Transmission Projects: At A Glance
Prepared by:
E dison Electric Institute with assistance from
Navigant Consulting, Inc.
MARCH 2011
© 2011 by the Edison Electric Institute (EEI).
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EXECUTIVE SUMMARY
This year marks the fifth publication of EEI’s Transmission At a Glance report. This report showcases
representative transmission projects that EEI’s members have planned for the next ten years and captures the
efforts of EEI member’s continuing focus on transmission investment. This report is not a comprehensive
compilation of all projects that are being undertaken by EEI’s members but the sampling of projects
described does capture a wide variety of project types currently under construction or planned.
The trend in increased investment in the Nation’s transmission infrastructure that began several years ago
continues in response to various needs including reliability and generator interconnection. Despite the
period of economic downturn, the investment being made by EEI member companies is significant and
growing, and reflects preparation for future customer needs. From 2001 to 2009, EEI members invested
nearly $55.31 billion in transmission infrastructure improvements to meet these various needs.2 Over 100
representative projects are highlighted in this report totaling approximately $61.2 billion (nominal dollars)
in expected future transmission system investments from 2010 through the year 2021 and are only a portion
of the total transmission investment anticipated through 2021 by EEI member companies.
This trend in increased transmission investment is due, in part, to several landmark developments in federal
and state policies affecting transmission infrastructure, notably, the Energy Policy Act of 2005 (“EPAct
2005”) and federal transmission pricing policies being implemented by the Federal Energy Regulatory
Commission (“FERC”). The adoption of these pricing policies is helping to sustain the continued level of
investment growth.
Of the total transmission system investments covered by projects in this year’s report several specific subcategories are discussed in greater detail: Interstate Transmission Line System Investments, Transmission
Supporting the Integration of Renewable Resources and Transmission System Investments whose initial
driver is predominantly to meet System Reliability Needs. EEI’s members continuing investment in Smart
Grid related projects are also included in this report. However, it is important to remember that transmission
projects have the potential to address an array of purposes; some are needed to maintain high levels of
reliability that customers expect, and others may deliver a number of benefits such as congestion relief,
reduced system losses, integration of resources and deployment of advanced monitoring systems to enhance
situational awareness. While projects may be designed for a particular primary purpose, they often provide
additional benefits. At the same time, all such projects must be properly integrated with local systems to
maintain the paramount objective of reliable operation of the grid. Moreover, in accordance with FERC’s
2009-14 Strategic Plan, projects need to be developed “through the use of open and transparent processes
1
The historic investment total of $55.3 billion for the 2001 through 2009 period is in 2009 dollars.
2
Sources: EEI’s Annual Property & Plant Capital Investment Survey for actual transmission investment and EEI’s Electric Transmission
Capital Budget & Forecast Survey for planned transmission investment.
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TRANSMISSION PROJECTS: AT A GLANCE — Executive Summary
that include analysis and consideration on a comparable basis of proposed solutions involving any of
generation, transmission, and demand resources.”3
This year there are also several key planning initiatives underway. One such effort is the Eastern
Interconnection Planning Collaborative (“EIPC”). This is the collective effort of Planning Authorities,
with input from stakeholders including state commissions, in the Eastern Interconnection to perform a
coordinated transmission expansion study looking at several possible futures over a twenty year planning
horizon. This effort began in late 2009 and will run through 2012. Other coordinated transmission
expansion efforts are underway in the Electric Reliability Council of Texas (“ERCOT”) through the Long
Term System Assessment done in conjunction with the Electric System Constraints and Needs study and in
the Western Interconnection with Western Electricity Coordinating Council’s (“WECC”) efforts to develop
a 10-year and 20-year transmission expansion plan. Several of the projects highlighted in this report are
included in these studies.
Included in the broad investment categories described above are large interstate projects that span more than
one state and involve numerous entities at the federal, state, and local levels, accounting for approximately
8,300 miles of transmission, representing a $41.1 billion (nominal dollars) investment. These interstate
projects face significant challenges for siting, permitting, cost allocation and cost recovery.
