2 Quarter Stakeholder Transmission Planning Meeting June 5 ...

June 5, 2018TEP & SWTC 2nd Quarter

Stakeholder Meeting 1

2nd Quarter

Stakeholder Transmission Planning Meeting

June 5, 2018

Unisource Energy Headquarters

88 E. Broadway

Tucson, AZ

11:00 a.m. – 12:30 p.m.

1) Welcome, Introductions, and Meeting Overview2) Review of action Items from 2017 4th Quarter

Meeting3) SWAT and WestConnect Overview4) AEPCO 2017 Study Update5) TEP/UNSE 2017 Study Update6) Stakeholder Questions/Comments7) Review of 2018 4th Quarter Meeting Action Items

June 5, 2018TEP & AEPCO 2nd Quarter


Welcome

Introductions

Meeting Overview



To provide for stakeholder input into the transmission planning process by:◦ Facilitating open, transparent, and coordinated

transmission planning with all affected stakeholders as required by FERC (OATT Attachment K)◦ Describing the 10 Year transmission planning

process ◦ Presenting 10 Year Transmission Plans◦ Supporting and coordinating stakeholder

participation in Regional Planning Efforts (SWAT, WestConnect, and WECC)◦ Accommodating Economic Study Requests



For example, joint planning sessions with Pima County jurisdictions

Today, time is needed to meet FERC requirements to involve Stakeholders in the regional transmission planning process



There were no action items



Planning Groups in Western Interconnection SWAT Footprint Website information WestConnect Update

June 5, 2018 7TEP & AEPCO 2nd Quarter

Stakeholder Meeting

The Southwest Area Transmission (SWAT) is a sub-regional planning group within the Western Interconnection

It is comprised of transmission regulators/government entities, transmission users, transmission owners, transmission operators and environmental entities

The goal of SWAT is to promote regional planning in the Desert Southwest. It includes transmission planning subcommittees, which are overseen by the SWAT Oversight Committee

SWAT is governed by a Charter



WestConnect is composed of utility companies providing transmission of electricity in the United States

Its members work collaboratively to assess stakeholder and market needs and to develop cost-effective market enhancements to the western wholesale electricity market

WestConnect is committed to coordinating its work with other regional industry efforts to achieve as much consistency as possible in the Western Interconnection





CCPG

NWPP Area

WECC(RAC)

CAISOCTPG

Others

LADWP

RETI

Col.Grid

SWAT

NTTG

SSPG

WestConnect

NTAC

WGA & CREPC

NMRETA

WestConnect Footprint with Sub-Regional Planning Groups

SWAT – http://regplanning.westconnect.com/swat.htm

SSPG – http://regplanning.westconnect.com/sspg.htm

CCPG – http://regplanning.westconnect.com/ccpg.htm

WestConnect – http://www.westconnect.com

SSPGSierra Subregional

Planning Group

SWATSouthwest

AreaTransmission

CCPGColorado

CoordinatedPlanning

Group





11/28/2017070670-1

PinnaclePeak

McKinley

Springerville

Silver King

TortolitaSaguaro

W W

Kyrene

Luna

Coronado

ChollaMoenkopi

South Vail HidalgoDiablo

Afton

CalienteNewman

Arroyo

AmradArtesia

Blackwater

BA

TaosOjoSan Juan

FourCorners

GlenCanyonMarket

Place

McCullough

Mead

Crystal

ShiprockNavajo

Devers

PaloVerdeHub

Perkins

Liberty

North Gila

Sandia

Norton

Winchester

Arizona

Nevada

California

Utah Colorado

NewMexico

SWAT FOOTPRINT

SWAT

Greenlee

Browning

Rudd

West Mesa

500kV345kV

Web SitesWestConnect: http://www.westconnect.com/

SWAT: http://regplanning.westconnect.com/swat.htm



11/28/2017070670-2

SWAT Subcommittee Footprints

Arizona

Nevada

California

Utah Colorado

NewMexico

SWAT

NM

Saguaro

Rudd

SWAT Southwest Area TransmissionSWAT-AZ Arizona Transmission SubcommitteeNM New Mexico TransmissionEVSG Eldorado Valley Study Group

