aps/srp stakeholder meeting for transmission planning ferc order 890 srp attachment k aps attachment...

APS/SRP Stakeholder MeetingFor Transmission Planning

FERC Order 890 SRP Attachment K APS Attachment E

SRP Facility – Scottsdale, AZ December 15th, 2015

9:00 – 11:00 A.M.

12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning 1

Agenda

1. Welcome, Introductions, and Stakeholder Meeting Overview

2. Status of Action Items – June 18, 2015 Joint APS/SRP 2nd Quarter

Public Planning Meeting

3. Purpose of Today’s Meeting – SRP Planning

4. Purpose of Today’s Meeting – APS Planning

5. Stakeholder Questions/Comments

6. Action Items Review

212/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning

2. Status of Action Items

• There were no Action Items from the Joint APS/SRP 2nd

Quarter Public Planning Meeting held on 6/18/2015


3. Purpose of Today’s Meeting

• Per SRP’s OATT, SRP conducts the 4th quarter public planning meeting to:

– Review its current transmission study plan– Present a draft of its Ten Year Transmission Plan for the

following calendar year for stakeholder review and comments

– Review economic planning study request submitted by October 31


3.A. – SRP’s Study Plan

• SRP has two distinct, but related, transmission study plans– NERC Compliance– SRP’s budgetary planning

• The difference between the two plans:– NERC Compliance studies based on old TPL-001 – TPL-004 Standards: 3

seasons/scenarios, 2 discrete years (near and long term)– NERC Compliance studies based on new TPL-001-4 Standard: 2

seasons/scenarios, 3 discrete years (near and long term)– SRP’s annual planning: 1 season, 10 consecutive years (first 6 years are for

budget, remaining 4 for compliance purposes)

• The similarities between the two plans:– Similar load forecasts, demand response– They are reliability studies


3.A. 2015 NERC Compliance Study Methodology

• Coordinated Base Cases (Seed Cases)• 2016 – AZ coordinated case used to build 2016-2019• 2020 – AZ coordinated case used to build 2020-2023• 2024 – AZ coordinated case used to build 2024-2025• The intermediate cases are APS/SRP coordinated

– SRP NERC Compliance cases• 2017 and 2021

• 69kV transmission models incorporated• Most up-to-date forecasts for peak summer loads



NERC Compliance Studies Cases• 2017 & 2021 Summer Peak & Off-peak Cases and 2020

Summer Peak Case• 2017 & 2021 Off-peak Cases are Low Load (winter conditions)

and High Import (shoulder cases with low generation in the Phoenix Metro Area)

• Following analyses are conducted:– Thermal analysis– Post-Transient– Transient Stability– Short Circuit


3.A. NERC Compliance StudiesNERC STANDARD Type of Studies Completed

TPL-001 (N-0) and TPL-001-4 P0 Thermal Transient Stability Post-transient Short Circuit

2017 Peak , Low Load and High Import X X

2020 Peak X X

2021 Peak , Low Load and High Import X X

TPL-002 (N-1) and TPL-001-4 P1, P2 Thermal Transient Stability Post-transient Short Circuit

2017 Peak , Low Load and High Import X X X X

2020 Peak X X X X

2021 Peak , Low Load and High Import X X X X


3.A. NERC Compliance StudiesNERC STANDARD Type of Studies Completed

TPL-003 (N-2) and TPL-001-4 P3-P7 Thermal Transient Stability Post-transient

2017 Peak , Low Load and High Import X X X

2020 Peak X X X

2021 Peak , Low Load and High Import X X X

TPL-004 (N-X) and TPL-001-4 Extreme Events Thermal Transient Stability Post-transient

2017 Peak X X

2020 Peak X X

2021 Peak X X


3.A. NERC Compliance Results

• 2015 Results– 2015 NERC Compliance Studies were finalized by beginning

of December of 2015


3.A. – Customer Load/Resource Updates

• No customers provided load/resource data in September 2015

• SRP received no stakeholder proposals in 2015 or prior to this meeting.