Projects addressing the integration of renewable resources, and where needed, to accommodate the
expected off-peak production, represent the addition or upgrade of 11,400 miles of transmission with an
accompanying transmission investment cost of approximately $39.5 billion (nominal dollars).4
Projects highlighted in this report whose initial driver has been identified as predominantly needed to
meet NERC Reliability Standards and/or Local Transmission Owner reliability criteria account for the
addition or upgrade of 3,600 miles of transmission with an accompanying transmission investment cost of
approximately $15.5 billion (nominal dollars).
Finally, EEI’s member companies are continuing their efforts to modernize the transmission system through
individual funding and the use of Smart Grid Investment Grants (“SGIGs”) for certain projects selected by
the U.S. Department of Energy (“DOE”). These Smart Grid projects augment existing EEI member grid
modernization efforts.
3
Federal Energy Regulatory Commission, The Strategic Plan - FY 2009-2014 at 24 (Oct. 2009) available at
http://www.ferc.gov/about/strat-docs/FY-09-14-strat-plan-print.pdf.
4
At the same time, it must be remembered that there is no transmission project that will facilitate the delivery of renewable power only
– apart from sources connected radially given that wind will generally use the line only 30-40 percent of the time and mainly during offpeak periods.
iv EDISON ELECTRIC INSTITUTE
INTRODUCTION
The trend in increased investment in the Nation’s transmission infrastructure that began several years ago
continues, in response to various needs, including reliability and generator interconnection. The trend in
increased transmission investment is also due, in part, to several landmark developments in federal and
state policies affecting transmission infrastructure (e.g., Energy Policy Act of 2005 (“EPAct 2005”), state
renewable portfolio standards (“RPS”), federal transmission pricing policy, and federal initiatives promoting
transmission Smart Grid development under the American Recovery and Reinvestment Act (“ARRA”). The
increased rate of investment since the advent of these federal policy changes on transmission investment
can be seen in Figure 1. From 2001 to 2009, EEI members invested nearly $55.35 billion in transmission
infrastructure improvements to meet these various needs.6
This Report includes member company projects representative of various project investment category types,
such as: long line, reliability, economic, resource access (conventional and renewable), multi-state, multientity (e.g., projects involving Invester Owned Utilities (“IOU”) and Public Power as collaborative efforts),
and non-transmission line projects. Over 100 representative projects are highlighted in this report totaling
approximately $61.2 billion (nominal dollars) in future transmission system investments through the year
2021. This representative project investment total is only a portion of the total transmission investment
anticipated by 2021 by EEI member companies.
Although several of the projects in this report are in the proposal stages and subject to additional review
of their costs and benefits as well an assessment of alternative projects, they are representative of new
transmission investments advancing in the electric industry.
EEI members continue to actively plan transmission projects to address the need to integrate renewable
resources where and as appropriate, which may include addressing local transmission bottlenecks. However,
integration of renewable resources such as wind, solar, and geothermal generation presents special
challenges. While fossil-fuel generation resources have some flexibility to site in close proximity to the
existing transmission grid, siting of renewable resources is largely dictated by nature, due to the location of
the resource and the inability to transport the fuel source. The transmission investments needed to meet
these challenges are being addressed by EEI’s members through various processes across the United States.
These processes recognize renewable resource locational constraints and address the transmission needed to
interconnect these renewable projects. They also must consider the availability of renewable resources and
energy efficiency being deployed at the regional and local level.
Several planning initiatives are progressing that study the integration of renewable resources into the
transmission grid on an interconnection-wide basis. One such effort is the Eastern Interconnection Planning
5
The historic investment total of $55.3 billion for the 2001 through 2009 period is in 2009 dollars.
6
Sources: EEI’s Annual Property & Plant Capital Investment Survey for actual transmission investment and EEI’s Electric Transmission
Capital Budget & Forecast Survey for planned transmission investment.