Footprint wide committees: Short Circuit, Transmission Corridor,

500kV345kV

Web SitesWestConnect: http://www.westconnect.com/

SWAT: http://regplanning.westconnect.com/swat.htm

Browning

Kyrene

PinnaclePeak

McKinley

Springerville

SilverKing

Greenlee

Tortolita

W W

Luna

Coronado

ChollaMoenkopi

SouthVail

Hidalgo

Diablo

Afton

CalienteNewman

Arroyo

AmradArtesia

Blackwater

BA

TaosOjoSan Juan

FourCorners

West Mesa

GlenCanyonMarket

Place

McCullough

Mead

Crystal

Shiprock

Navajo

Devers

PaloVerdeHub

Perkins

Liberty

North Gila

Norton

Sandia

Winchester

EVSG

Information on SWAT can be found at the WestConnect website: ◦ http://regplanning.westconnect.com/swat.htm

WestConnect Site contains information about sub-regional planning groups within SWAT, planning calendars, and documents

Chair: Mark Stoker, APS



http://regplanning.westconnect.com/swat.htm

SWAT Recent Efforts:◦ Review major project map and Spreadsheet◦ Arizona utilities filed ten year plans with the ACC

in January◦ Review SWAT-AZ case development◦ Coodination of base cases for use in 2018 TPL

studies◦ Next Meeting Tenatively Q4, 2018 Webinar only



2018-2019 Study Cycle◦ Efforts since Q4 2017 Stakeholder Meeting Development of Study Plan

Study Plan was approved on March 14, 2018 Development of Study Models in-progress

Power Flow Models Production Cost Models First Draft of the 2028 Production Cost Model was provided by WECC

on 4/3 2028 ADS Powerflow Planning case was finalized by WECC on 4/18 2028 Light Spring Case was developed at WestConnect’s request and

was provided on 3/22/18



Next Meetings◦ Planning Subcommittee May 12, 2018 in Denver◦ Cost Allocation Subcommittee May 12, 2018 in Denver◦ Planning Management Committee May 13, 2018 in Denver

June 5, 2018TEP & SWTC 2nd Quarter


AEPCO Planning Calendar & Methodology 2018-2027 Ten-Year Plan Review Interconnection Requests and Transmission

Service Requests Economic Study Requests of AEPCO Stakeholder comments/questions on study

plan Stakeholder submittal of requests for

additional transmission studies



Planning Calendar for Ten-Year Planning CycleAEPCO Transmission

Planning10 Year Plan

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

StakeholderInput

OtherRegional

Coordination

ActivitiesThroughout the Year:

10 Yr. Plan – Filed with the ACC by Jan. 31st.

Develop 10 Yr. base casesFrom SWAT-AZ coordinated

Seed Cases

AEPCO Load Forecastfor Class A Members

10 Yr. study plan effort -Determination of projects,

timings, and scope

Activities related to:1. Development of AEPCO Construction Work Plans and Long Range Plans2. Demonstration of compliance with NERC Standards3. WECC Planning Model Develop- ment and Reports4. Regulatory Sub- mittals

10 Yr. Plan final developmentfor submittal to ACC and

WestConnect

Arizona UtilitiesCoordinate the development

of seed casesThrough SWAT-AZ from

WECC Base cases

10 Yr. Plans filedBy others

2nd Quarter Stakeholder Meeting – StakeholderInput on studies, request study alternatives,

updates on current projects

July 31st – Network Transmission Customers Loads & Resources Forecast

1. Class A Operating Committee (CAOC) Meetings between AEPCO and Class A Members – currently 3 times per year

2. WestConnect Meetings a. Steering Committee b. PMC c. PS Subcommittee

3. SWAT Meetings a. Oversight Committee b. SWAT-AZ c. Short-circuit Working Group

4. ACC a. BTA b. Other Requests

4th Quarter Stakeholder Meeting – Review draftOf current 10 Yr. plan, discussion on Economic

