks
Tayco
Neevin
Menasha
Wild Rose
Badger West
Wrightstown
Kaukauna North
Fremont
Almond
ACEC Badger West
Lost Dauphin
Ellington
Harrison 69kV Waupaca
Golden Sands
Port Edwards Vulcan Chem
Port Edwards
Hollywood Saratoga
Nekoosa
Mystery Hills
BROWN
Werner
New London
Northern Steel Casting Baker St
Wisconsin Rapids
Preble
7th St
South Broadway
Highway V O
Ashwaubenon Ashland Ave
Bluesto
Oak St Depere Allouez
Hintz
Sheridan (ALTE)
West Wisconsin Rapids Coyne St
Armenia
Liberty St
4Black Creek
Manawa
WAUPACA
Amherst Junction
Green Bay
Mason St Velp Ave
Seymour
Iola
Biron
Lakehead Vesper
CKSON
Lawn Rd
Bear Creek
Rocky Run Hoover
ACEC
Badger West
Rudolph
Vesper Sigel
Vesper
Maplewood
Howard
Howard
CWEC Iola
Stevens Point
Rudolph
Pittsville
Big Falls
Nichols
Arpin
Neillsville
Clintonville
Junction City
Granton
North Tomah
Tomah
Council Creek
Suamico
Clintonville
Auburndale
Flare Ave
Sobieski
Belle Plaine Cloverleaf
Rozellville
Wildwood (MEWD) Hume
Marshfield
Mill Creek
Stiles SW STA
Morgan
Whitcomb
Elderon
Pioneer (WPS)
Oconto Falls Falls
Gresham
Wittenberg
Morrison Ave
Stratford
Brooks Corners
Zobel
Birchwood
Lake Delton
ACEC Lewiston
ACEC Cambria
Trienda
Portage
Reedsburg Nishan
Reedsburg
Reedsburg Artesian
Waupun
Lake Delton Fox Hills
Brownsville Butternut
Lakehead Portage
COLUMBIA
Portage Ind Park
Portage
Sanborn
Pardeeville
Pardeeville
Lomira
Friesland
Staff
Cambria Didion
Cambria
DODGE
Randolph
Randolph
Ade
Campbellsport
Ra
Fox Lake
Fox Lake (ALTE)
Auburn
Kekoskee
Mayville
Mayville
Kewaskum
Theresa
WASHINGTON
5
17
Random L
OZAU
Transmission projects in Zone 1
North Central Wisconsin – Zone 1
We have implemented one project in Zone 1 since the 2010 Assessment, which was the construction of a new 69-kV line to the
new Warrens Substation tapped from the Council Creek-Tunnel City 69-kV line.
Our current plans in Zone 1 include 15 system reliability and economic projects between 2011 and 2025. These projects are in
various stages of development. The most notable planned, proposed, provisional and asset renewal projects in Zone 1, along with
their projected year of completion and the factors driving the need for the projects, are listed below.
Project description
In-service
year
Need driver
Planned projects
1
Clear Lake-Woodmin 115-kV line 2012
T-D interconnection
2014
Low-voltage, economics, avoids reconfiguration during emergencies
2017
Overloads, low-voltages, and economic
Proposed projects
2
Monroe County-Council Creek 161-kV line Provisional projects
3
Fairwater-Mackford Prairie 69-kV line
Asset Renewal projects
4
Wautoma-Berlin 69-kV line rebuild
2011
Condition and performance
5
Whitcomb-Deer Trail 69-kV line partial rebuild
2011
6
Montello-Wautoma 69-kV line rebuild
2017
7
Plover-Whiting 115-kV line rebuild
2019
8
Coyne-Saratoga 115-kV line partial rebuild
2020
System Solutions Key
SUBSTATION KEY
TRANSMISSION LINE KEY
New substation
345-kV transmission line
Substation modifications
115-, 138- or 161-kV transmission line
Supports transmission system expansion
Upgrades equipment ratings to avert facility overloads
Transformer
Supports local growth and improves voltage levels
Capacitor bank or reactor
Rebuilt 115- or 138-kV transmission line
Transmission line voltage conversion
Relieves low voltages or high voltages
T-D interconnection
Rebuilt 69-kV transmission line
Supports local growth
EXISTING TRANSMISSION LINES KEY
SUBSTATION KEY
New substation
18
69 kV
161 kV
115 kV
230 kV
138 kV
345 kV
IR ON
Lakota Rd
ASHLAND
Conover
IR ON
Sagola
Twin Lake
Peavy Falls Hy
VIL AS
T-D
Depending on the status
of the projects shown,
the transmission line
additions may be for
illustrative purposes only
and may not reflect the
PRICE
actual routes.
Randville
DICKINSON
Aspen
Woodmin
Florence
Cranberry
Eagle River
St Germain
1
Bass Lake
FLORENCE
Clear Lake (WPS)
Armory
Pine Hy
Three Lakes
2
ONEIDA
FOREST
Rhinelander Paper
Goodman
Hodag
Metonga
Venus
Daves Falls A
Eastom
Fox Hills SW STA
Silver Cliff
MARINETTE
Summit Lake (WPS)
LINCOLN
Grandfather Falls
LANGLADE
TAYLOR
Mountain
Blackbrook SW STA
Pine (WPS)
C
Polar
Antigo
Aurora St
Pound
OCONTO
MENOMINEE
Maine
Deer Trail
Hilltop (WPS)
Sherman St
Sunnyvale
Wien SW STA
T Corners
Lena
Cassel
Birnamwood
MARATHON
Brooks Corners
Kelly
Pioneer (WPS)
Wittenberg
SHAWANO
CWEC Wittenberg
5
Stratford
Whitcomb
Caroline
Caroline
White Clay
Badger
Sobieski
McMillan
T
Rozellville
Groenier
Hume
Rosholt CWEC
CWEC Dewey
Marion
Suamico
Rosholt
Auburndale
Maplewood
Arpin
Northpoint
Pittsville
Lawn Rd
WAUPACA
Rocky Run
Plover
7th
Ashland Ave
Amherst Jct
Arnott
7
Lakehead Vesper
4
Manawa
Golden Sands
T
Greenleaf
White Lake (WE)
Apple Hills
ACEC Grant
Casaloma
Butte Des Morts
Plainfield (ALTE)
ACEC Arrowhead
ACEC Wildrose
ACEC Plainfield
ACEC Sherwood
Armenia
Badger West
Necedah
2
T
SM
Council Creek
SM
JUNEAU
SM
6
Mckenna
ACEC Brooks
ACEC Winnebago
Mauston
Ripon
Montello
SM
Mackford Prairie SW STR
Lyndon Station
Union Center
Wonewoc
SM
DPC Lyndon Station
Platt
SAUK
Dell Creek
Reedsburg
Zobel
Artesian
SM
Trienda
Portage
Koch Oil
Sanborn
Cambria
Auburn
SS
Staff
T
Butternut
DODGE
SM
ACEC Cambria
Pardeeville
Oakfield
SM
Waupun
Lakehead Portage
SM
SHEBOYGA
Mulle
FOND DU LAC
Alto
COLUMBIA
ACEC Lewiston
Birchwood
Reedsburg Nishan
3
Endeavor ACEC Roslin
Hillsboro
Elkhart Lake
Ledgeview
Fairwater
Brandon
North Fond Du Lac
Rosendale
T
Neenah Creek
ACEC Glen
DPC Elroy
to Madison
R I C H L A N D area
Cypress SW YD
Ripon
SM SM
Roeder
Tecumseh Rd
C
Dartford
GREEN LAKE
SM
ACEC Chateau
West Mauston
Gravesville
Aviation
Berlin
MARQUETTE
SM
T
Omro
Fox River
ACEC Turtle Lake
Westfield
M
CALUMET
River Run
Ellinwood
C
Dorset Corners
Zone 3
Sunset Point
SM
4
Silver Lake (ALTE)
Mears Corners
SM
Friendship
C
DPC New Lisbon
DPC Buckhorn
WINNEBAGO
Chaffee Creek
ACEC Friendship
ADAMS
Camp Douglas
DPC Oakdale
Fountain Valley
T
Red Granite
ACEC Coloma
ACEC Dellwood
DPC Whistling Wings
Wautoma
Coloma
T
Castle Rock
to La Crosse
area
Hancock
Petenwell
SM
Woodenshoe
Winneconne
ACEC Wautoma
ACEC Cottonville
DPC Ocean Spray
Glenview
WAUSHARA
ACEC Wild Rose Pump
SM
Maes
Meadows
Tayco
Neevin
Wild Rose
Sand Lake
Warrens
Rockland
North Appleton
Ellington
Waupaca
8
Baker St
Oak St
OUTA GAMIE
Harrison
Saratoga
Glory Rd
Hintz
Sheridan (ALTE)
Coyne St
Hollywood
Mason St
Iola
Hoover
Okray
Sigel
JACKSON
James St
CWEC Iola
PORTAGE
Rudolph
WOOD
Cloverleaf
Clintonville
Mill Creek
VERNON
Morgan
West Shawano
CLARK
MONROE
S
Falls
Weston SW YD
Fox Lake (ALTE)
Randolph
5
North Beaver Dam
Mayville
19
15
WASHINGTON
Ran
KEWEENAW
HOUGHTON
ONTONAGON
BARAGA
LUCE
MARQUETTE
GOGEBIC
CHIPPEWA
ALGER
IRON
DICKINSON
VILAS
AS
FLORENCE
MENOMINEE
FOREST
MARINETTE
DELTA
SCHOOLCRAFT
MACKINAC
System Limitations
Michigan’s Upper Peninsula
and Northern Wisconsin – Zone 2
Transmission system characteristics of Zone 2
ATC delivers power in Zone 2 with various transmission facilities
including:

Morgan-Plains and Plains-Dead River 345-kV lines,
Plains-Stiles 138-kV double-circuit line
Keweenaw
Keweenaw
Conover-Plains 138-kV line, and
Ahmeek
Calumet Osceola
Laurium

138-kV facilities tying the Upper Peninsula of Michigan
Lake Linden
Hubbell
to the Lower Peninsula.
MTU
Atlantic
Henry St. (UPPCO)
Portage (UPPCO)
There are a number of transmission system performance issues in
Zone 2 including limited ability to import or export power, generator
instability, overloaded lines and equipment, low system voltages and
chronic limitations to transmission service. Primary drivers of these
issues include a mismatch of load to generation in the Upper Peninsula
and aging facilities in poor or obsolete condition.
Toivola
Houghton
Twin Lakes (UPP)
UPSCO
Winona
Ontonagon
Ontonagon
Old Winona
M-38
White Pine Mine
Mass
White Pine Vlg
Baraga Vlg
L'anse
JH Warden L'Anse
Rockland (UPP) Lake Mine
Victoria Hy
Baraga
Ontonagon
Our recently completed northern umbrella plan projects
(Cranberry-Conover-Plains) began to address some of the identified
issues, but efforts to upgrade the area are ongoing. To vet our planning
Gogebic
assumptions for the intermediate- and long-term periods, we’ve
engaged stakeholders in a collaborative process (known as the
M ICH
ATC Energy Collaborative – Michigan) to examine the bounds of
IGAN
several plausible futures. Please refer to www.atc10yearplan.com,
WISC
O
Iron
NSIN
ATC Energy Collaborative – Michigan for details.
F
Greenstone North Lake Barn
Ishpeming Ne
Bruce Crossing
Mineral Processing National Til
Wakefield
Perch Lake
Mich Transmitter Fac
Watersmeet
Iron
Land O Lakes
Mansfield
Lakehead Iron River
Crystal Falls
Strawberry Hill Iron Grove
Crystal Falls
Iron River
Lincoln Ave (UPPCO)
Gaastra
Alpha
Lakota Rd Conover
Twin Lake
Vilas
Dickinson
In the analysis of Zone 2, we identified low voltages, transmission
facility overloads and transmission service limitations. In addition,
heavily loaded facilities during off-peak periods continue to keep
the system working with very small operating margins.
Eagle River
St Germain
Cranberry
Florence
Eagle River
Clear Lake (WPS)
Florence
Marathon
Cassel
Fenwood
Norway
Plains
Highway Eight
Forest
Me
Goodman
Hodag
Nath
Rhinelander Paper
Metonga
Crandon
Venus
Chalk Hills
Daves Falls Amberg
Marinette
Eastom
White Rapids Hy
Holmes
Rosebush
Silver Cliff
S
Fox Hills SW STA
Caldron Falls Hy Wausaukee
Summit Lake (WPS)
Grandfather Falls
High Falls Hy Thunder
Langlade
Sandstone Rapids Hy
Crivitz
Mountain
Merrill
Pine (WPS)
Blackbrook SW STA
Polar
Antigo
Aniwa
Sunnyvale
Mosinee
Mattoon
Birnamwood
Birnamwood
Marathon City
Sherman St Kelly
Weston
Weston SW YD
Rothschild Gardner Park
Pound
Pound
Coleman
Oconto
Maine
Brokaw
Wausau
Hatley
CWEC Wittenberg Wittenberg
Wittenberg
Elderon
Deer Trail
Menominee
Suring
Brooks Corners
Eland
Bay
Crivitz
White Lake
Aurora St
Bunker Hill SW STA
Antigo
Morrison Ave
Stratford
Bass Lake
Armory
Kingsford
Oneida
Tomahawk
Twin Falls SW STA
Pine Hy
Bluff View
The potential for generation at Presque Isle Power Plant becoming
unstable after certain disturbances to the transmission system has
been a long-standing limitation and the reason for an automated
tripping scheme in place at the plant. We are continuing to evaluate
alternatives to this complex scheme. As part of the ATC Energy
Lincoln
Collaborative – Michigan, we are also evaluating potential generation
Taylor
retirement scenarios. Please refer to www.atc10yearplan.com,
ATC Energy Collaborative – Michigan for details.
20
Aspen
Three Lakes
Price
Edgar
Sagola
Randville Nordic
Felch Mountain
Peavy Falls Hy
Bowler
Whitcomb
CWEC Tigerton
Roosevelt Rd
Sherwood Pesh
Peshtigo
Lena
Lena
Oconto
Gresham
Shawano
Gillett Oconto Falls Falls Pioneer (WPS) Oconto
Stiles SW STA
Morgan
Cecil
White Clay
West Shawano
Shawano East Shawano
Alger, Mich.
Florence, Wis.
Baraga, Mich.
Forest, Wis.
(northern portion)
Chippewa, Mich.
Gogebic, Mich.
Delta, Mich.
(eastern portion)
Dickinson, Mich.
Houghton, Mich.
Lake
Iron, Mich.
Marinette, Wis.
Ontonagon, Mich.
Marquette, Mich.
Schoolcraft, Mich.
Menominee, Mich.
Vilas, Wis.
(northern portion)
Keweenaw, Mich.
Luce, Mich.
Mackinac, Mich.
(eastern portion)
(northern portion)
(northern portion)
CANADA
Superior
Us Hydro 9 & 10 Magazine
Sault Ste. Marie
Freeman
Big Bay
num
egaunee
3 Mile
Luce
Marquette
Harvey
lden
Alger
Empire Mine
Marquette
Munising
Munising
Chatham
Chatham
Forest Lake
ility Sawyer Lumber K I Sawyer
K. I. Sawyer AFB
Newberry Vlg
Alger
Shingleton
Pines (UPPCO) Seney (UPPCO)
Hulbert
Lou Pac
Newberry Roberts SW STA
Eckerman
Raco
9 Mile SW STA
Chippewa
Tone Kincheloe Housing
Seney (AD-REA)
Kincheloe SW STA Kincheloe Main
Rudyard
Trout Lake (ESE)
Forsyth Gwinn
Gwinn
Rexton
Schoolcraft
Hiawatha (ESE) Engadine
Blaney Park SW STA
Sault
Dafter
Brimley
Curtis
Gould City SW STA
Lakehead Naubinway
Pickford
Pine River (ESE)
Trout Lake (CEC)
Rockview
Mackinac
Goetzville
Limeston
Brevort
Detour
Arnold
Watson
Manistique Glen Jenks
Perkins
Lakehead Rapid River
Delta
Manistique
Loading Dock Sub
St. Ignace
Mackinac Island
Cornell-UP
Mead Pump
Lake
McGulpin
Chandler
Gladstone
Bayview
Huron
Garden
Escanaba
Powers
Powers
Harris
enominee
han Carney
gan
Hy
MICHIGAN
chi
Daggett
Mi
Stephenson
Ingalls
Lak
e
Grand Rapids Hy
Sister Bay Sister Bay
Ephraim
De Noc
Menominee
Ogden St