EDISON ELECTRIC INSTITUTE v
TRANSMISSION PROJECTS: AT A GLANCE — Introduction
Collaborative (“EIPC”). Transmission overlay planning studies are being performed by the Planning
Authorities in the Eastern Interconnection with the principle investigators being: Entergy, ISO-New England,
MAPPCOR, Midwest ISO, New York ISO, PJM Interconnection, Southern Company, and Tennessee Valley
Authority. Additional input is provided by stakeholders and the state commissions through a Stakeholder Steering
Committee (“SSC”) and the Eastern Interconnection States Planning Council (“EISPIC”).
This effort will perform a coordinated transmission expansion study looking at several possible futures and
a number of scenarios over a twenty year planning horizon. This effort began in late 2009 with Phase I of
the project, an analysis of the aggregate modeling and regional expansion plans of the Planning Authorities
in the Eastern Interconnection. A final Phase I report is anticipated to be completed by the fourth quarter
of 2011. Phase II will build on Phase I results and look at opportunities for potential transmission
enhancements to regional expansion plans to increase the ability to move power. The Phase II report is
anticipated to be complete by the fourth quarter of 2012.
Other coordinated transmission expansion efforts are underway in ERCOT through the Long Term System
Assessment done in conjunction with the Electric System Constraints and Needs study which provides a 10year assessment of system reliability needs. In the Western Interconnection WECC’s Transmission Expansion
Planning Policy Committee (“TEPPC”) has developed a 10-year regional transmission plan framework and
is looking to develop 10-year and 20-year transmission expansion plan.
It is against this backdrop that EEI developed this report on member transmission projects that are intended
to give a broad, but not comprehensive, perspective on the variety of transmission projects being built to
support a number of goals including renewable resource integration and a continuation of EEI member grid
modernization enhancements.
Report Scope
Transmission system investments highlighted in this report may include new lines, line rearrangements
and line reconductoring projects. These investments may also include system improvements that, while
not adding circuit miles, may improve transmission reliability or add transfer capability. This includes new
transmission line technologies and improved transmission operational protocols that have been or will
be applied but does not include Research and Development efforts. Examples of such projects include:
substation projects, equipment replacements, such as, transformers, wave traps, or phase-shifters, and the
addition of reactive compensation, such as, Static VAR Compensators (“SVC”) or dynamic reactive sources.
Also, included in the broad spectrum of Transmission System Improvement projects are Smart Grid related
projects that EEI members selected to showcase. Smart Grid projects highlighted in this report are primarily
transmission related projects that use digital technology to improve reliability, security, and efficiency (both
economic and energy) of the electric system. Examples of these projects are communication improvements
such as Optical Fiber Composite Overhead Ground Wire projects, control center improvements,
integration of EMS/SCADA systems to area and regional control systems; time-synchronized, high quality
measurements from phasor measurement units (“PMUs”); dynamic line ratings, transformer online
vi EDISON ELECTRIC INSTITUTE
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monitoring systems and the associated measurement equipment; smart-grid-enabled distributed controls and
diagnostic tools helping the transmission system to respond to imbalances and limiting their propagation;
transmission automation; and transmission substation automation.
This report also highlights several broad categories of transmission investments that are subcategories of the
total Transmission System Investments highlighted in this report:
1. Interstate Transmission Projects.
2. Transmission Supporting the Integration of Renewable Resources.
3. Transmission Required for System Reliability Needs.
While the focus is to present representative projects of these broad categories, it is important to remember
that transmission projects address an array of purposes and deliver a number of benefits, such as congestion
relief, enhanced regional reliability, and reduced system losses, integration of resources and deployment of
advanced monitoring systems to enhance situational awareness. Therefore, most projects in this report are
multifaceted; that is, they are not developed solely to meet any one specific purpose and can fall into more
than one transmission investment category.
Interstate Transmission Projects
Interstate transmission projects are transmission line improvements that physically span two or more states.