• If you like to provide information for the future SRP planning cycles, please see critical dates on the next slide


3.B. SRP Ten Year Plan 2016-2025

• Draft - Still subject to change until January 31st filing


3.B. 2016-2025 Ten Year Plan Methodology

• Coordinated Base Cases

– See NERC Compliance Methodology slide #6

• 69kV transmission models incorporated

• Most up-to-date forecasts for peak summer loads

• TPL-001 & TPL-002 Studies Conducted for all ten years


EXISTING LINES

FUTURE LINESFUTURE 500kV SUBSTATION

EXISTING 500kV SUBSTATION

NEVADA

WESTWING

KYRENE

SILVERKING

CORONADO

CHOLLA(APS)

MEADMcCULLOUGH

MARKETPLACE

BROWNING

HASSAYAMPA

RUDDPALO VERDE

PINAL WEST

JOJOBA

DUKE

NAVAJO GS

SUGARLOAF

MOENKOPI(APS)

YAVAPAI(APS)

PINNACLE PEAK (APS)

PINALCENTRAL

SUNZIA (SWPG)

2021

CentralNew Mexico

SPRINGERVILLE(TEP)

DUGAS(APS)

500kV System

345kV

MORGAN(APS)

2016-2025

CEDAR MT(APS)

TEP

ELDORADO

MOHAVE

230kV

PERKINS

All Changes since January 2015 Ten Year Plan shown in red

2024


Price Road Corridor Project

BRANDOW

WARD

CORBELL

ALEXANDER

WESTWING

KYRENEANDERSON

WHITETANKS

ORME

SRPPINNACLE PEAK

PAPAGO

LIBERTY(W.A.P.A.)

AGUAFRIA

DEERVALLEY

(APS)

ROGERS

TO APSOCOTILLO

TOAPS

PINNACLE PEAK

TOW.A.P.A.

PINNACLE PEAK

W.A.P.A.

W.A.P.A.

W.A.P.A.

KNOX

SCHRADER

RUDD

2020

230kV System

SANTAN

THUNDERSTONE

BROWNING

EXISTING 230kV SUBSTATIONS

FUTURE 230kV CIRCUIT

EXISTING 230kV CIRCUIT

FUTURE 230kV SUBSTATIONS

GENERATING STATION

DOUBLE CIRCUIT, PHASE TIED LINE

GOLDFIELD

ABEL

DINOSAUR

2021

DESERTBASIN

PINALCENTRAL

RANDOLPH

2021PFISTER

TBD

2016-2025

ToSilver King

RS-28(2017)

2017

TBD

RS-27(TBD)

TO SANTAROSA(APS)

TO CASAGRANDE

(APS)

All Changes since January 2015 Ten Year Plan shown in red 1612/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning

Line Reconfiguration

BALLTBD

115kV

MIAMI

PINAL

SUPERIOR

SPURLOCK

MOONSHINE

ELLISON

FRAZIER

RAYMORRIS

KEARNY

HAYDEN

STEWARTMOUNTAIN

MORMONFLAT

HORSEMESA

GOLDFIELD230kV

OAKFLAT

PINTOVALLEY

KNOLL

TO APACHE(AEPCO)

TOTHUNDERSTONE

COOLIDGE(W.A.P.A.)

TOSILVER KING

500kV

SILVERKING230

ASARCO

GENERATING STATION

EXISTING LINE

FUTURE LINE

EXISTING SUBSTATION

FUTURE SUBSTATION

EasternMining Area

CARREL

BONNEYBROOK(APS)

TRASK

CARLOTA

ROOSEVELT

2016-2025

TRANSFORMER

All Changes since January 2015 Ten Year Plan shown in red 1712/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning

Reroute2017

3.B. SRP changes since 2015 Plan

• Completed Projects– Browning - Rogers 230kV line

• New Projects– None

• Removed Projects– Hassayampa – Pinal West 500kV Jojoba Loop-in

• Removed from SRP’s plan since TEP is the driver of this project


3.B. SRP changes since 2015 Plan

• Delayed Projects– Eastern Mining Expansion was 2019, now TBD– Sun Zia was 2018, now 2021– Silver King-RS29 230kV was 2019, now TBD– RS29 230kV substation was 2019, now TBD– RS29-RS30 115kV was 2019, now TBD– RS30 115kV substation was 2019, now TBD


3.C. – 3.E. Transmission Planning Study Process SRP evaluates plan submittals or alternatives according to the following flowchart.