Study requests, receive Stakeholder input

Jan 31st – Timeframe to submitTEPPC Economic Study Requests



NERC Planning Standards WECC System Performance Regional

Business Practices Internal planning criteria◦ AEPCO Planning Guidelines are posted on the

AEPCO OASIS at http://www.oasis.oati.com/swtc/



http://www.oasis.oati.com/swtc/

The 2018-2027 Ten Year Plan was submitted to the ACC by the end of January 2018.

No major changes were made from last year’s plan On-going discussions throughout the year at the

Class A Operating Committee (CAOC) Meetings may necessitate minor changes to this plan in the future.

As changes are approved by the AEPCO Board, they will be incorporated into the next filing at WestConnect and the ACC.



Ten Year Plan Projects in Northern Area:

• AEPCO is acquiring two distressed 345/230 kV 200 MVA Transformers. One of these is planned to be installed at AEPCO’s Greenlee Substation (2019)

• Move one of the two 50 MVArCapacitor Banks from Morenci 230 kV Substation to Dos Condados 230 kV Substation (2018)



TOHAYDEN

WESTERN 115 kV69 kV LINES115 kV LINES138 kV LINES230 kV LINES345 kV LINES500 kV LINES

AEPCO SUBSTATION

OTHER SUBSTATION

AEPCO GENERATION

FUTURE SUBSTATION

AEPCO NORTHERN AREA SYSTEM

WINCHESTER

APACHE

REDTAIL

HACKBERRY

DOS CONDADOS

MORENCI

AEPCOGREENLEE

TEPGREENLEE

TOVAIL

TOSPRINGERVILLE

TOBUTTERFIELD

BOWIE

SAN SIMONSTEWART

ROMNEY

SAN JOSE

THATCHER

BONITA

MORTENSON

HOOKER

TOADAMS TAP

KANSASSETTLEMENT

WILLCOX

COCHISE

TOCHIRICAHUA

SSVEC 69 kV

TEP 345 kV

AEPCO 230 kV

TEP 345 kV

AEPCO 230 kVAEPCO 115 kV

TEP 345 k

V

SSVEC 69 kVSSVEC 69 kV

SSVEC 69 kV

AEPCO 69 kVGCEC 69 kV

GC

EC 69 kV

SSVEC 69 kV

GCEC 69 kVGCEC 69 kVGCEC 69 kV SSVEC

69 kV

GCEC 69 kV

AEPCO

230 kV

AEPCO

230 kV

TEP

345

kV

AEPCO

115 kV

TODUNCAN

TODUNCAN

GCEC 69 kV

CACTUS

SAFFORD

CORK

FREEMAN

NEWTHATCHER

GC

EC 69 kV

GCEC 69 kV

AEPCO

230 kV

GC

EC 69 kV

SSVEC 69 kV

AEPCO 69 kV

SANMANUEL

SWIFT TRAIL

GCEC 69 kV

TALLEY

SSVE

C 6

9 kV

(2018)

2nd 345/230 kV Transformer at AEPCO

Greenlee (2019)

Ten Year Plan Projects in Southern Area:

• Tombstone Project is currently in cost Allocation negotiations, and still requires AEPCO Board Approval. The project is planned in 2021 time frame

• Bagdad substation project will provide mutual backup for APS loads by installing a 115/69 kV transformer and connecting to APS’s Bagdad substation. The project is currently being discussed for cost allocation with APS