These interstate projects often present additional challenges for siting, permitting, cost allocation and cost
recovery.
Transmission Supporting the Integration of Renewable Resources
Transmission projects, whether transmission line or non-transmission line, that support the integration of
a renewable resource where a renewable energy resource is defined as any energy resource generated from
natural resources such as sunlight, wind, rain, tides and geothermal heat that is replaced rapidly by natural
processes. Renewable energy technologies include: solar power, wind power, hydroelectricity, geothermal,
biomass and biofuels.
Transmission Projects Required for System Reliability Needs
Transmission projects supporting reliability needs are projects whose initial driver has been identified as
predominantly needed to meet either NERC reliability standards (e.g., NERC Transmission Planning TPL
standards) and/or local Transmission Owner reliability criteria. These projects maintain the operational
integrity of the interconnected Bulk Electric System and regardless of state RPS goals or economic incentives
to open new market avenues or access less expensive energy alternatives, these projects will be developed by
Transmission Owners.
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TRANSMISSION PROJECTS: AT A GLANCE — Introduction
A minimum project investment threshold of $50 million for transmission system projects was applied to the
selection of representative projects contained in this report. However, a lower threshold of $20 million was
applied for transmission supporting the integration of renewable resources and a $10 million investment
threshold was applied to any Smart Grid projects that an EEI member selected to showcase. The report
focuses on projects completed in 2010 through 2021 (this represents a 1 year back looking and 10 year
forward looking window).
A brief profile of each company is included along with the representative projects it submitted.
Highlighted Projects Recently Completed
Several projects highlighted in this report have been placed in service in 2010:
• Cranberry - Conover - Plains 138 kV Project
• ETT - Presidio Battery
• Energy Gateway – first segment.
• Missile Site 230 kV Switching Station
• Modifications at the Ft. Bragg Woodruff St. 230 kV Substation and six miles of new line.
• Morgan to Pinnacle Peak 500/230 kV Transmission Project
• Northeast Region Reinforcement Plan - Reconductoring of a portion of the Spier - Rotterdam
Circuit has been completed
• Oncor – Static VAR Compensation – one device placed in service in 2010
• Paddock - Rockdale 345 kV Project
• Salado – Hutto 345 kV Transmission Line Project
• Several line and substation upgrades as part of the New England East - West Solutions (NEEWS)
• Southern Loop Coolidge Connector
• Tehachapi Renewable Transmission Project (TRTP) Segments 1-3
• Thomson 500/230 kV Project
• Wichita - Reno County - Summit 345 kV Line
• Windspeed: Woodward – Northwest 345 kV Line
In 2009, a total investment of $9.3 billion was made by EEI members. EEI member companies plan to
invest an additional $45.1 billion in the transmission system from 2010 to 2013.7
7
ata represents both vertically integrated and stand-alone transmission companies. Planned total industry expenditures are preliminary
D
and estimated from responses to EEI’s Electric Transmission Capital Budget & Forecast Survey. Actual expenditures are from EEI’s Annual Property & Plant Capital Investment Survey & Form 1s. The trend line for 2001 through 2004 is based on a linear approximation
of the reported expenditures for that period. The trend line for estimated expenditures beyond 2004 is based on a linear approximation of
actual and planned industry expenditures for 2005 through 2013.
viii EDISON ELECTRIC INSTITUTE
TRANSMISSION PROJECTS: AT A GLANCE — Introduction
($Millions [Real $2009])
24,000
22,000
20,000
18,000
16,000
Advent of EPAct 2005
14,000
and FERC Pricing Policies
12,000
10,000
8,000
6,000
4,000
2,000
0
2001
2002
2003
2004
2005
2006
2007
Actual Investments
2008
2009 2010p 2011p 2012p 2013p 2014p 2015p 2016p 2017p 2018p 2019p 2020p 2021p
Planned Investments
Linear (Planned Investments)
Figure 1: Transmission Investment ($ millions)
Some General Observations
The overall breakdown of representative transmission investments included in this report and total new or
reconductored transmission circuit miles by interconnection is shown in the diagram below.
