bob easton wapa-rmr planning manager september 1, 2010
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Bob Easton WAPA-RMR Planning Manager
September 1, 2010
• Transmission in West• Line Separation• TOT3 Example• Control Areas• Congestion/Expansion• Questions
AGENDASeptember 1, 2010
Subregional Planning Group Footprints
(2015)
(2015)
(2015)
(2018)
(2013)
(2010-2017)
(In-service dates)
Review of Transmission Development in
Wyoming
Routes shown are for illustrative purposes only & will befinalized following the permitting and siting process
5
Wyoming Collector System Report February 2, 2010
Available on the WIA’s site at: www.wyia.org
Task Force Members
6
Background: Qualified Resource Areas (QRAs)
Source: WREZ Phase 1 Report 2009
Wind Resource Development Scenario #1
Wind Resource Development Scenario #2
10
Collector System Example
Feeder
11
Laramie River Station
Existing sub-station
New sub-station
Generation Feeder Line
Integrated Network Line
Transmission Export Line
Conceptual example of a compact Collector System design
Wind Generation
New sub-station
Natural Gas GenerationAdvanced Coal Technology Generation
Existing Wyoming Transmission System and Export Projects
Preliminary Cost Estimates
Wind HubSubstation
Wind Farm 2300–400 MW
Wind Farm 3300–400 MW
Wind Farm 4300–400 MW
WH – TEH line
Wind Collector System
500 kV at $2 million/mile
500 kV Substationat $75 million
High CapacityExport Line
500/34.5 kV Transformer
500/230 kV Transformer
500/230 kV transformerat $15 million
40 miles of 230 kVat $1 million/mile
WF1 – WH 230 kV line
WF2 – WH 230 kV line
WF3 – WH 230 kV line
WF4 – WH 230 kV line
34.5 kV WF1POI Bus
34.5 kV WF2POI Bus
34.5 kV WF3POI Bus
34.5 kV WF4POI Bus
Wind Farm 1300–400 MW
230/34.5 kV Transformer
230/34.5 kV Transformer
230/34.5 kV Transformer
230/34.5 kV Transformer
TEH Substation
Wind FarmSubstation
Wind HubSubstation
Wind Farm 2300–400 MW
Wind Farm 3300–400 MW
Wind Farm 4300–400 MW
WH – TEH line
Wind Collector System
500 kV at $2 million/mile
500 kV Substationat $75 million
High CapacityExport Line
500/34.5 kV Transformer
500/230 kV Transformer
500/230 kV transformerat $15 million
40 miles of 230 kVat $1 million/mile
WF1 – WH 230 kV line
WF2 – WH 230 kV line
WF3 – WH 230 kV line
WF4 – WH 230 kV line
34.5 kV WF1POI Bus
34.5 kV WF2POI Bus
34.5 kV WF3POI Bus
34.5 kV WF4POI Bus
Wind Farm 1300–400 MW
230/34.5 kV Transformer
230/34.5 kV Transformer
230/34.5 kV Transformer
230/34.5 kV Transformer
TEH Substation
Wind FarmSubstation
Notes:1. Costs are preliminary estimates of material and labor; costs do not include financing, right-of-way acquisition, or permitting.2. Costs could vary widely based on refinement of collector system designs, additional studies, and (or) level of wind generation
curtailment deemed acceptable.
Comparing Collector System Configuration Alternatives
Cost Estimates (nominal $ Billions)
Approximate Total Line Miles Collector
System Configuration
Design Type Resource
Scenario #1 Resource
Scenario #2 Resource
Scenario #1 Resource
Scenario #2
Single Circuit $2.48 $2.84 1,460 1,709 Radial
Double Circuit $3.34 $3.90 1,840 2,178
Networked WHs Minimal Double Circuit $2.93 $3.39 1,683 1,914
Networked WHs & TEHs
Minimal Double Circuit – Version 1 $3.07 $3.55 1,721 2,039
1
• Collector system design candidates for collecting up to 12 GW of wind based on reliability characteristics and preliminary costs.