46 & 69 kV LINES115 kV LINES138 kV LINES230 kV LINES345 kV LINES500 kV LINES

AEPCO SUBSTATION

OTHER SUBSTATION

AEPCO GENERATION

AEPCO SOUTHERN AREA SYSTEM

FUTURE SUBSTATION

BUTTERFIELD

SSVEC 69 kVPANTANO

ADAMSTAP

COCHISE

KANSASSETTLEMENT

CHIRICAHUA

WEBB

McNEALMURAL

KARTCHNERSAN

RAFAEL

APACHE

TO REDTAIL

TO WINCHESTER

TO NOGALES TAP

TEP 138 kV

TEP 138 kV

AEPCO

230 kVAEPC

O 230 kV

APS 115 kV

WESTERN 115 kV

SSVEC 69 kV

SSVEC 69 kV

APS 69 kV

TEP 46 kV

FT. HUACHUCASUB

SSVEC 69 kV

SSVEC 69 kV

SSVEC 69 kV

SSVEC 69 kV

SSVEC 69 kV

SSVEC 69 kV

MESCALBENSON

ST. DAVID

SHEIFFELIN

TOMBSTONE

PUEBLOBELLA VISTA

SIERRA VISTA

KEATINGHAWES

RAMSEY

SSVEC 69 kV

SSVEC 69 kV

SSVEC 69 kV

SAN PEDRO

SSVEC 69 kV

AEPCO

230 kV

AEPCO

115 kV AEPCO 230 k

V

TO BICKNELL

TO VAIL

TO SOUTH

HUACHUCA

APS 115 kV

SSVEC 69 kV

AEPCO

115 kV

AEPCO 115 kV

AEPCO 230 kV

COTTONWOOD

BOOTHILL

PALOMINAS

DON LUISAPS 69 kV APS 69 kV

(2016)

HEREFORD

(2016)

SSVEC 69 kV

APS 69 kV

(2021)

(2017)

AEPCO 69 kVTJ



Ten Year Plan Projects in Western Area:

• Capacitor Bank Additions planned at:

• Valencia (2018)

• AEPCO is acquiring two distressed 345/230 kV 200 MVA Transformers. One of these is planned to be installed at AEPCO’s Bicknell Substation (2019)

• Valencia to CAP Black Mountain Interconnection (2019)

• New Saguaro to Thornydale to Marana 115 kV line (2020)

VAIL

THREEPOINTS

NOGALES TAP

RATTLESNAKE

AVRA VALLEY

VALENCIA

NORTH LOOP

THORNYDALE WESTER

N 115 kV

TUCSON

DEL BAC

WESTER

N 115 kV

AEPCO

115 kV)

SANDARIO

BLACK MOUNTAIN

TWIN PEAKS

BRAWLEY

SAN XAVIER

BICKNELL

WESTERN 115 kV

MARANA

SAGUARO

69 kV LINES115 kV LINES138 kV LINES230 kV LINES345 kV LINES500 kV LINES

AEPCO SUBSTATION

OTHER SUBSTATION

AEPCO GENERATION

FUTURE SUBSTATION

WESTERN 115 k

V

ORACLE

WESTERN 115 kV

CAP 115 kV

CAP

AEPCO 115 kV

AEPCO 115 kV

CAP 115 kV

WESTERN 115 kV

CAP 115 kV

CAPSANDARIO

WESTERN 115 kV

SAHUARITAPANTANO

BUTTERFIELD

ADAMS TAP

TO REDTAIL

AEPCO WESTERN AREA SYSTEM

APACHE

NEWTUCSON

WINCHESTER

TO GREENLEE/

SPRINGERVILLE

WESTERN 115 kV

AEPCO 345 kV

AEPCO 345 kV

TEP

345

kV

WESTERN 115 kV

AEPCO

115 kVAEPC

O 230 kV

SANMANUEL

APS 115 kVAPS 115 kV

APS 115 kV

AEPCO

115 kV

TO HAYDEN

SADDLEBROOKERANCH

TEP

345

kV

TEP 345 kV

TORTOLITA

AEPCO/TEP 345 kVSOUTH

TOPINAL WEST

AEPCO/TEP

345 kVAEPCO/TEP

345 kV

TEP 46 kV

AEPCO/TEP

345 kVCAP

AEPCO

115 kVAEPC

O 115 kV

AEPCO 115 kV

MARANATAP

CAP 115 kV

(2017)