$23.2 billion
8,000 miles
$35.7 billion
7,900 miles
$2.3 billion
1,600 miles
*The investment amounts and circuit miles in the diagram above only reflect projects
highlighted in this report. The investment amounts are in nominal dollars.
Figure 2: Representative Project Investment Totals and Added/Reconductored
Circuit Miles by Interconnection
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TRANSMISSION PROJECTS: AT A GLANCE — Introduction
Large interstate projects highlighted in this report spanning more than one state and involving numerous
entities at the federal, state, and local levels account for approximately 8,300 miles of transmission
representing a $41.1 billion (nominal dollars) investment. Projects representative of this investment category
include the TRAIL and the Interstate Reliability Project (IRP) project in the East, the CAPX2020 and
KETA projects in the Midwest, and the Energy Gateway Project in the West.
Interstate
67%
Non-Interstate
33%
Figure 3: Representative Project Interstate vs.
Non-Interstate Investment Percentage
Highlighted projects that facilitate the integration of renewable resources reflect the addition or upgrade of
11,400 miles of transmission with an accompanying transmission investment cost of approximately $39.5 billion
(nominal dollars). Projects representative of this category of investment include the Northeast Energy Link and
Northern Pass Transmission Line projects in the Northeast, Pioneer Transmission, Prairie Wind, Tallgrass, Kansas
V Plan and Green Power Express in the Midwest, and the Tehachapi Renewable Transmission Project (TRTP) and
Canada – Pacific Northwest – California Transmission Projects in the West.
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TRANSMISSION PROJECTS: AT A GLANCE — Introduction
Renewable
65%
Non-Renewable
35%
Figure 4: Representative Project Renewable vs.
Non-Renewable Investment Percentage
Many of the projects in this report have an initial driver to maintain the reliability of the transmission system
and meet NERC Reliability Standards (e.g., the Transmission Planning TPL standards) or Transmission
Owner reliability criteria. Regardless of State RPS goals or economic incentives to open new market avenues
or access less expensive energy alternatives, these projects are required to maintain the operational integrity
of the interconnected Bulk Electric System and are required to be constructed. Highlighted projects that
ensure reliability standards are met reflect the addition or upgrade of 3,600 miles of transmission with an
accompanying transmission investment cost of approximately $15.5 billion (nominal dollars). Projects
representative of this investment category and highlighted in this report include the Susquehanna – Roseland
500 kV Transmission Line Project, NEEWS Projects and M29 Project in the East, Rockdale – West
Middleton and Dubuque County – Cardinal in the Midwest, Plant Vogtle Network Improvement Project
and Thomson 500/230 kV Project in the Southeast, and the San Joaquin Cross Valley Loop in the West.
EDISON ELECTRIC INSTITUTE xi
TRANSMISSION PROJECTS: AT A GLANCE — Introduction
Interconnection/
Economic/
Public Policy
75%
Reliability
25%
Figure 5: Representative Project Reliability Driven vs.
Interconnection/Economic/Public Policy Investment Percentage
The representative projects presented in this report also include a number of non-transmission line projects.
These projects span the range of phase angle regulators, stepdown transformers, Static VAR Compensators
(“SVC”), static capacitors and control system improvements. Also included in this category are other
transmission grid modernization efforts by EEI members relating to ongoing investments in Smart Grid
related projects. While not adding to the overall line mileage, these projects provide tangible benefits to
the transmission system through the creation of additional transfer capability, added controllability and
strengthening the overall transmission system. Non-transmission line projects highlighted in this report
include the NV Energize, Presidio Battery, Optical Fiber Composite Overhead Ground Wire, Oncor Static
VAR Compensator, Online Transformer Monitoring System (“OTMS”), Straits Flow Control, and METC
SCADA Redirection projects.
