APS/SRP Stakeholder Meeting
For 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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
3
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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
4
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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
6
3.A. 2015 NERC Compliance Study Methodology
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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.A. NERC Compliance Studies
NERC 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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.A. NERC Compliance Studies
NERC 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
2017
Peak
X
X
2020
Peak
X
X
2021
Peak
X
X
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
Post-transient
9
3.A. NERC Compliance Results
• 2015 Results
– 2015 NERC Compliance Studies were finalized by beginning
of December of 2015
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
12
3.B. SRP Ten Year Plan 2016-2025
• Draft - Still subject to change until January 31st filing
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
13
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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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NAVAJO GS
500kV System
MOENKOPI
(APS)
NEVADA
YAVAPAI
(APS)
MARKETPLACE
DUGAS
(APS)
CHOLLA
(APS)
McCULLOUGH
ELDORADO
2016-2025
CEDAR MT
(APS)
MEAD
MORGAN
(APS)
230kV
SUGARLOAF
PERKINS
CORONADO
WESTWING
MOHAVE
PINNACLE PEAK (APS)
345kV
RUDD
PALO VERDE
HASSAYAMPA
TEP
JOJOBA
2024
SPRINGERVILLE
(TEP)
KYRENE
SILVER
KING
BROWNING
PINAL WEST
DUKE
PINAL
CENTRAL
SUNZIA (SWPG)
Central
New Mexico
2021
EXISTING 500kV SUBSTATION
EXISTING LINES
FUTURE 500kV SUBSTATION
FUTURE LINES
All Changes since January 2015 Ten Year Plan shown in red
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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TO
W.A.P.A.
PINNACLE PEAK
TO
APS
PINNACLE PEAK
230kV System
SRP
PINNACLE PEAK
W.A.P.A.
WESTWING
2016-2025
DEER
VALLEY
(APS)
W.A.P.A.
AGUA
FRIA
ALEXANDER
W.A.P.A.
PAPAGO
BRANDOW
GOLDFIELD
THUNDERSTONE
WHITE
TANKS
ROGERS
RUDD
TO APS
OCOTILLO
ORME
LIBERTY
(W.A.P.A.)
To
Silver King
Line
Reconfiguration
WARD
BROWNING
2020
CORBELL
KYRENE RS-27
ANDERSON
SANTAN
(TBD)
DOUBLE CIRCUIT, PHASE TIED LINE
BALL
TBD
KNOX
TBD
EXISTING 230kV CIRCUIT
RS-28
DINOSAUR
(2017)
2017
FUTURE 230kV CIRCUIT
EXISTING 230kV SUBSTATIONS
FUTURE 230kV SUBSTATIONS
PFISTER
TBD
2021
2021
Price Road
Corridor Project
GENERATING STATION
SCHRADER
ABEL
DESERT
BASIN
TO SANTA
ROSA
(APS)
RANDOLPH
TO CASA
GRANDE
(APS)
PINAL
CENTRAL
All Changes since January 2015 Ten Year Plan shown in red
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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MORMON
FLAT
Eastern
Mining Area
ROOSEVELT
HORSE
MESA
2016-2025
STEWART
MOUNTAIN
FRAZIER
TO
SILVER KING
500kV
SILVER
KING
230
ELLISON
PINTO
VALLEY
MIAMI
GOLDFIELD
230kV
MOONSHINE
115kV
TO
THUNDERSTONE
CARREL
SPURLOCK
CARLOTA
Reroute
2017
PINAL
SUPERIOR
TRASK
OAK
FLAT
KNOLL
RAY
MORRIS
FUTURE SUBSTATION
KEARNY
EXISTING SUBSTATION
HAYDEN
BONNEYBROOK
(APS)
GENERATING STATION
ASARCO
FUTURE LINE
EXISTING LINE
COOLIDGE
(W.A.P.A.)
TO APACHE
(AEPCO)
TRANSFORMER
All Changes since January 2015 Ten Year Plan shown in red
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.C. – 3.E. Transmission Planning Study Process
SRP evaluates plan submittals or alternatives according to the following flowchart.
Exhibit 1 – SRP Attachment K
Transmission
Planning Process
Economic
Regional
Reliability
Local2
Transmission
Provider
Evaluation
High
priority
Not high
priority
Transmission
Provider Economic
Study
Study results documented
in a report and reviewed
by Customer and
Transmission Provider
Does Transmission
Provider’s system
meet
NERC/WECC
criteria?
No
Transmission Provider
determines facilities
needed with
Stakeholder input
Yes
Customer Choice
of Study at
Customer’s
expense
TEPPC
evaluates with
Stakeholder
input
What Type of
Study?1
Does Transmission
Provider’s system meet
local reliability criteria?
No
Transmission Provider
determines facilities
needed with
Stakeholder input
Yes
TEPPC
determines high
priority, performs
study
TEPPC
determines not
high priority
Transmission Provider
coordinates with SubRegional Planning
Group
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.
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.C.-E. SRP Planning - Study Requests
• Generation Interconnection Requests