(2017)

(2019)

TO ED-5

AEPCO 230 kV

AEPCO 115 kV

AEPCO 115 kV

AEPCO/CAP 115 kV

(2020)

(2020)

2nd 345/230 kV Transformer at Bicknell (2019)

(2018)

Generation interconnection requests:◦ Two interconnection requests

Transmission interconnection requests◦ One interconnection request

Currently involved in transmission study work with the following entities:◦ Tucson Electric Power Company◦ Arizona Public Service Company◦ Western Area Power Administration◦ Central Arizona Project



Currently no Economic Study Requests have been received by AEPCO



Any Questions?



Open Discussion◦ Stakeholder submittal of requests for additional transmission

studies:

Requests can be made at any time to: [email protected]



mailto:[email protected]

TEP/UNSE Planning Calendar & Methodology 2018-2027 Ten Year Plan Review Interconnection Requests and Transmission

Service Requests Economic Study Requests of TEP Stakeholder comments/questions on study

plan Stakeholder submittal of requests for

additional transmission studies





10 Yr Plan – Filed with ACC by Jan 31

TEP/UNSE TransmissionPlanning

10 Year Plan

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

TEP Corporate Load Forecast

StakeholderInput

OtherRegional

Coordination

10 Yr Plans filed by others

ActivitiesThroughout the Year

● TEP/Transmission Customer Meetings● TEP/AEPCO/WAPA Meetings● Coordination Meetings● SWAT ○ Oversight/SWAT-AZ ○ Short-Circuit Working

Group● ACC ○ BTA ○ Summer Preparedness ○ Others as Required● WestConnect ○ Steering ○ PMC ○ Planning Subcommittee ○ Cost Allocation Subcommittee● WECC ○ RAC ○ StS ○ SDS ○ MS ○ MVWG ○ PMWG ○ DS ○ SDWG ○ PDWG

Arizona Utilities coordinated seed

case development – from WestConnect

cases

2nd Quarter Stakeholder Meeting – Stakeholder input on studies, request study

alternatives, updates on current projects

Develop 10 Yr base cases from AZ seed cases

10 Yr study plan effort –

Determination of projects, timing

and scope

Activities related to: ● Development of TEP long range capital budget projects● Demonstration of compliance with NERC Standards● WECC Planning Model Development and Reports● Regulatory Submittals

10 Yr plan final development for submittal to ACC and WestConnect

Sep 1 – Network Transmission/other Transmission Customers Load & Resource

Forecast

4th Quarter Stakeholder Meeting – Review draft of current 10 Yr pan, discuss Economic Study Requests, receive Stakeholder input

Planning Calendar for Ten-Year Planning Cycle

Nov 21 – Deadline to submit Economic Study Requests for 4th Quarter Meeting review

NERC Planning Standards WECC System Performance Criteria Internal planning criteria◦ TEP Transmission Planning Criteria and

Assumptions are posted on the TEP OASIS at http://www.oasis.oati.com/tepc/



http://www.oasis.oati.com/tepc/



2018-2027 Ten Year Plan was submitted to the ACC by January 31, 2018

Proposed 2018-2027 Ten Year Plan was presented at the WestConnect Stakeholder meeting on November 16, 2017



Planned Projects◦ Hassayampa – Pinal

West 500kV Loop-In to Jojoba Switchyard (2020)◦ Reconfiguration of

Greenlee Substation (2018)◦ Reconfiguration of

South Substation (2019)◦ Vail Breaker Addition

(2018)