In summary, much activity is taking place nationally to add needed transmission infrastructure and integrate
large amounts of renewable resources into the transmission systems of EEI’s member companies and support
the modernization of the transmission system.
xii EDISON ELECTRIC INSTITUTE
TABLE OF CONTENTS
EXECUTIVE SUMMARY................................................................................................................... III
INTRODUCTION............................................................................................................................... V
AMERICAN ELECTRIC POWER (AEP)................................................................................................ 1
• Pioneer Transmission, LLC...................................................................................................... 2
• Prairie Wind Transmission, LLC............................................................................................. 2
• Tallgrass Transmission, LLC.................................................................................................... 3
Electric Transmission Texas (ETT).............................................................................................. 4
• Presidio Battery Project............................................................................................................ 4
AMERICAN TRANSMISSION COMPANY (ATC)................................................................................. 5
• Badger Coulee.......................................................................................................................... 5
• Barnhart - Branch River........................................................................................................... 6
• Cranberry - Conover - Plains 138 kV Project.......................................................................... 7
• Dubuque County - Cardinal..................................................................................................... 8
• Paddock - Rockdale 345 kV Project......................................................................................... 8
• Pleasant Prairie - Zion Energy Center..................................................................................... 9
• Rockdale - West Middleton...................................................................................................... 9
• Smart Grid Investment Grant Projects................................................................................... 10
• Straits Flow Control............................................................................................................... 10
ARIZONA PUBLIC SERVICE (APS)................................................................................................... 11
Palo Verde Hub - North Gila 500 kV Project.................................................................................. 11
• Palo Verde Substation - Delany Substation - Sun Valley Substation - Morgan Substation Pinnacle Peak Substation 500 kV Projects............................................................................. 12
BALTIMORE GAS AND ELECTRIC (BGE).......................................................................................... 13
• Coldspring - Erdman 115 kV Network.................................................................................. 13
• Graceton - Raphael Road 230 kV Circuit.............................................................................. 14
• Emory Grove 500/230 kV Station.......................................................................................... 14
CENTERPOINT ENERGY HOUSTON ELECTRIC................................................................................ 15
• Houston Import Project - Fayetteville to Zenith 345 kV....................................................... 15
CONSOLIDATED EDISON, INC. (CON EDISON)............................................................................... 17
• M29 Transmission Project...................................................................................................... 18
FIRSTENERGY................................................................................................................................ 19
Potomac – Appalachian Transmission Highline (PATH) Project................................................ 19
• PATH 765 kV Project............................................................................................................ 20
Trans – Allegheny Interstate Line Company (TrAILCo)............................................................ 21
• Trans – Allegheny Interstate Line (TRAIL) Project.............................................................. 21
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ITC HOLDINGS CORP..................................................................................................................... 22
Green Power Express LP........................................................................................................... 22
• Green Power Express.............................................................................................................. 22
ITC Great Plains....................................................................................................................... 23
• Kansas V-Plan......................................................................................................................... 23
• KETA Project......................................................................................................................... 24
• Oklahoma Hugo - Valiant Project.......................................................................................... 25
ITC Midwest............................................................................................................................ 25
• ITC Midwest Smart Grid Program........................................................................................ 26
ITC Transmission..................................................................................................................... 27
• Michigan Thumb Loop Transmission Project........................................................................ 27
Michigan Electric Transmission Company (METC).................................................................. 28
• METC SCADA Redirection Program................................................................................... 28
KANSAS CITY POWER & LIGHT (KCP&L)........................................................................................ 30
• Iatan - Nashua 345 kV Transmission Line............................................................................. 30
• Sibley - Nebraska City 345 kV Transmission Line................................................................. 31
MINNESOTA POWER...................................................................................................................... 32