Egg Harbor
Egg Harbor
htigo Wells St
Low voltages
Overloaded facility
Door
Dunn Rd
Redwood
First Ave
Brusbay
Canal
Sturgeon Bay
21
KEWEENAW
HOUGHTON
ONTONAGON
Michigan’s Upper Peninsula
and Northern Wisconsin – Zone 2
BARAGA
LUCE
MARQUETTE
GOGEBIC
CHIPPEWA
ALGER
SCHOOLCRAFT
MACKINAC
IRON
DELTA
DICKINSON
VILAS
AS
FLORENCE
MENOMINEE
FOREST
MARINETTE
We have implemented two projects in Zone 2 since the 2010
Assessment, including the installation of reactors at the Straits
Substation.
actual routes.
TRANSMISSION
Our current plans in Zone 2 include 13EXISTING
system reliability
and LINES KEY
economic projects between 2011 and 2025. These projects are
69 kV
161 kV
in various
oftransmission
development.
115-, 138-stages
or 161-kV
line The most notable planned,
proposed,
provisional and asset renewal projects
in Zone 2, 230 kV
115 kV
along with their projected year of completion and the factors
driving
the need for the projects, are listed at right.
138 kV
345 kV
oads
s
Keweenaw
Keweenaw
Osceola
We also are working on a package of projects (a Northern
Plan)
that coordinate with existing plans to address generation
changes, load changes and developing transmission
contingency issues. This plan also will affect infrastructure
development in Zones 1 and 4.
SM
MTU
Atlantic
1
Toivola
Houghton
Ontonagon
Stone Container
Old Winona
White Pine Mine
Twin Lakes (UPP)
Winona
UPSCO
Lake Mine
M-38
SM
JH Warden
M-38
Mass
White Pine Vlg
L'anse
Victoria Hy
Ontonagon
Baraga
SUBSTATION KEY
New substation
Mineral Processing
Bruce Crossing
Greenstone
National
Transformer
MICH
WISC
T-D interconnection
12
Gogebic
Iron
Perch Lake
Mich Transmitter
IGAN
ONS
IN
Watersmeet
Iron
Mansfield
Lakehead Iron River
Land O Lakes
Mansfield
Strawberry Hill
Lakota Rd
Vilas
Conover
Crystal Falls
Iron Grove
Dickin
Sagola
Peavy Falls Hy
Twin Lake
Randville
Woodmin
St Germain
Eagle River
Aspen
Twin Falls SW STA
Cranberry
Florence
Clear Lake (WPS)
Bass Lake
Plains
Pine Hy
Armory
Three Lakes
Price
Oneida
Goodman
Hodag
Metonga
Venus
H
Eastom
69 kV
161 kV
115 kV
230 kV
Daves Falls Amberg
Fox Hills SW STA
Silver Cliff
Lincoln
Caldron Falls Hy
Summit Lake (WPS)
Thunder
Marinet
Langlade
Grandfather Falls
Taylor
Mountain
Blackbrook SW STA
Pine (WPS)
138 kV
Aragon
Norway
Forest
Rhinelander Paper
Felch Mo
Nordic
Antigo
345 kV
Crivitz
Polar
Aurora St
West Marinette
Pound
Marathon
Oconto
Menominee
Maine
Deer Trail
Sunnyvale
Lena
22
Cassel
Kelly
Birnamwood Brooks Corners
Weston SW YD
Oconto
Wittenberg
Shawano
CWEC Wittenberg
White Clay
West Shawano
Whitcomb
Falls
Morgan
Stiles SW S
Project description
In-service
year
Need driver
Planned projects
1
Atlantic-M38 69-kV line rebuild
2013
Overloads, low voltages, condition and performance
Proposed projects
2
Straits-Pine River 69-kV double circuit rebuild
2014
Overloads and low voltages
3
Mackinac 138-kV Substation; Install back-to-back
HVDC flow control device
2014
Address/Control flow across eastern U.P., overloads and low voltages
4
Chandler-18th Road 138-kV double circuit lines
2014
5
Arnold 345-kV Substation and 345/138-kV transformer
2015
6
Pine River-Nine Mile 69-kV line uprate and asset renewal
2016
Overloads, condition and performance
2014
Overloads, low voltages, condition and performance
Provisional projects
7
Munising-Seney-Blaney Park 69-kV line uprate
8
Nine Mile-Roberts 69-kV line partial rebuild
2012
9
Forsyth-Munising 138-kV line re-insulation
2012
10
Munising-Gwinn
69-kV line partial rebuild
Lake Superior
2012-2013
11
Rexton-Hiawatha 69-kV line partial rebuild
2015
12
Conover-Mass 69-kV line partial rebuild
2018
13
Powers-Chalk Hill 69-kV line partial rebuild
2018
14
Straits-McGulpin 138-kV submarine cable replacements
2020
CANADA
Magazine
Presque Isle SW YD Dead River (WE)
Us Hydro 9 & 10
Big Bay
3 Mile
Luce
8
Barnum
Marquette
9
l
Facility
SM
K I Sawyer
Alger
Gwinn
Timber Products
Munising
Seney (UPPCO)
Lou Pac
Newberry Vlg
SM
Forest Lake
Hulbert
son
Engadine
Engadine
ountain
SM
T
Arnold
5
Lakehead Rapid River
SM
SM
Delta (UPPCO)
Powers
T
4
Gladstone
T
6
SM
Tone
SM
11
Rudyard
SM
Pine River (ESE)
Rexton
Mackinac
Rockview
2
Limeston
Goetzville
Brevort
Mich Limestone Loading Dock
Detour
Mich Western Limestone
3
SS
14
SM
18th
Road
Bayview
SS
Curtis
Loading Dock Sub
Glen Jenks
Masonville (UPPCO)
Chandler
13
Indian Lake
Perkins
Delta
Indian Lake
Dafter
Pickford
Trout Lake (CEC) Trout Lake (ESE)
Blaney Park SW STA
Gould City SW STA
SS
Raco
Eckerman
Newberry
7
Schoolcraft
Pine Grove
Brimley
Chippewa
Seney Sw Sta
Pines (UPPCO)
Shingleton Star Siding
10
SM SM
SM
Alger
Chatham
Forsyth
SM
Portage St Hy
Sault
9 Mile SW STA
Evergreen
Straits
SM
McGulpin
Lake
Huron
McGulpin
C
Harris
Nathan
an
Menominee
Grand Rapids Hy
e
Ingalls
Lak
tte
MICHIGAN
Mic
hig
Holmes
Bay De Noc
Menominee
Sister Bay
30th Ave
Bayshore
SW YD
Ogden St
Egg Harbor
Peshtigo
Door
Dunn Rd
Dunn Rd
STA
Redwood
Brusbay
Canal
23
System Limitations
South Central/Southwest Wisconsin and North
CRAWFORD
RICHLAND
SAUK
COLUMBIA
IOWA
DODGE
JEFFERSON
DANE
GRANT
LAFAYETTE
GREEN
ROCK
WALWORTH
WINNEBAGO, ILL
Columbia-North

Dorset Corners
Norwalk
La Crosse
La Crosse
Monroe
Wilton
Melvina
Madison 345-kV lines,
Kendall
Cashton
Ontario
Coon Valley
Columbia-Rockdale

Paddock-Rockdale

345-kV line,
Stoddard
Chaseburg
345-kV line (in-service spring 2010),
Paddock-Wempletown