What Type of Study?1

Does Transmission Provider’s system

meetNERC/WECC

criteria?

No

Does Transmission Provider’s system meet local reliability criteria?

Yes

Transmission Provider determines facilities

needed with Stakeholder input

No

Transmission Provider coordinates with Sub-

Regional Planning Group

Yes

Economic Reliability

Transmission Provider

Evaluation

Regional

TEPPC evaluates with Stakeholder

input

Transmission Provider Economic

Study

Customer Choice of Study at Customer’s

expense

Local2

TEPPC determines high priority, performs

study

High priority

Not high priority

TEPPC determines not

high priority

Study results documented in a report and reviewed

by Customer and Transmission Provider

Transmission Provider determines facilities

needed with Stakeholder input

1. Generator Interconnection Request studies are performed pursuant to the Large Generator Interconnection Procedure contained in the Transmission Provider’s Open Access Transmission Tariff (OATT). Transmission Service Requests are also performed pursuant to OATT procedures.

2. All requests for economic planning studies received by the Transmission Provider are forwarded to TEPPC for inclusion in the TEPPC Master List. TEPPC will evaluate only those requests that have regional impacts.

Transmission Planning Process

Exhibit 1 – SRP Attachment K


3.C.-E. SRP Planning - Study Requests

• Generation Interconnection Requests

• Transmission Interconnection Requests

• Transmission Service Requests

• Economic Study Requests


3.C. SRP Planning –Interconnection Requests (Transmission)

• Currently there are no Transmission Interconnection Requests under study


3.C. Interconnection Requests (Generation)

A. EAST VALLEY2- Solar Projects 98MW

B. EMA 115kV AREA2- Solar Projects 60MW

Generation Interconnection Requests listed on this slide are for SRP solely owned transmission


BA

3.D.-E. SRP - Transmission Service and Economic Study Requests

• SRP received two Transmission Service Requests• There are no Economic Study Requests


3.F. Submittal of Additional Study Plan Proposals

• If you have study ideas for SRP to consider, please send a detailed message to: [email protected]

• Please include (at a minimum):– Your Name/Company/contact info (e-mail/phone #)– What the purpose of the study request is? And how will the

results be used?– What year(s) and season(s) is of interest?– What type of study – reliability (power flow only?),

economic?


mailto:[email protected]

3.G. SRP Planning – Comments & Questions

• Stakeholder comments/questions on 2015 Study Results


APS 4th Quarter Stakeholder

FERC Order 890 APS Attachment E

4.A. APS’s Study Plan

• APS has two distinct, but related, transmission study processes– NERC Compliance– APS’s Annual Planning

• The difference between the two plans:– NERC Compliance:

• Minimum 2 seasons, 2 discrete years (near and long term); all cases examine P0-P7 (formerly Category A – D)

– APS’s annual planning: 1 season, 10 consecutive years; N-0 and N-1– NERC Compliance is now starting point for annual plan

• Working on combining TPL assessment and Annual Planning for future years– TPL assessment results utilized for 10yr plan– 10Yr plan fills in the gap years

28

4.A. NERC Compliance Results?