• CAPX 2020 Transmission Plan.............................................................................................. 32
• Transmission to Serve Essar Steel Minnesota........................................................................ 34
NATIONAL GRID............................................................................................................................ 35
• Gardenville 115 kV Station Rebuild....................................................................................... 35
• ISO-New England (ISO-NE) Transmission Smart Grid Project.......................................... 36
• New York ISO (NYISO) Transmission Smart Grid Project................................................... 36
• Northeast Energy Link........................................................................................................... 37
• Northeast Region Reinforcement Plan................................................................................... 37
New England East - West Solutions (NEEWS)......................................................................... 38
• Interstate Reliability Project (IRP)......................................................................................... 38
• Rhode Island Reliability Project (RIRP)................................................................................ 39
NORTHEAST UTILITIES (NU).......................................................................................................... 40
• New Hampshire Area Solutions............................................................................................. 40
• New Hampshire Northern Loop Project................................................................................ 41
• The Northern Pass Transmission Line (NPT Line)............................................................... 42
• Optical Fiber Composite Overhead Ground Wire (OPGW) Project.................................... 43
New England East - West Solution Projects (NEEWS).............................................................. 43
• Central Connecticut Reliability Project (CCRP).................................................................... 44
• Greater Springfield Reliability Project (GSRP)...................................................................... 44
• Interstate Reliability Project (IRP)......................................................................................... 45
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NORTHWESTERN ENERGY............................................................................................................. 46
• 500 kV Upgrade Project.......................................................................................................... 46
• Montana Renewable Collector System (MT-RCS)................................................................ 47
• Mountain Sites Transmission Intertie (MSTI)....................................................................... 48
NV ENERGY................................................................................................................................... 49
• Carlson Lake - South Fallon Project (NVEN)....................................................................... 49
• East Valley Master Plan Project (NVES)............................................................................... 50
• One Nevada 500 kV Transmission Intertie (NVES & NVEN)............................................. 50
OGE ENERGY CORP. (OGE)............................................................................................................ 52
• Hitchland – Woodward 345 kV Line..................................................................................... 52
• Seminole – Muskogee 345 kV Line........................................................................................ 53
• Sooner – Cleveland 345 kV Line............................................................................................ 53
• Sooner – Rose Hill 345 kV Line............................................................................................ 54
• Sunnyside – Hugo 345 kV Line............................................................................................. 54
• Windspeed: Woodward – Northwest 345 kV Line................................................................. 55
• Woodward – Kansas 345 kV Line.......................................................................................... 55
• Woodward – Tuco 345 kV Line.............................................................................................. 56
ONCOR ELECTRIC DELIVERY COMPANY, LLC (ONCOR).................................................................. 57
• Bell County East – TNP One 345 kV Transmission Line Project......................................... 57
• Dynamic Line Ratings............................................................................................................ 58
• Fiber Optical Cable Use......................................................................................................... 58
• Oncor CREZ Development................................................................................................... 59
• Phasor Measurement.............................................................................................................. 60
• Salado – Hutto 345 kV Transmission Line Project................................................................. 60
• Static Var Compensation........................................................................................................ 61
PACIFIC GAS AND ELECTRIC (PG&E)............................................................................................. 62
• Canada – Pacific Northwest – California Transmission Project (CNC Project)..................... 62
• Midway – Gregg 500 kV Project............................................................................................ 63
PACIFICORP................................................................................................................................... 64
• Energy Gateway..................................................................................................................... 64
PEPCO HOLDINGS, INC. (PHI)........................................................................................................ 66
• Benning Transmission Project................................................................................................ 66
• Mid-Atlantic Power Pathway (MAPP) Project...................................................................... 67
• PJM N-1-1 Projects (Southern Delmarva)............................................................................. 68
PROGRESS ENERGY...................................................................................................................... 69
