November 18 2014 Tribal Solar Working Group 1 What is SWAT Southwest Area Transmission SWAT is a voluntary and open study group comprised of regulators governmental entities transmission users transmission owners transmission operators environmental entities and other stakeholders ID: 812438
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Slide1
Arizona Transmission System Overview
November 18, 2014Tribal Solar Working Group
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Slide2What is SWAT?
Southwest Area Transmission (SWAT) is a voluntary and open study group comprised of regulators, governmental entities, transmission users, transmission owners, transmission operators, environmental entities, and other stakeholders.
The goal of SWAT is to promote collaborative regional transmission planning in the Desert Southwest.
http
://
www.westconnect.com/planning_swat.php
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Slide3SWAT Subcommittee Footprints
Arizona
Nevada
California
Utah
Colorado
New
Mexico
SWAT
NM
AZ
Saguaro
Rudd
SWAT Southwest Area Transmission
AZ
Arizona Transmission System
NM New Mexico Transmission
EVSG Eldorado Valley Study Group
Footprint wide
work groups:
Short Circuit, Transmission Corridor
, California Interface, Coal Reduction Assessment Task Force
500kV
345kV
Web Sites
WestConnect:
http://www.westconnect.com/
SWAT:
http://www.westconnect.com/planning_swat.php
Browning
Kyrene
Pinnacle
Peak
McKinley
Springerville
Silver
King
Greenlee
Tortolita
W W
Luna
Coronado
Cholla
Moenkopi
South
Vail
Hidalgo
Diablo
Afton
Caliente
Newman
Arroyo
Amrad
Artesia
Blackwater
BA
Taos
Ojo
San Juan
Four
Corners
West Mesa
Glen
Canyon
Mead
Crystal
Shiprock
Navajo
Devers
Palo
Verde
Hub
Perkins
Liberty
North Gila
Norton
Sandia
Winchester
Market Place
McCullough
Eldorado
Mira Loma
Colorado River
Red Bluff
Lugo
EVSG
Victorville
Harry Allen
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Slide4SWAT in Relation to other Planning Regions
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Slide5Difference between “Transmission” and “Distribution”
Generally, “transmission” means 100 kV or greater. It is the power system used for wholesale transactions, and interconnection is regulated by the Federal Energy Regulatory Commission.
“Distribution” is generally less than 100 kV and interconnection rules are often defined by state, local utility, or Tribe.This presentation only focuses on the transmission level, but distribution level projects are still important to the entire grid.5
Slide6Major Arizona Transmission
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Slide7http://www.azcc.gov/divisions/utilities/electric.asp
Map of AZ Electric Companies
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Slide8Ownership of Transmission in Arizona
Arizona Public ServiceSalt River ProjectSouthwest Transmission CooperativeTucson Electric Power
Western Area Power Administration – Desert Southwest Region8
Slide9APS
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Slide10APS
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Slide11APS
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Slide12SRP
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Slide1313
Slide1414
Slide1515
Slide1616
Slide17SWTC
Northern
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Slide18SWTC
Southern
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Slide19SWTC
Western
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Slide20TEP
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Slide21WAPA-DSW
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Slide22Some Developer Transmission Projects
Centennial West Clean Line (2020)http://www.centennialwestcleanline.com/site/home
Harcuvar Transmission Project (TBD)Long View Energy Exchange (2021)http://longviewee.com/Southline (2017)
http
://www.southlinetransmissionproject.com
/
SunZia (2018)http://www.sunzia.net/22
Slide23Centennial West Clean Line
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Slide24Harcuvar Transmission Project
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Slide25Longview Energy Exchange
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Slide26Southline
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Slide27Southline (renewable resources map)
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Slide28SunZia
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Slide29SunZia (solar resources map)
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Slide30Transmission Projects Under Development
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Slide31WECC Paths
http://www.wiebgridtracker.com/
The flows on some transmission lines interact with one another, and they are grouped together as “paths
.
”
C
ongestion on these paths can be a considerable limitation on the ability to move power between regions of the grid. In Arizona, major paths are:Path 22 (Southwest of Four Corners), Path 23 (Four Corners), Path 50 (Cholla to Pinnacle Peak), Path 51 (Southern Navajo), Path 54 (Coronado to Silverking) – Limit flows from coal resource areas to central ArizonaPath 49, East of the Colorado River - Limits exports to CaliforniaPath Reports: https://www.wecc.biz/Reliability/TAS_PathReports_Combined_FINAL.pdfWECC Path Rating Catalog (non-public)31
Slide32Maps of Existing and Future Transmission Projects
Arizona Utility Ten Year Plans and Biennial Transmission Assessment filings
http://edocket.azcc.gov/Docket/DocketDetailSearch?docketId=17769TEPPChttps://www.wecc.biz/TransmissionExpansionPlanning/Pages/Project-Information-Portal2.aspxSWAT/WestConnecthttp://
www.westconnect.com/documents_results.php?categoryid=83
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Slide33Land Resource Maps for Development of New Generation and Transmission
US Bureau of Land Management,Arizona Office
http://www.blm.gov/az/st/en/prog/energy/arra_solar.htmlOpen Energy Informationhttp://en.openei.org/wiki/Gateway:Transmission
TEPPC Environmental Data Viewer
https://
www.wecc.biz/TransmissionExpansionPlanning/Pages/Environmental-and-Cultural-Considerations.aspx
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Slide34Questions or More Information About SWAT
Patrick HarwoodWestern Area Power Administration
harwood@wapa.gov602-605-2883
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