• 2014 Results?– APS is fully compliant with NERC Transmission

Planning Standards

• 2015 Progress?– Case building complete– DYD files complete– Study work being finalized– Report writing started

29


NERC Compliance Studies Cases• 2016, 2020 & 2024 Summer Peak Cases

– Sensitivity case has higher import, and lower metro internal generation

• Off-peak Case is Low Load and High Import (shoulder case with low generation in the Phoenix Metro Area)

– 2017 Light Spring case; one case in the near-term– High ratio of renewable generation to overall generation on-line– Sensitivity case is higher export, more internal metro generation on-line

• Following analyses are conducted:– Thermal and voltage– Short-Circuit– Transient Stability

30

4.A. 2015 NERC Compliance Studies

• TPL-001-4 combined previous TPL-001 through TPL-004– No longer Category A, B, C, & D– Now P0 through P7

• Covers all scenarios from N-0 to N-1-1• Also includes Multiple Contingencies due to relay or

breaker failures

– Requires more cases/scenarios– Includes short-circuit analysis (2024)

31

4.A. APS TPL Plan for 2015 Study

Near-Term Long-TermYear 1

(2016)2

(2017)3 4 5

(2020)6 7 8 9

(2024)10

Steady State

Peak Load (Summer) X X X

Peak load sensitivity X X

Off-Peak (Spring) X

Off-Peak sensitivity X

Stability

Peak Load (Summer) X

Peak load sensitivity X

Off-Peak (Spring) X

Off-Peak sensitivity X

32

4.A. 2016-2025 Ten-Year Plan Methodology

• Coordinated Base Cases– 2015HS – SASG/AZ coordinated case used to build heavy

summer 2016-2019– 2020HS – AZ coordinated case used to build heavy summer

2021-2023– 2024HS – SWAT/AZ coordinated case used to build heavy

summer 2025 (same SWAT updated case submitted to WestConnect)

– The intermediate cases are APS/SRP coordinated

• 69kV transmission models incorporated• Most up-to-date forecasts for peak summer loads• N-0 and N-1 analysis conducted for all ten years

33

Note: AZ coordinated cases also included IID

4.A. 2016-2025 Ten-Year Plan Status

• AZ Seed cases are complete (2016HS, 2020HS, 2024HS)

• Intermediate cases are complete• Ten-Year plan studies are being finalized• Ten-Year Plan filed by the end of January• BTA Studies will also be completed and

filed– 10th Year Snapshot & Extreme Contingency– RMR study – no triggers were identified for

PHX/Yuma

34

4.A. Customer Load/Resource Updates

• APS has all load/resource data from Network Customers and has incorporated them into the base cases

• APS received no stakeholder proposals in 2015 or prior to this meeting

• Should you like to provide information for the future APS planning cycles, please see critical dates on the next slide

35

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

10yr Plan – Filed with ACC by Jan. 31 10yr. Plans filed by others

APS Corporate Load Forecast

Stakeholder Input

APS Corporate Load Forecast – Post Summer

Sep. 1st – Network Transmission Customers and all other Transmission Customers Load & Resource Forecast

10yr Plan – New load forecast sensitivity

Develop 10yr base cases from AZ seed cases

10yr Plan study effort – Determination of projects, timings, and scope

4th Quarter Stakeholder Meeting – Review draft of current 10yr plan, discuss Economic Study requests, receive

stakeholder input

Planning Calendar for Ten-Year Planning CycleAPS Transmission

Planning – 10 Yr Plan

Arizona Utilities coordinated seed case development

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

alternatives, updates on current projects

Other Coordination Activities Throughout

the Year

· APS/SRP Coordination Meeting

· APS/WAPA Coordination Meeting

· WestConnect Meetings

· SWAT Meetingso AZTSo New Mexicoo Eldorado Valleyo Transmission Corridoro Short-circuit

Oct. 31st – Deadline to submit Economic Study Requests for 4th Quarter Meeting

review

36

4.B. APS Ten-Year Plan Projects 2015-2024

Transmission PlanFiled on Jan. 30, 2015(updated with 2015

activities)

37

4.B. Changes since 2015 Plan was filed

• Three projects completed– Bagdad 115kV Relocation– Hassayampa-North Gila #2 500kV line