Hidalgo

Ya-Ta-Hey

Silver KingBrowning

Kyrene

Palo Verde / Hassayampa

WestwingPinnacle

Peak

North Gila

Greenlee

Apache

Red Tail

Dos Condados

Morenci

GreenleeSWTC

ButterfieldPantanoBicknell

Tortolita

Saguaro

Pinal West

Jojoba

South Vail

Winchester

AbelDuke

Pinal Central

TBD

TBD

TBD

TBD

TBD

Navajo

Moenkopi

Glen Canyon

McKinley

Cholla

Coronado

Springerville

Irvington TBDTBD

PD-Morenci

Frisco

Copper Verde

Luna

San Juan

Four Corners

Shiprock

Sigurd

Liberty

Gila River (Jointly owned)

Hassayampa – Pinal West 500kV

Line Loop-in to Jojoba Switchyard

(2020) Gila Bend

500 kV345 kV230 kV

Facilities Proposed by TEP

Jointly Planned / Conceptual Facilities

Facilities Planned / Conceptual by Others

PNM

EPE

EPE

South Conversion to Breaker-and-a-

Half(2019)

Greenlee Conversion to Breaker-and-a-Half

(2018)

EHV Ten Year Plan Map(2018-2027)



Conceptual Projects (TBD)◦ Vail to Irvington 345kV◦ Irvington to South 345kV◦ Saguaro to Winchester

500kV◦ Vail to South #2 345kV◦ Springerville to Greenlee

#3 345kV◦ Tortolita to South 345kV◦ Westwing to South #2

345kV◦ Gila River to Pinal West

500kV

Hidalgo

Ya-Ta-Hey

Silver KingBrowning

Kyrene

Palo Verde / Hassayampa

WestwingPinnacle

Peak

North Gila

Greenlee

Apache

Red Tail

Dos Condados

Morenci

GreenleeSWTC

ButterfieldPantanoBicknell

Tortolita

Saguaro

Pinal West

Jojoba

South Vail

Winchester

AbelDuke

Pinal Central

TBD

TBD

TBD

TBD

TBD

Navajo

Moenkopi

Glen Canyon

McKinley

Cholla

Coronado

Springerville

Irvington TBDTBD

PD-Morenci

Frisco

Copper Verde

Luna

San Juan

Four Corners

Shiprock

Sigurd

Liberty

Gila River (Jointly owned)

Hassayampa – Pinal West 500kV

Line Loop-in to Jojoba Switchyard

(2020) Gila Bend

500 kV345 kV230 kV

Facilities Proposed by TEP

Jointly Planned / Conceptual Facilities

Facilities Planned / Conceptual by Others

PNM

EPE

EPE

South Conversion to Breaker-and-a-

Half(2019)

Greenlee Conversion to Breaker-and-a-Half

(2018)

EHV Ten Year Plan Map(2018-2027)



RILLITO CRAYCROFT- BARRIL

ROBERTS

WEST INA

(Yr 2018)

(Yr 2023)

(Yr 2021)

SNYDER

TUCSON

22ND STKINO

(Yr 2024)

CHOLLA

TORTOLITA 138

PINAL CENTRAL 500

TORTOLITA 500

DREXEL

SOUTH 345

Ft. Huachuca

MIDVA

LE

AS&R MISSION

LOS REALES

RBWILMOT

T1

T2

(Yr 2022)HARTT

Duval CLEAR

Switchyard

CYPRUS SIERRITA

CANOA RANCH

(Yr 2019)

Rosemont

SOUTH 138

ORANGE GROVE

MARANA

(Yr 2025)NARANJA

DEL CERRO

DMP

NORTHEAST

EAST LOOP

SAGUARO 500

GREEN VALLEY

RANCHO VISTOSO

VAIL

VAIL

345VA

IL2 345

IRVING

TON

SANTA CRUZ

PANTANOSPANISH

TRAIL

LA CANADA

NO

RTH LO

OP

(Yr 2024)

CIENEGA

(Yr 2021)

(Yr 2019)

(Yr 2020)

Toro

(Yr 2018)

T3

138kV Ten Year Plan Map(2018 – 2027)