• Central Florida - 500/230 kV Capacity Increase.................................................................... 69
• Dundee - Intercession City 230 kV Rebuild and Add 2nd Circuit........................................ 70
• Harris Plant - RTP 230 kV Transmission Line Project.......................................................... 70
• Richmond Plant - Ft. Bragg Woodruff St. 230 kV Transmission Line Project...................... 71
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PUBLIC SERVICE ELECTRIC AND GAS COMPANY (PSE&G)............................................................. 72
• Burlington - Camden 230 kV Network Reinforcement Project............................................. 72
• Roseland - Hudson 230 kV Conversion Baseline Transmission Project................................. 73
• Susquehanna - Roseland 500 kV Transmission Line Project.................................................. 74
• West Orange 230 kV Network Reinforcement Project........................................................... 75
SOUTHERN CALIFORNIA EDISON (SCE)......................................................................................... 76
• Devers – Colorado River and Devers – Valley No. 2 Transmission Project; formerly the
California Portion of Devers – Palo Verde 2 (DPV2) Transmission Project........................ 76
• Eldorado – Ivanpah Transmission Project (EITP).................................................................. 77
• San Joaquin Cross Valley Loop (SJXVL)................................................................................ 78
• Tehachapi Renewable Transmission Project (TRTP)............................................................. 78
• South of Kramer (SOK)......................................................................................................... 80
• West of Devers (WOD)......................................................................................................... 81
• Online Transformer Monitoring System (OTMS)................................................................. 81
• Wide-Area Situation Awareness System (WASAS).............................................................. 82
SOUTHERN COMPANY................................................................................................................... 83
• Dorchester 230 kV Project...................................................................................................... 83
• East Pelham 230/115 kV Transmission Substation Project.................................................... 84
• East Walton - South Hall 500 kV Transmission Line Project................................................ 84
• Holmes Creek - Highland City 230 kV Transmission Line Project....................................... 85
• Kemper County IGCC Plant................................................................................................. 85
• Mobile Area Network Project................................................................................................. 86
• Plant Smith - Laguna Beach - Santa Rosa 230 kV Transmission Line Project...................... 86
• Plant Vogtle Network Improvement Project........................................................................... 87
• South Tuscaloosa - Eutaw Area Network Project................................................................... 87
• Thomson 500/230 kV Project................................................................................................. 88
VERMONT ELECTRIC POWER COMPANY (VELCO)......................................................................... 89
• Ascutney Reliability Upgrade................................................................................................. 89
• Southern Loop Coolidge Connector...................................................................................... 90
WESTAR ENERGY, INC................................................................................................................... 91
• Rose Hill - Sooner 345 kV Transmission Line....................................................................... 91
• Wichita - Reno County - Summit 345 kV Transmission Line............................................... 92
Prairie Wind Transmission, LLC............................................................................................... 93
• Wichita - Medicine Lodge - Woodward 345 kV Transmission Line..................................... 93
XCEL ENERGY INC......................................................................................................................... 94
Northern States Power Companies (NSP Companies)................................................................ 94
• CapX2020 Transmission Plan................................................................................................. 95
• Corridor Project...................................................................................................................... 96
• Pleasant Valley Transmission Project...................................................................................... 97
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TRANSMISSION PROJECTS: AT A GLANCE — TABLE OF CONTENTS
Public Service of Colorado (PSCo)............................................................................................ 98
CO Senate Bill 100 Plan Projects............................................................................................... 98
• Ault - Cherokee 230 kV Transmission Line........................................................................... 98
• Lamar - Front Range.............................................................................................................. 99
• Lamar - Vilas Transmission Project........................................................................................ 99
• Midway - Watertown 345 kV Transmission Line................................................................. 100
• Missile Site 230 kV Switching Station................................................................................. 101
• Missile Site 345 kV Switching Station................................................................................. 101
• Pawnee - Daniels Park 345 kV Transmission Line............................................................... 102
• Pawnee - Smoky Hill 345 kV Transmission Project............................................................. 102
• San Luis - Calumet - Comanche Line................................................................................. 103
Southwestern Public Service (SPS).......................................................................................... 104
• Hitchland - Woodward 345 kV Transmission Line.............................................................. 104
• Tuco - Woodward District 345 kV Transmission Line......................................................... 105
EDISON ELECTRIC INSTITUTE xvii