Rockdale-Wempletown

Vernon
Genoa
345-kV line,
H
Hillsbo
Westby
La Farge
Viroqua
Yuba
Viola
345-kV line, and
138-kV

facilities from the Nelson Dewey Power Plant,
around the Madison area, and in the northwest and
southeast portions of Zone 3.
Readstown
De Soto
Soldiers Grove
Richland
Ferryville
There are a number of transmission system performance issues in
Zone 3 including voltage instability, limited import capability, overloaded
lines and equipment, and low system voltages. The causes of these
emerging issues include steady growth in certain areas, import capability
from Illinois, new power plants and different generation dispatch scenarios.
In our analysis of Zone 3, we identified low voltages and transmission
facility overloads. Low voltages are located in the Verona and Waunakee
areas. Several overloads on 69-kV facilities in Zone 3 are emerging
concerns.
Boaz
Mount SterlingGays Mills Gays Mills
Seneca
Richland Center James Ol
Pine River (ALTE)
R
Robert J Brewer
Bell Center DPC Bell Center
Eagle
Lynxville
Crawford
Blue River
Blue River
Steuben
Avoca A
Muscoda Muscoda
Muscoda Industri
Eastman
Boscobel Muni Boscobel
Boscobel Boscobel Muni Eastside
Brisbois
Prairie du Chien
La Pointe
Hillside
Wauzeka
King (king)
Wauzeka
Woodman
Gran Grae
DPC Prairie Du Chien
Highland
Fennimore
Mount Hope
Eden
Montfort
Cob
Patch Grove
Bagley
Livingston
Bloomington Bloomington
Grant
Lancaster Distribution
Lancaster Lancaster
Rewey
Rewey
Glen Haven
Nelson Dewey SW YD Cassville
Cassville
DPC Stoneman
Platteville
Pioneer(ALTE)
Potosi
Hillman
B
Belmo
DPC Platteville
Potosi Tennyson
Columbia
Green
Rock
Crawford
Iowa
Sauk
Lafayette
Walworth
Jefferson
Winnebago, Ill.
(southern portion)
Dane
Dodge
Grant
24
Elmo
Richland
(northern portion)
Dickeyville
Kieler
Low voltages
Overloaded facility
Cuba City
Cuba City South
Cuba City
Benton
Benton
Hazel Green
DPC
Central Illinois – Zone 3
New Lisbon
Princeton
Castle Rock
DPC Buckhorn
Green Lake Ripon Ind Park
Ripon
ACEC Chateau
Roeder
West Mauston Mauston
Mauston
Hilltop (ALTE)
Hillsboro
oro
Endeavor
Endeavor
Sheboygan
Waupun Main Waupun
Finnegan Platt
Kilbourn
Wisconsin Dells Muni 2
Wisconsin Dells
Dell Creek Birchwood
Lake Delton Loch Mirror
Waupun
Ironton
Reedsburg
Island
Rock Springs
Moore St
Baraboo
Kirkwood Baraboo
North Freedom
Sauk
Loganville
ACEC Friesland
Staff
North Randolph
Cambria Didion
Cambria
Sanborn
Pardeeville
Pardeeville
Beaver Dam 3rd St
Beaver Dam Center St
ACEC Calamus
Merrimac
Washington
Hampden
Lodi Lodi
Hustisford
Hustisford
Lowell
Clyman
Reeseville
Hartford
Neosho Rubicon
Dane
Dane
Spring Green
Spring Green
Wyoming Valley
Germantow
Germantown SW YD
Token Creek
Centennial Park Division Street
Arena
Arena
Waunakee SW STA Waunakee
Wick Drive Mazomanie
Mazomanie Mazomanie Industrial
Westport
Black Earth
Black Earth
Cross Plains
Bird St
Colorado South
Lands End
Dodgeville Dodgeville
Concord SW YD
Bark River
North East Mount Horeb Muni Cross Country Fitchburg Syene
Hooterville Blue Mounds
Barneveld
Mount Horeb Mount Horeb
Oak Ridge
Verona
Verona
Fitchburg
Tyranena
Johnson Creek
Lake Mills
Delafield
Jefferson
London
Lakehead Cambridge
Jefferson
Dousman
Sullivan
Jefferson
Cambridge Cambridge
Colloday Point Kegonsa
New Berli
North Prairie
Fort Atkinson
Stoughton East Stoughton
Stoughton Stoughton South
Big Bend
Brooklyn
Dana Corp
Sheepskin
Edgerton Saunders Creek
Lakehead Delavan
East Troy
Bluff Creek
REC Fulton LaMar
Milton
Monticello (ALTE)
Monticello
Belmont
ont
DPC Argyle
Argyle
North Monroe
DPC Gratiot Wiota
Jennings Rd SW STA
Browntown
Browntown
Albany (ALTE)
South Monroe
Monroe Monroe Central
Traxler
Bass Creek Footville
Footville Badger Pump STA
Racine
Wilcox
Sunrise
Venture
BOC Gasses
REC Newark
Paddock
Burlington
Burlington Air Liquide
Elkhorn Elkhorn
Delavan Delavan
REC Bradford
Scot Forge 1 Scot Forge 2
Clinton
Cranston
Northwest Beloit East Beloit Colley Rd
Shirland Ave Beloit
Park Ave
REC Clinton
Southwest Delavan
West Darien
Darien
Turtle
Rock River Marine
Brodhead SW STA
Walworth
REC LaPrairie
Blacksmith
Spring Grove
Sugar Creek Lafayette
Janesville General SW YD
Tripp Rd
REC Orfordville Orfordville
Orfordville
Brodhead North Brodhead
Brodhead Brodhead South
Brodhead Central
Idle Hour
Parkview
Viking Janesville
REC Center
Rock
Lafayette
Rochester
Tibbits
McCue
Albany
Green
Tichigan
Waterford
REC Red Hawk
REC Harmony
Russell
DPC LaMont
Darlington Darlington
South Wayne
Whitewater Whitewater
New Glarus New Glarus
Evansville Muni
Evansville
Union Townline
Gratiot
Mukwonago Mukwonago
University (WE)
Brooklyn
Blanchardville
Blanchardville
Edgewood
Muskeg
Eagle
Palmyra
Belleville Belleville
Arcadian
Fort Atkinson
Forward
New Hollandale
Hollandale
Waukesha
Waukesha
Merrill Hills
Rockdale
Sun Valley Oregon
Oregon
Mineral Point Rock Branch
Mineral Point
Wales
Christiana Rockdale
North Stoughton
Linden
Pewaukee
Waukesha
McFarland
McFarland
Lanno
Sussex
Sussex
Menomonee Falls
Chenequa
Mill Rd
Cottonwood (WE)
Cooney
Hartland
Oconomowoc
Duplainville
Oconomowoc Lake Summit Nashotah
Merton
Lac La Belle
East Towne
Nine Springs
Ridgeway
Watertown
Marshall
Waterloo
Sun Prairie Lakehead Waterloo Boxelder Stony Brook
Huiskamp American Burke
Sun Prairie
Reiner Rd
Yahara River
Gaston Rd
Pheasant Branch Mendota Ruskin
Maple Bluff
Stage Coach SW STA Cross Plains Cardinal Middleton
Sprecher Cottage Grove
Blount Royster
Timberlane
Walnut GIS
Cottage Grove
Madison Monona Pflaum
Dane
West Towne Tokay
Wingra AGA Gas Femrite
Deerfield
Shullsburg
Miner Shullsburg
Jackson
North Madison Deforest
North Madison 345/138 kV
De Forest
Vienna
Easy Street
Lone Rock
C Shullsburg
Slinger
Butler Ridge
Hartford
Maple (WE
Sauk City Sauk City Phillips St
Troy
Iowa
Pleasant Valle
Ninth Street
Spruce Street Prairie du Sac
Plain
bb
Iron Ridge
St Lawrence Arthur Road
Columbus Muni 1 Columbus (ALTE)
Columbus
Columbus South
Arlington
Arlington
Lodi Industrial Park
Lone Rock
Juneau Downtown
Juneau Industrial Juneau
Fall River
Fall River
Academy
Okee
lson
Barton
Glacier
West Bend
Juneau Northside
ACEC Doylestown
Poynette Poynette
Kewaskum
Theresa
Spring Brook
Horicon Ind Park Horicon
Hubbard
Horicon
Dodge
Doylestown
Badger Ordinance Works
Merrimac
Dam Heights Eagle View
Kekoskee
Mayville
Beaver Dam East
Rio Pumping Station
Rio
Loganville
Richland
Auburn
Fox Lake (ALTE)
Mayville
Columbia
Campbellsport
Fox Lake
Randolph
Randolph
North Beaver Dam
Columbia SW YD (ALTE) Manley Sand Wyocena
Wyocena
Caledonia (ALTE)
Rock Springs
Lime Ridge
Hamilton St
Portage
Portage Ind Park Portage
Artesian
ACEC Cambria
Butternut
Lomira
Friesland
Trienda
Reedsburg Nishan
Reedsburg
Brownsville
Lakehead Portage
ACEC Lewiston
Zobel
Cazenovia
ial Sub
Kettle Morraine (ALTE
Cedar Ridge Wind Generation
Eden
Oakfield
Wonewoc
Wonewoc
La Valle
Avoca
Oakfield
Koch Oil
Alto
ACEC Roslin
Ledgeview
Macy St
Morris St Ohmstead
Fond du Lac
Markesan Markesan
Mackford Prairie
Kingston
DPC Lyndon Station
Fond du Lac
Brandon
Fairwater Fairwater
Brandon
Marquette
Green Lake
Lyndon Station
Lyndon Station
Mercury Marine
Green Lake SW STA
Marquette
DPC Elroy
Elroy
Union Center Union Center
Sadoff Co
Hickory St
ACEC Glen
Adams
North Fond du Lac
Rosendale
Montello