= Existing Substation

= New SubstationsExisting EHV / HV Line

= New 138kV Line= Reconductored 138kV Line= New EHV Line

CORONA(Yr 2026)

(Yr 2

018)

Kantor

SONORAN

(Yr 2020)

(Yr 2020)

(Yr 2020) (Yr 2020)

(Yr 2

020)

(Yr 2

020)

(Yr 2022)

(Yr 2024)

(Yr 2019)

= Rebuilt Substations

WILMOTENERGY CENTER

(Yr 2020)

(Yr 2

022)

(Yr 2021)

Planned Projects (2018)◦ Loop-in of La Canada – Rillito 138kV Line to New

Orange Grove Substation◦ North Loop – Rancho Vistoso 138kV Line Re-

conductor◦ Irvington – 22nd Street 138kV Line Re-Conductor◦ DMP – Northeast 138kV Line Uprate◦ North Loop – Rillito 138kV Line Uprate◦ Northeast Tie Breaker Replacement


Stakeholder Meeting

Planned Projects (2019)◦ La Canada – Orange Grove 138kV Uprate◦ Loop-in of South – Green Valley 138kV Line to New Toro

Switchyard◦ New Toro – Rosemont 138kV Line◦ Loop-in of Irvington – South Line to New Sonoran

Substation◦ Relocation of Irvington Substation and conversion to

breaker and a half configuration◦ Reciprocating Engines (RICE) Installation at Irvington –

Phase I (100 MW)◦ North Loop – Rillito 138kV Line Uprate◦ Capacitor Bank #1 Addition at Orange Grove Substation◦ Capacitor Bank #2 Addition at Tortolita Substation


Stakeholder Meeting

Planned Projects (2020)◦ Loop-in of Roberts – East Loop 138kV Line to New Harrison

Substation◦ Rancho Vistoso – La Canada 138kV Line Reconductor◦ North Loop – Rillito 138kV Line Uprate◦ La Canada – Orange Grove 138kV Line Reconductor ◦ Orange Grove – Rillito 138kV Line Reconductor◦ Irvington – Vail 138kV Line Reconductor◦ Tucson – Del Cerro 138kV Line Reconductor◦ Loop-in of Irvington - Vail to new Sonoran Substation◦ Loop-in of Irvington – Robert Bills to new Sonoran Substation◦ New Sonoran – Wilmot Energy Center 138kV Line◦ Reciprocating Engines (RICE) Installation at Irvington – Phase II

(additional 100 MW)◦ Capacitor Bank #1 Addition at 22nd Street Substation◦ Capacitor Bank #1 Addition at Pantano Substation◦ Capacitor Bank #3 Addition at Irvington Substation


Stakeholder Meeting

Planned Projects (2021)◦ Reconfiguration of DMP Substation◦ New Irvington – Tucson #2 138kV Line with Loop-in

to New Kino Substation◦ Capacitor Bank #1 Addition at Drexel Substation◦ Capacitor Bank #3 Addition at West Ina Substation◦ Capacitor Bank #3 Addition at Tortolita Substation


Stakeholder Meeting

Planned Projects (2022)◦ Loop-in of Toro – Green Valley 138kV Line to New

Hartt Substation◦ North Loop – DMP 138kV Line Uprate◦ North Loop – Rillito 138kV Line Uprate◦ Double Circuit Rebuild of Tortolita – North Loop #5

138kV Line◦ New Wilmot Energy Center – South 138kV Line◦ Capacitor Bank #4 Addition at Tortolita Substation◦ Capacitor Bank #3 Addition at North Loop

Substation◦ Capacitor Bank #3 Addition at DMP Substation


Stakeholder Meeting

Planned Projects (2023)◦ Loop-in of Northeast – Snyder 138kV Line to New

Craycroft Baril Substation◦ South – Toro 138kV Line Uprate◦ North Loop – DMP 138kV Line Uprate◦ North Loop – Rillito 138kV Line Uprate