• Transmission Interconnection Requests
• Transmission Service Requests
• Economic Study Requests
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.C. SRP Planning –Interconnection Requests
(Transmission)
• Currently there are no Transmission Interconnection
Requests under study
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.C. Interconnection Requests (Generation)
A. EAST VALLEY
2- Solar Projects 98MW
B. EMA 115kV AREA
2- Solar Projects 60MW
A
B
Generation Interconnection Requests
listed on this slide are for SRP solely
owned transmission
23
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
3.D.-E. SRP - Transmission Service and
Economic Study Requests
• SRP received two Transmission Service Requests
• There are no Economic Study Requests
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.F. Submittal of Additional Study Plan
Proposals
• If you have study ideas for SRP to consider, please send a
detailed message to: SRP.TransmissionPlanning@srpnet.com
• 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?
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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3.G. SRP Planning – Comments & Questions
• Stakeholder comments/questions on 2015 Study Results
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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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
4.A. 2015 NERC Compliance Study
Methodology
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
Year
1
(2016)
2
(2017)
Long-Term
3
4
5
(2020)
Peak Load (Summer)
X
X
Peak load sensitivity
X
X
Off-Peak (Spring)
X
Off-Peak sensitivity
X
Peak Load (Summer)
X
Peak load sensitivity
X
Off-Peak (Spring)
X
Off-Peak sensitivity
X
6
7
8
9
(2024)
X
Steady State
Stability
32
10
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
Note: AZ coordinated cases also included IID
33
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
Planning Calendar for Ten-Year Planning Cycle
Jan.
APS Transmission
Planning – 10 Yr Plan
Stakeholder Input
10yr Plan – Filed with ACC by Jan. 31
10yr. Plans filed by others
Feb.
Mar.
Arizona Utilities coordinated seed case
development
Develop 10yr base cases from AZ
seed cases
Jun.
Jul.
·
APS/SRP Coordination Meeting
·
APS/WAPA Coordination
Meeting
·
WestConnect Meetings
·
SWAT Meetings
o AZTS
o New Mexico
o Eldorado Valley
o Transmission Corridor
o Short-circuit
APS Corporate Load Forecast
Apr.
May
Other Coordination
Activities Throughout
the Year
2nd Quarter Stakeholder Meeting –
Stakeholder input on studies, request study
alternatives, updates on current projects
10yr Plan study effort – Determination
of projects, timings, and scope
Aug.
Sep.
APS Corporate Load Forecast – Post
Summer
Oct.
Nov.
Dec.
10yr Plan – New load forecast
sensitivity
Sep. 1st – Network Transmission
Customers and all other Transmission
Customers Load & Resource Forecast
Oct. 31st – Deadline to submit Economic
Study Requests for 4th Quarter Meeting
review
4th Quarter Stakeholder Meeting – Review
draft of current 10yr plan, discuss
Economic Study requests, receive
stakeholder input
36
4.B. APS Ten-Year Plan Projects 20152024
Transmission Plan
Filed 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 Relocation
2016:
 Delaney-Palo Verde 500kV Line
 Delaney-Sun Valley 500kV Line
2017:
 Mazatzal 345/69kV Substation
2018:
 Morgan-Sun Valley 500kV Line
2019:
 Ocotillo Modernization Project
39
In-service:
 Palm Valley-Trilby
Wash 230kV Line
2016:
 Sun Valley-Trilby Wash
230kV Line
2019:
 Ocotillo Modernization
Project
2026:
 Morgan-Sun Valley
230kV Line
40
In-service:
 Hassayampa-North Gila
500kV #2 Line
2018:
 North Gila-Orchard
230kV Line
41
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
A - HAA-NG 500kV line


2 projects
700 MW
B - Gila Bend/Buckeye


2 projects
654 MW
C – Metro Phx


2 projects
669 MW
D - Saguaro


1 projects
50 MW
E - Douglas


1 projects
17.5 MW
F - Moenkopi


C
1 projects
161 MW
G - Cholla


1 projects
200 MW
Note 1: Generator Queue
information as of 10/16/15
Note 2: Figures displayed may
not represent complete queue
D
45
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:
apstransmission@aps.com
• 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
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
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
48
6. Action Items
• Review any action items, assignments, and due
dates
12/15/2015 APS/SRP Stakeholder Meeting for Transmission Planning
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