Oxford
ACEC Winnebago
Rosendale
Metomen
Montello
Juneau
Ripon
North Lake Geneva
Lake Geneva
Williams Bay
Lake Geneva South Lake Geneva
Williams Bay
Brick Church Walworth
Fontana-on-Geneva Lake Cobblestone
Walworth
Sharon
Zenda
Sharon
Twin Lakes (ALTE
Katzenberg
Twin Lakes
Genoa City
REC Shaw
East Rockton
Kenosha
25
CRAWFORD
RICHLAND
SAUK
IOWA
COLUMBIA
DANE
DODGE
JEFFERSON
GRANT
LAFAYETTE
GREEN
ROCK
WALWORTH
South Central/Southwest Wisconsin and North
WINNEBAGO, ILL
We have implemented 11 projects in Zone 3 since the 2010 Assessment, most notably the
Bass Creek 138/69-kV transformer project and the Blount-Ruskin underground cable project.
Our current plans in Zone 3 include 35 system reliability and economic projects between 2011 and
2025. These projects are in various stages of development. The most notable planned, proposed,
provisional and asset renewal projects in Zone 3, along with their projected year of completion
and the factors driving the need for the projects, are listed below.
Project description
In-service
year
Need driver
Planned projects
1
2
Brodhead-South Monroe 69-kV line rebuild
2011
Rockdale-West Middleton (Cardinal) 345-kV line
2013Overloads and low voltages, improve
transfer capability to Madison area, avert
voltage collapse, lower system losses
to La Crosse
area
La Crosse
Monroe
Vernon
actual routes.
Proposed projects
3
Badger Coulee 345-kV line
2018
Policy benefits
2018
Gays Mills
Crawford
Seneca
DPC Bell Center
4
5
Colley Road-Brick Church 69-kV line rebuild
2018
6
Spring Valley-Twin Lakes-South Lake Geneva
2019
138-kV line Overloads and low voltages,
provide network service
Lake Delton-Birchwood 138-kV line
2020
Cardinal-Blount 138-kV line
2020
Sun Valley Tap-Oregon 69-kV line rebuild
2020
Improve line condition and area voltages
Dubuque-Spring Green-Cardinal 345-kV line
2020
Policy benefits
Hubbard-East Beaver Dam 138-kV line
2022
West Middleton-Pheasant Branch 69-kV line rebuild
2022
7
8
9
10
11
12
North Lake Geneva-South Lake Geneva 138-kV line
14
15
16
17
18
11
19
11
11
20
11
21
11
22
11
23
24
26
Gran Grae
C
Ki
Wauzeka
Brisbois
Hillside
La Pointe
Grant
Bloomington
Lancaster Distribution
Glen Haven
Cassville
DPC Stoneman
13
Boscobel
Boscobel Muni Eastside
Potosi
to Dubuque
area
Pardeeville Tap-North Randolph/Rio
69-kV line partial rebuild
2011
Spring Green-Stagecoach 69-kV line partial rebuild
2011
Dane-Dam Heights 69-kV line partial rebuild
2012
Sycamore-East Towne 69-kV underground
cable replacements
2012
Kirkwood-Trienda 138-kV line partial rebuild
2012
Doylestown-Rio Pumping Station 69-kV line rebuild
2013
Dam Heights-Portage 69-kV line rebuild
2016
Concord-Rubicon-Butler Ridge-Hartford 138-kV line rebuild
2016
Supports transmission
system expansion
Darlington-Hillman 138-kV line rebuild
2016
Belmont-Rewey 69-kV line rebuild
2018
Boscobel-Lone Rock 69-kV line rebuild
2018
West Middleton-Stagecoach 69-kV
underground cable replacement
2019
SUBSTATION
New substation
Upgrades equipment ratings
to avert facility overloads
Transformer
Supports local growth and
improvesvoltage levels
Central Illinois – Zone 3
Castle Rock
DPC Buckhorn
Ripon
Northwest Ripon
Ripon
Metomen
Dorset Corners
North Fond Du Lac
Metomen
ACEC Chateau
Adams
West Mauston
Metomen
Montello
Green Lake SW STA
Marquette
Mackford Prairie SW STR
Green Lake
Brandon
Fairwater
Markesan
DPC Lyndon Station
Endeavor
Wonewoc
Alto
ACEC Roslin
Waupun
Dell Creek
Birchwood
ACEC Lewiston
Artesian
Reedsburg
3
SM
19
SM
13
Wyocena
North Randolph
SM
Cambria
Sanborn
Pardeeville
SM
Caledonia (ALTE)
Baraboo
Staff
ACEC Cambria
Portage
Columbia SW YD (ALTE)
Island
Loganville
Trienda
SM
Rock Springs
Butternut
Lakehead Portage
17
Loch Mirror
7
Zobel
Reedsburg Nishan
Auburn
T
SS
Fox Lake (ALTE)
North Beaver Dam
Beaver Dam East
Rio Pumping Station
18
Columbia
11
Mayville
Spring Brook
Beaver Dam 3rd St
Horicon Ind Park
Center St
South Beaver Dam
Barton
Hubbard
Juneau Northside
Glacier
ACEC Calamus
Merrimac
Dodge
ACEC Doylestown
Richland
Poynette
Juneau Downtown
Pleasant Valley
Fall River
Arthur Road
Academy
James Olson
Okee
Pine River (ALTE)
Dam Heights
Robert J Brewer
C
Richland
Spruce Street
Eagle
Eagle View
Hartford
Butler Ridge
Rubicon
Maple (WE)
Deforest
20
Business Park
Blue River
Spring Green
Lone Rock
23
14
T
C
Arena
24
Black Earth
Stage Coach SW STA
SM
ing (king)
Dane
10
Iowa
SM
SM
12
8
West Middleton
T
16
Huiskamp
Blount
Fitchburg
Cross Country
Hooterville
Mount Horeb
Verona
SM
C
C
Mill Rd
Cooney
Gaston Rd
Tyranena
Cottage Grove
Cottonwood (WE)
Duplainville
Summit
Waukesha
Jefferson
McFarland
Crawfish River
London
Rockdale
Lakehead Cambridge
Arcadian
Waukesha
Arcadian
Jefferson
Merrill Hills
Cambridge
Dodgeville
Lands End
C
Sycamore SW YD
Femrite
Sussex
Bark River
Stony Brook
Pflaum
SM
SM
Syene
Concord SW YD
Boxelder
SM
Ruskin
Germantown SW YD
Concord SW YD
C
Burke
American
Nine Springs
Tokay
North East Mount Horeb Muni
Eden
C
South Sun Prairie
Mazomanie SW STR
Avoca
Muscoda
Washington
Columbus South
Hampden
15
Ninth Street
Hustisford
Columbus (ALTE)
Arlington
Lodi
Sauk City Phillips St
Troy
Muscoda Industrial Sub
Sheboygan
Oakfield
Koch Oil
Platt
Sauk
Fond du Lac
Lyndon Station
Union Center
Ohmstead
Macy St
ACEC Glen
DPC Elroy
Hillsboro
Rosendale
Neenah Creek
ACEC Winnebago
Juneau
Ledgeview
Roeder
9
North Stoughton
2
Rockdale
Fort Atkinson
Stoughton
Sun Valley Oregon
Stoughton South
Mukwonago
Forward
Mineral Point
New Hollandale
Rock Branch
Brooklyn
Belleville
Whitewater
22
Hillman
Pioneer(ALTE)
Hillman
Mukwonago
University (WE)
Dana Corp
Rewey
Blanchardville
Lakehead Delavan
New Glarus
Evansville Muni
LaMar
Union Townline
Belmont
Bluff Creek
Tichigan
Racine
REC Harmony
Russell
Monticello (ALTE)
REC Red Hawk
Tibbits
Wilcox
T
21
DPC Argyle
Lafayette
North Monroe
SM
Green
C
Darlington
Elmo
Jennings Rd SW STA
Cuba City
DPC Shullsburg
DPC Gratiot Wiota
SM
Shullsburg
REC Center
Rock
Albany (ALTE)
Brodhead North
Browntown
Blacksmith
Miner
Burlington
Walworth
Viking
Bass Creek
Air Liquide
Sunrise
Footville
Elkhorn
REC Orfordville
South Monroe
Monroe Central
Kieler
Benton
Sugar Creek Lafayette
Traxler
DPC LaMont
Tripp Rd
Orfordville
North Lake Geneva
REC Bradford
Venture
SM
Brodhead
1
Turtle
Marine
Spring Grove Brodhead SW STA REC Newark
4
West Darien
Scot Forge 1
Clinton (ALTE)
Scot Forge 2
C
REC Clinton
Colley Rd
SM
SM
5
South Lake Geneva
Kenosha
T SM
6
Zenda
C
Sharon
Twin Lakes (ALTE)
Richmond Road
Katzenberg
Shirland Ave
REC Shaw
East Rockton
KEY
T-D interconnection
115-, 138- or 161-kV
transmission line
Relieves low voltages
or high voltages
Rebuilt 115- or 138-kV
transmission line
Transmission line
voltage conversion
EXISTING TRANSMISSION
LINES KEY
69 kV
161 kV
115 kV
230 kV
138 kV
345 kV
27
MENOMINEE
OCONTO
SHAWANO
DOOR
KEWAUNEE
OUTAGAMIE BROWN
MANITOWOC
CALUMET
WINNEBAGO
FOND DU LAC SHEBOYGAN
System Limitations
Northeast Wisconsin – Zone 4
Four 345-kV lines extending from the Kewaunee and Point Beach nuclear units,
Two 345-kV lines extending from the Edgewater Power Plant,
Four 345-kV lines connecting the Gardner Park, Werner West, Morgan, and Plains Substations,
Two 345-kV lines from North Appleton to Werner West and Fitzgerald, and