Stakeholder Meeting

Planned Projects (2024)◦ Loop-in of Tortolita – North Loop #5 138kV Line to

New Marana Substation◦ South – Toro 138kV Line Uprate◦ North Loop – DMP 138kV Line Uprate◦ North Loop – Rillito 138kV Line Uprate◦ New North Loop – Del Cerro 138kV Line◦ Capacitor Bank #4 Addition at North Loop

Substation


Stakeholder Meeting

Planned Projects (2025)◦ Loop-in of North Loop – Rancho Vistoso 138kV Line

to New Naranja Substation Planned Projects (2026)◦ Loop-in of Irvington – South 138kV Line to New

Corona Substation Planned Projects (2027)◦ None


Stakeholder Meeting

Conceptual Projects◦ Vail – East Loop 138kV Line #3◦ Irvington – Robert Bills-Wilmot 138kV Line

Reconductor◦ Irvington – Drexel – Midvale – South 138kV Line

Reconductor◦ Irvington – South 138kV Reconductor◦ Irvington – 22nd Street 138kV Line #2


Stakeholder Meeting

1) Golden Valley 230kV Line (TBD)

2) Griffith-North Havasu Transmission Project (TBD)



Peacock

Prescott

Round Valley

Peacock

Hilltop

Griffith (3 units)

McConnico

McCullough

Davis (5 units)

F

H

Black Mesa

TopockSouth Point

(3 units)

North Havasu

Parker (4 units)

Camino

Harcuvar

Gene

Eagle Eye

Hassayampa Tap

Bouse

Wellton Mohawk

Kofa

Dome Tap

Gila

Gila

Knob

Pilot Knob

Niland (IID)

Headgate Rock

Blythe (3 units)

Blythe (SCE)

F

H

F Liberty

Black Mtn 69kV (2 units)

F

Eagle Mtn

Iron Mtn

Gold Mine

Mead

Franconia

Havasu

Franconia-Griffith sectionfuture 230 kV & 69 kV

(TBD)

RWestern Wind 69kV

230kV (WAPA)345kV (WAPA)

69kV UNSE161kV WAPA

Existing Facilities NEW Facilities

230kV (UNSE)

Fossil Fuel Generation

Renewable Generation

Hydro Generation

F

H

R

Golden Valley 230kV Transmission line (future)

1) Mexico DC Interconnection (2019)

2) Partial Vail – Kantor 138kV Line Reconductor (2019)

3) Sonoita – Valencia 138kV Line Uprate (2025)

4) Kantor Capacitor Bank Additions (2019)



Existing Facilities

Vail

To Adams(WESTERN)

Nogales TapDel Bac

To Tucson(WESTERN)

Valencia(4 units)

Sonoita

Canez

Kantor345 kV

138 kV

115 kV

F

F Fossil Fuel Generation

138kV (joint)

230kV (joint)

United StatesMexico

GatewayDC back to

back

Future upgradeRelated to

Gateway project

• Activity Since 4th Quarter Stakeholder Meeting New Interconnection Requests – 1 Completed Feasibility Studies – 0 Completed System Impacts Studies – 4 Completed Facility Studies – 3 Projects Interconnected – 0 Interconnection Projects Withdrawn – 0 New Long-Term Firm Transmission Service Requests requiring SIS – 3 Long-Term Firm Transmission Service Requests Withdrawn – 1



Currently involved in scoping/feasibility study work for the following entities:◦ Western Area Power Administration - DSW



Currently no new Economic Study Requests have been received by TEP



Any Questions?



• Open Discussion– Stakeholder submittal of requests for additional ◦ transmission studies

• Requests can be made at any time to: [email protected]



mailto:Transcoord%[email protected]

Open discussion



Review of action items

Review of the action items to be addressed during 2018 4th Quarter Stakeholder Meeting



2 Quarter Stakeholder Transmission Planning Meeting June 5 ...

Documents

Transcript of 2 Quarter Stakeholder Transmission Planning Meeting June 5 ...