• Energized May, 2015• New Path 49 (EOR) rating of 10,100 MW

– Palm Valley-Trilby Wash 230kV line• Energized April, 2015• Trilby Wash now providing new source for northwestern part of valley

• Actively under construction– Palo Verde-Delaney-Sun Valley 500kV– Sun Valley-Trilby Wash 230kV– Mazatzal 345/69kV substation

• In-service date change– Ocotillo Modernization Project in-service pushed back to 2019

38

In-Service: Hassayampa-North Gila 500kV #2

Line Bagdad 115kV Line Relocation2016: Delaney-Palo Verde 500kV Line Delaney-Sun Valley 500kV Line2017: Mazatzal 345/69kV Substation2018: Morgan-Sun Valley 500kV Line2019: Ocotillo Modernization Project

39

40

In-service: Palm Valley-Trilby

Wash 230kV Line2016: Sun Valley-Trilby Wash

230kV Line2019: Ocotillo Modernization

Project2026: Morgan-Sun Valley

230kV Line

41

In-service: Hassayampa-North Gila

500kV #2 Line2018: North Gila-Orchard

230kV Line

Bulk Transformer Additions/Replacements

Description Year

Two 100MVAR Reactors at Four Corners 230kV (in-service) 2015

Trilby Wash 230/69kV Transformer (in-service) 2015

Sun Valley 500/230kV Transformer 2016

Delaney 500/69kV Transformer 2016

Mazatzal 345/69kV Transformer 2017

North Gila 500/230kV Transformer 2018

Orchard 230/69kV Transformer 2018

Orchard 230/69kV Transformer #2 2018

Saguaro 230/69kV Transformer 2021

Prescott 230/115kV Transformer #3 TBD

42

4.C-E. APS Planning - Study Requests

• Interconnection Requests– Transmission Interconnection Requests– Generation Interconnection Requests

• Transmission Service Requests• Economic Study Requests

43

4.C. Interconnection Requests

• 2 Active Wires-to-Wires Interconnection requests

• Active Generation Interconnection requests– APS OASIS contains Generation Interconnection

Queue• http://www.oatioasis.com/azps/index.html• 5 Solar projects – 787.5 MW• 1 Wind projects - 200 MW• 1 Wind/Solar project – 101 MW wind/60 MW solar• 2 Natural Gas projects – 919 MW• 1 Battery Storage – 74 MW

Note: Generator Queue information as of 10/16/15

44

http://www.oatioasis.com/azps/index.html

A - HAA-NG 500kV line 2 projects 700 MWB - Gila Bend/Buckeye 2 projects 654 MWC – Metro Phx 2 projects 669 MWD - Saguaro 1 projects 50 MWE - Douglas 1 projects 17.5 MWF - Moenkopi 1 projects 161 MWG - Cholla 1 projects 200 MW Note 1: Generator Queue

information as of 10/16/15Note 2: Figures displayed may not represent complete queue

AB

C

F

D

45

E

G

4.D-E Transmission Service Requests and Economic Study Requests

• 42 Transmission Service Requests that may require a SIS

• Currently no Economic Study Requests

46

4.F. Submittal of additional study plan proposals

• If you have study ideas for APS to consider, please send a detailed message to: [email protected]

• Please include (at a minimum)– Your Name/Company/contact info (e-mail/phone #)– What the purpose of the study request is? And how

will the results be used?– What year(s) and season(s) is of interest?– What type of study – reliability (power flow only?)

economic?

47

mailto:[email protected]

5. Stakeholder Questions & Comments

• Open discussion• Reference Material• WestConnect –

– http://www.westconnect.com/documents.php

• APS OASIS –– http://www.oatioasis.com/azps/index.html

• SRP OASIS –– http://www.oatioasis.com/srp/index.html


http://www.westconnect.com/documents.php

http://www.oatioasis.com/azps/index.html

http://www.oatioasis.com/srp/index.html

6. Action Items

• Review any action items, assignments, and due dates


aps/srp stakeholder meeting for transmission planning ferc order 890 srp attachment k aps attachment...

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