Three 345-kV lines connecting South Fond du Lac Substation to the Columbia, Edgewater and
Fitzgerald Substations, and
A 138-kV network in the Fox River Valley/Green Bay area.
In the analysis of Zone 4, we identified few voltage or thermal limitations as part of this Assessment.
However, it should be noted that transmission service limitations during off-peak periods provide very
small operating margins.
Fond du Lac
Menominee, Mich.
Shawano
Kewaunee
Menominee, WIS.
Sheboygan
(northeast corner)
Manitowoc
Oconto
Winnebago
Door
Marinette
Outagamie
Brown
Calumet
Dodge
28
(eastern portion)
(southern portion)
(southern portion)
(eastern portion)
(eastern portion)
Forest
Silver Cliff
Fox Hills SW STA
Wausaukee
Ingalls
Caldron Falls Hy
WPS)
Grand Rapids Hy
Thunder
High Falls Hy
Marinette
Langlade
Sandstone Rapids Hy
Crivitz
Sister Bay
Mountain
Bay De Noc
Crivitz
Sister Bay
Ephraim
Polar
Menominee
White Lake
30th Ave
Bayshore
Roosevelt Rd
Marinette Wells St Ogden St
Pound
Pound
West Marinette SW YD
Coleman
Egg Harbor
Egg Harbor
Peshtigo
Sherwood Peshtigo
Oconto
Suring
Deer Trail
Mattoon
Menominee
Lena
Lena
Door
Brooks Corners
Dunn Rd
Oconto
Oconto
Gillett
Pioneer (WPS)
Oconto Falls Falls
Bowler
Stiles SW STA
Redwood
Morgan
Gresham
Industrial
First Ave
Sturgeon Bay Canal
berg
Cecil
Shawano
Brusbay
White Clay
West Shawano
East Shawano Shawano
gerton
Bonduel
EC Tigerton
Caroline
Badger
Sobieski
Highway 22
Forestville
Cloverleaf
Belle Plaine
Rosiere
Marion
Marion
Pulaski
Embarrass
Suamico
Dyckesville
Algoma City Algoma
Clintonville
Algoma
Clintonville
Big Falls
Maplewood Bayport SW STA
Howard
Howard
Nichols
Lawn Rd
Bear Creek
paca
Green Bay
Seymour
Manawa
Ogdensburg
Outagamie
Shiocton
Hintz
Kewaunee
Henry St (WPS)
Barnett
Booster
Beardsley St
Kewaunee
East Krok
n
Rockland (WPS)
Werner
Lost Dauphin
Ellington
New London
69kV
Luxemburg 24.9
Preble
7th St
Liberty St
South Broadway Highway V Ontario
Ashwaubenon
Bluestone
Ashland Ave
Allouez
Oak St Depere
Mystery Hills
Nicolet Paper Co
De Pere
Brow
Red Maple
Black Creek
Manawa
University (WPS)
James St
Mason St
Casco
Luxemburg
Velp Ave
C Iola
Waupaca
Hortonville
White Lake (WE)
Fox River SW YRD
Wrightstown
Apple Hills
Weyauwega
Kewaunee SW YD
Wesmark Denmark
Greenleaf
rison North 138kV
Kaukauna North
Point Beach SW YD
Casaloma
Appleton
Fremont
Kaukauna
Maes
Combined Locks
Little Chute
KimberlyCombined Locks
Maribel
Mishicot
Butte Des Morts City Limits Lake Park
Neevin
Meadows
Francis Creek
Melissa
Glenview Ryan St
Brillion Brillion Iron Works
Sherwood
Neenah
Hilbert
Omro
ake
Northeast
Rapids Manrap
Valders
Stockbridge
Winnebago
Mirro
Revere Dr
Custer
Manitowoc Dewey
Calumet
ranite
Two Rivers
Columbus St
Whitelaw
Manitowoc
Potter
Mears Corners
Winneconne
Winneconne
Fountain Valley
Shoto
Reedsville
Woodenshoe
ara
Tannery Rd Sw Yd
Mishicot
Kellnersville
Kellnersville
Forest Junction
Northside
Menasha Tayco
Sunset Point
St Nazianz
Gravesville
Bowen St
Omro
Chilton
Pearl Ave
Omro Industrial Park
Oshkosh
St. Nazianz
Ellinwood 12th Ave
Oshkosh
Progress
River Run
Fitzgerald
Tecumseh Rd
Fox River
Berlin Berlin
Aviation
Ford Drive
New Holstein SW STA
New Holstein
Meyer Rd
Cleveland
Kiel
Low voltages
Overloaded facility
Cypress SW YD
Dartford
Howards Grove
Ripon Ind Park
Green Lake
Northwest Ripon Ripon
Ripon
Rosendale
Metomen
reen Lake
Elkhart Lake
Elkhart Lake
North Fond du Lac
Rosendale
Sadoff Co
Fond du Lac
Howards Grove
Plymouth Sub 4
Glenbeulah
Erdman
Ledgeview
Macy St
32nd St
Hickory St
Mercury Marine
Fond du Lac
Green Lake SW STA
Fairwater Fairwater
Sheboygan 20th St
Morris St Ohmstead
Brandon
Brandon
Plymouth Muncipal
Plymouth Mullet River
North Mullet River
Sheboygan
Lodestar Kohler
Bemis Kohler
Adams St
Sauk Trail
Huebner
Edgewater SW YD
South Sheboygan Falls
Markesan Markesan
Mackford Prairie
Koch Oil
Oakfield
Eden
Oakfield
Alto
Waldo
Cascade
Lyndon
Waupun Main Waupun
Brownsville
Butternut
Holland
Campbellsport
Lomira
iesland
North Randolph
Oostburg
Adell
Waupun
Random Lake
Auburn
Fox Lake
Cedar Grove
Random Lake
Fox Lake (ALTE)
n
bia
Randolph
Randolph
Kekoskee
Dodge
Mayville
Theresa
Kewaskum
Fredonia
Mayville
North Beaver Dam
Beaver Dam East
Beaver Dam 3rd St
Beaver Dam Center St
Spring Brook
Horicon Ind Park Horicon
Hubbard
Horicon
Washington
Barton
West Bend
Belgium
Fredonia
Ozaukee
Newburg
Port Washington
29
MENOMINEE
OCONTO
SHAWANO
DOOR
KEWAUNEE
OUTAGAMIE BROWN
MANITOWOC
CALUMET
WINNEBAGO
Northeast Wisconsin – Zone 4
FOND DU LAC SHEBOYGAN
We have implemented one project in Zone 4 since the 2010 Assessment, which was the Kewaunee Substation bus reconfiguration
and addition of a second 345/138-kV transformer.
Our current plans in Zone 4 include 14 system reliability and economic projects between 2011 and 2025. These projects are in various
stages of development. The most notable planned, proposed, provisional and asset renewal projects in Zone 4, along with their
projected year of completion and the factors driving the need for the projects, are listed below.
Project description
In-service year Need driver
Planned projects
1
Canal-Dunn Road 138-kV line
2012
Proposed projects
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Barnhart-Branch River project
2018
Accommodate new generation
Barnhart-Plymouth-Howards Grove-Erdman 138-kV line*
2018
Accommodate new generation
Dunn Road-Egg Harbor 69-kV line
2021
Low voltages and provide network service
Shoto-Custer 138-kV line
2022
Overloads
Replace Edgewater 138/69-kV transformers
2012
Pulliam-Stiles 138-kV line replace shield wire
2013
North Appleton-Butte des Morts-Neevin 138-kV line rebuild
2015-2017
First Avenue-Redwood 69-kV submarine cable replacement
2015
Custer-New Holstein 69-kV line rebuild
2015
Dyckesville-Sawyer 69-kV line rebuild
2016
Neevin-Woodenshoe-Mears Corners-Sunset Point 138-kV line rebuild
2016
Finger Road-Danz Ave 69-kV line rebuild 2016
Oak Street-Highway V 69-kV line rebuild
2016
Wesmark-Manrap 69-kV line rebuild
2016
University-Danz Avenue 69-kV underground cable replacement
2017
Bayport-Sobieski-Pioneer 69-kV line rebuild
2018
Caldron Falls-Goodman 69-kV line rebuild
2019
Erdman-Lodestar 138-kV underground cable replacement
2019
Finger Road-Canal 69-kV line rebuild
2020
Edgewater-Erdman 69-kV underground cable replacement
2021
*This project is contingent on the route selected for the Barnhart-Branch River project
SUBSTATION KEY
Transformer
T-D interconnection
30
New substation
69 kV
161 kV
115 kV
230 kV
138 kV
345 kV
da
Forest
Fox Hills SW STA
18
Silver Cliff
Ingalls
Grand Rapids Hy
Caldron Falls Hy
e (WPS)
Langlade
Marinette
Sandstone Rapids Hy
Mountain
Sister Bay
Bay De Noc
Crivitz
Menominee
Polar
30th Ave
Bayshore
West Marinette SW YD
Ogden St
Pound
Egg Harbor
Peshtigo
Sherwood
Oconto
4
Menominee
Deer Trail
Door
Lena
Dunn Rd
Stiles SW STA
Brooks Corners
T
Oconto
SM
Pioneer (WPS)
9
Falls
tenberg
Michigan St
Redwood
Morgan
7
1
First Ave
Shawano
Canal
White Clay
East Shawano
Brusbay
West Shawano
Caroline
Caroline
Highway 22
T
11
Badger
Belle Plaine
Sobieski
17
Cloverleaf
Rosiere
Marion
Suamico
Dyckesville
Algoma
Clintonville
Bayport SW STA
Maplewood
Pulliam SW YD
SM
Howard
WEC Iola
Lawn Rd
13&16
Luxemburg 24.9
Mason St
Ontario
Brown
20
Kewaunee
Preble
7th St
Ashland Ave
Beardsley St
14
Glory Rd
Manawa
aupaca
Outagamie
Oak St
Depere
East Krok
Mystery Hills
Werner
Barnett
Booster
Highway V
Red Maple
Hintz
Rockland (WPS)
n
North Appleton
Ellington
Waupaca
Kewaunee SW YD
Wesmark
Greenleaf
Fox River SW YRD
White Lake (WE)
Point Beach SW YD
Apple Hills
15
Kaukauna North
8
Casaloma
Maes
Kaukauna Central
ushara
SM
Fountain Valley
Winnebago
T
5
Columbus St
Woodenshoe
Manitowoc
Custer
Calumet
Sunset Point
SM
Mirro
Mpu Plant
Lakefront SW YD
T
T
Shoto
Northeast
Mears Corners
Omro
nite
Ryan St
Mishicot
Kellnersville
SS
2
Glenview
Tayco Melissa
12
Branch River
Meadows
Neevin
Winneconne
Tannery Rd Sw Yd
Forest Junction
Lake Park
Butte Des Morts
Point Beach SW YD
SM
Dewey
St Nazianz
10
Gravesville
Oshkosh
Ellinwood
River Run
Fitzgerald
Tecumseh Rd
Fox River
New Holstein SW STA
Aviation
Berlin
Meyer Rd
Northwest Ripon
Dartford
mbia
ambria
Metomen
Markesan
Plymouth Sub 4
Ledgeview
Macy St
SM
SM
3
Elkhart Lake
North Fond Du Lac
Rosendale
ake SW STA
Randolph
C
T
ette
Howards Grove
Ripon
SM
Green Lake
Cypress SW YD
SM
19
21
Ohmstead
Plymouth Sub 3
Morris St
Fairwater
Brandon
Fond du Lac
Mackford Prairie
Koch Oil
Mullet River
20th St
Riverside (ALTE)
Kohler
Barnhart
SS
Sheboygan
Lyndon
Alto
Waupun
Holland
Butternut
Dodge
Edgewater
Huebner
T
Oakfield
North Gate
Erdman
SM
T
6
actual routes.
Random Lake
North Randolph
North Randolph
Fox Lake (ALTE)
Ozaukee
Auburn
Randolph
North Beaver Dam
Mayville
Washington
Fredonia
31
System Limitations
WASHINGTON
WAUKESHA
OZAUKEE
MILWAUKEE
RACINE
KENOSHA
Southeast Wisconsin – Zone 5

The southern portion of 345-kV lines from Point Beach and Edgewater,

The Saukville, Arcadian, Granville, Oak Creek, and Racine 345/138-kV substations,

The transmission lines emanating from the Pleasant Prairie and Oak Creek power plants,

230-kV facilities near Milwaukee, and

A significant 138-kV network in the Milwaukee area, a portion of which is underground.
Apart from the analysis performed in this Assessment, there is one major area event that could impact
transmission plans in Zone 5. The proposed road rebuild of the Zoo interchange is moving forward with the
following in-service dates:

Expand/update Watertown Plank area (2013),

Expand/update Highway 100/Highway 45 area (2014), and

Expand/update remainder of freeway (2015-2018).
The analyses of this road relocation project will likely result in new projects to reconfigure the transmission
system around Bluemound and 96th Street substations. Further projects may develop depending on the
Department of Transportation’s plans to rebuild the interchange. Studies are ongoing and plans will be finalized
in the 2011-2012 timeframe.
Key system performance issues in Zone 5 include:

Heavy flows on aging facilities,

Heavy flows from the west (Zone 3) resulting in heavily loaded 138-kV facilities in the western portion of
Zone 5,

Heavy market flows from and to the south, resulting in high 345-kV and 138-kV line loadings and the need
to monitor potential multiple contingency conditions, and

Sagging voltage profile in portions of Washington and Waukesha counties.
Transmission system reinforcements needed to interconnect and deliver the new generation at the Oak Creek
Power Plant comprised much of the recent expansion to Zone 5. Load growth in Waukesha and Washington
counties is projected to exceed the capabilities of the existing 138-kV system in those areas, signaling the need
for future transmission system reinforcements.
32
KENOSHA
OZAUKEE
WASHINGTON
MILWAUKEE
RACINE
WAUKESHA
Sheboygan
Fond du Lac
Random Lake
Auburn
Kekoskee
Cedar Grove
Random Lake
Kewaskum
Theresa
Mayville
Belgium
Mayville
Fredonia
Spring Brook
Fredonia
Horicon Ind Park
Horicon
Horicon
Hubbard
Barton
Newburg
Glacier
West Bend
Juneau Northside
Charter Steel
Juneau Juneau Downtown
Juneau Industrial
Iron Ridge
Dodge
Ozaukee
Hustisford
Washington
Hustisford
Port Washington Port Washington
Saukville
SW YD
Saukville Cedarsauk
Pleasant Valley
Arthur Road
St Lawrence
Hartford
Slinger
Clyman
Jackson
Hartford
Butler Ridge
Grafton
Neosho
Cedarburg
Rubicon
Cedarburg South
Maple (WE)
Mequon
Thiensville
Germantown
Mequon
68th St
Germantown SW YD
Swan
Watertown
Brown Deer
Concord SW YD
Parkland
Bayside
River Hills
Fox Point
Bark River
Lac La Belle
Merton
Sussex
Sussex
Cooney
Oconomowoc Lake
Duplainville
Delafield
Dousman
Waukesha
Waukesha
Shorewood
Shorewood
Center
Pewaukee
Milwaukee
Haymarket Square
Wauwatosa
O Connor
Bluemound 96th St
Walker
Waukesha
Sullivan
Butler
Tosa
Brookfield
Elm Grove
Jefferson
Whitefish Bay
Cornell - Milwaukee
Fiebrantz
Summit
Lake Michigan
Glendale
Butler
Cottonwood (WE)
Hartland
Nashotah
Range Line Dist Range Line
SW
Glendale
Granville
Tamarack
Mill Rd
Chenequa
Oconomowoc
Menomonee Falls
Lannon
Moorland
Arcadian
West Junction
West Allis
Wales
Everett
Greves
Park Hill
Harbor (WE)
West Milwaukee
Milwaukee
Merrill Hills
28th St
Lincoln
Montana
Dewey (WE)
Brookdale
New Berlin
Greenfield
Cudahy
Hales Corners
North Prairie
Lakeside
Kansas
St. Francis
Norwich
Allerton
Greendale
Barland Ramsey
Branch
Nicholson (WE)
South Milwaukee
Big Bend
St Martins
Muskego
Edgewood
Franklin
Eagle
Palmyra
Oak Creek
Pennsylvania
Mukwonago Mukwonago
University (WE)
Root River
Elm Road 345 Sws Yd Oak Creek SW YD
Oak Creek 230kV SW YD
hitewater
Whitewater
East Troy
Bluff Creek
St Rita
Raymond
Wind Point
Tichigan
Low voltages
Overloaded facility
North Bay
Waterford
Rochester
Tibbits
Racine
Racine
Sugar Creek
Sturtevant
Burlington
Elmwood Park
Union Grove
Burlington
Elkhorn
Walworth
Hayes
Racine
Lafayette
Air Liquide
Paris
Elkhorn
Somers
Bristol (ALTE)
Delavan
Delavan
Southwest Delavan
North Lake Geneva
Albers
West Darien
Darien
ron
Lake Geneva
Williams Bay
Lake Geneva
Williams Bay
South Lake Geneva
Kenosha
Kenosha
Paddock Lake
Kenosha
Bain
Brick Church
Walworth
Walworth
Fontana-on-Geneva Lake
Silver Lake
Zenda
Twin Lakes (ALTE)
Spring Valley (WE)
Cobblestone
Richmond Road
Katzenberg
Pleasant Prairie
Twin Lakes
Sharon
Lakeview
Genoa City
ILLINOIS
33
Southeast Wisconsin – Zone 5
WASHINGTON
WAUKESHA
OZAUKEE
MILWAUKEE
RACINE
KENOSHA
We have implemented three projects in Zone 5 since the 2010 Assessment, most notably the interconnection of the new 650 MW
(615 MW net) generator at the Oak Creek Power Plant.
Our current plans in Zone 5 include ten system reliability and economic projects between 2011 and 2025. These projects are in
various stages of development. The most notable planned, proposed, provisional and asset renewal projects in Zone 5, along with
their projected year of completion and the factors driving the need for the projects, are listed below.
Project description
In-service
year
Need driver
Proposed projects
1
Pleasant Prairie-Zion Energy Center 345-kV line
2014
Economics
2
Milwaukee County T-D 138-kV lines
2015
T-D interconnection
3
Arcadian-Waukesha 138-kV line rebuilds
2016
Overloads
4
Spring Valley-Twin Lakes-South Lake Geneva 138-kV line
2019
Overloads and low voltages, provide network service
5
Replace Arcadian 345/138-kV transformers with single transformer
2020
Overloads
6
Replace Bluemound 230/138-kV transformers
7
2011-2012
St. Lawrence-Hartford 138-kV line rebuild
2014
8
Concord-Cooney 138-kV line rebuild
2015
9
Waukesha-Merrill Hills 138-kV line partial rebuild
2015
10
Paris-Albers 138-kV line rebuild
2016
11
Merrill Hills-Summit 138-kV line partial rebuild
2017
12
Edgewood-St. Martins 138-kV line rebuild
2017
13
Mukwonago-Edgewood 138-kV line rebuild
2017
14
Oak Creek-Hayes 138-kV line rebuild
2019
SUBSTATION KEY
Transformer
T-D interconnection
34
New substation
69 kV
161 kV
115 kV
230 kV
138 kV
345 kV
Holland
Butternut
Sheboygan
Fond du Lac
Random Lake
actual routes.
Auburn
Mayville
Fredonia
Spring Brook
Horicon
Barton
Hubbard
Glacier
Juneau Northside
Charter Steel
Dodge
Ozaukee
Washington
Pleasant Valley
Saukville
Pleasant Valley
Cedarsauk
Port Washington SW YD
SM
Arthur Road
7
Hustisford
Hartford
Butler Ridge
Rubicon
Mequon
Maple (WE)
Germantown SW YD
Swan
Concord SW YD
Parkland
Bark River
Sussex
Range Line SW
8
Mill Rd
Lake Michigan
Granville
Tamarack
Glendale
Cornell - Milwaukee
Butler
Cottonwood (WE)
Cooney
Duplainville
Summit
9
11
SM
Waukesha
Jefferson
Arcadian
3
Merrill Hills
T-D
Waukesha
Waukesha
6
SM
Fiebrantz
Tosa
SM
T
Milwaukee
County
2
Bluemound
C
Haymarket Square
28th St
Park Hill
Greves
Everett
Harbor (WE)
Walker
Milwaukee
Moorland
T
Center
O Connor
SM
Shorewood
Lincoln
5
Dewey (WE)
Montana
Norwich
Kansas
Lakeside
Allerton
Barland
Ramsey
Branch
12
Edgewood
Mukwonago
Mukwonago
Nicholson (WE)
St Martins
SM
13
Pennsylvania
Oak Creek 138kV SW YD Oak Creek 230kV SW YD
Oak Creek 230kV SW YD
Root River
SM SM
14
Raymond
Bluff Creek
Tichigan
St Rita
Racine
Tibbits
Racine
Hayes
Lafayette
Sugar Creek
Burlington
Walworth
Air Liquide
Paris
Somers
Elkhorn
Bristol (ALTE)
10
SM
Delavan
Albers
North Lake Geneva
Southwest Delavan
Lake Geneva
SM
Williams Bay
Walworth
SM
SM
Cobblestone
Albers
T
Kenosha
South Lake Geneva
Bain
Twin Lakes (ALTE)
Zenda
4
SM
Kenosha
SM
Pleasant Prairie
Spring Valley (WE)
Richmond Road
1
Katzenberg
ILLINOIS
to Zion Energy Center
35
P.O. Box 47
Waukesha, WI 53187-0047
Helping to keep the lights on, businesses running and communities strong
®
ATC at a glance
Formed in 2001 as the first multi-state, transmission-only utility
n Owner and operator of approximately
9,440 miles of transmission line and 515 substations
n Meeting electric needs of more than five million people
in 72 counties in four states: Wisconsin, Michigan,
Minnesota and Illinois
n $2.9 billion in total assets
n Contact
Mail
P.O. Box 47
n
Waukesha, WI 53187-0047
Toll-free 1-866-899-3204
Web
[email protected]
More detailed information is available at www.atc10yearplan.com
www.atcllc.com
Would you like a speaker from ATC to address your group?
Give us a call, toll-free, at 1.866.899.3204, ext. 6922.

10-Year Transmission System Assessment

Transcription

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