• Line Separation
Typical 500-kV Transmission Structure
“Minimalist” Separation Distance
“Span-Length” Separation
No “One-Size Fits All”
• Reliability Perspective – Further Apart to Minimize Possible Simultaneous Outages
• Further Apart – Land Use/Environmental
• Public/Stakeholder Input
• State/Regional/National Interests
No “One-Size Fits All”
• Redundancy Leads to more Stable Network
• One-Span Length Cuts down the Probability of a Wire being Swung from One Circuit to the Other
• Terrain – Mountainous vs. Farmland
• TOT3 Example
WECC Constrained Paths
BUCKLEY
SUNDANCE
FT. PECK
PEACE CANYON
MICA
VANCOUVER
SEATTLE
PRINCE RUPERT
AREA
AREA
COLSTRIP
BOISE
PORTLANDAREA
MALIN
TABLE MTN
ROUND MTN
SALT LAKECITY AREA
MEXICO
EL PASOAREA
DEVERSLUGO
SAN FRANCISCO
MIDPOINT
AREA
LOS ANGELESAREA
ALBUQUERQUEAREA
NAVAJO
DENVERAREA
MOJAVE
HOOVERPHOENIX
AREA
LANGDON
HOT SPRINGS
HELLSCANYON
CHIEF JOSEPH
BURNS
PINTOFOURCORNERS
SHASTA
LANGDON
CANADA
UNITED STATES
6665
14
8
30
49
31
19
22
34
47
3
35
18
1720
23
36
45
46
5051 4
8
48
Transmission Paths
TOT-3 TTC/ATC Calculations
TOT3 Ownership CapacityMBPP – 70.5% 1132Western – 24.93% 475T. State – 0.83% 13PSCo – 3.74% 60
1680
COLORADO
NEBRASKAWYOMING
LRSG
ARCHER
AULT
STEGALL
SIDNEY
N.YUMASTORY
GPAWNEE
345KV230KV115KV
TOT3 MAJOR LINES
TOT3
400 MW
700 MW
COLORADO
NEBRASKAWYOMING
LRSG
ARCHER
AULT
STEGALL
SIDNEY
N.YUMASTORY
GPAWNEE
345KV230KV115KV
TOT3 MAJOR LINES
OUTAGE!LOADs to 100%
LOW VOLTAGE
TOT3
0 MW
1000 MW
COLORADO
NEBRASKAWYOMING
LRSG
ARCHER
AULT
STEGALL
SIDNEY
N.YUMASTORY
GPAWNEE
345KV230KV115KV
TOT3 MAJOR LINESOVERLOAD
TOT3
450 MW
850 MW
200 MW injection W
COLORADO
NEBRASKAWYOMING
LRSG
ARCHER
AULT
STEGALL
SIDNEY
N.YUMASTORY
GPAWNEE
345KV230KV115KV
TOT3 MAJOR LINES
OUTAGE!OVERLOAD/INSTABILITY
LOW VOLTAGE
TOT3
0 MW
1200 MW
August 14, 2003
• Control Areas
RMR Dispatch Floor
Not to Scale
PRESCHEDULING
TSS
AGCSWITCHING
Role of Balancing Authorities
• Monitor Boundaries• Controlled,
Scheduled Interchange
• Balance Generation and Load
• Support Interconnection Frequency
6059 61
LOAD GEN
Transmission Switching Desk
Outage Coordinator – Aligns Maintenance, WECC, and other utilities
Clearances, Hot line Orders, Voltage Control Substations, Snowcat, and Helicopter
monitoring Outages, Callouts, and Emergency Response
AGC and Reliability Desk
Balance WACM generation and load (AGC) Maintain scheduled system frequency Monitor and verify Interties Maintain and activate system reserves Operate the DC ties
Transmission Scheduling and Security Desk
Real-time power scheduling via E-tag systems Operate Constrained Paths Next hour’s Interchange Target Direct unscheduled flow procedures Operate Phase Shifting transformers
Transmission Scheduling & Security
• Prescheduling– Work 1 to 4 days ahead of Real-Time– Work with other Preschedulers & Power Marketers– Process E-Tags
• Review & Approve (or Deny) Tags created by marketing customers (Purchasing/Selling Entities)
• Primarily checking for Transmission Rights (proper OASIS reservations), Losses, properly formatted E-Tags
• Check-out daily totals with Internal & External customers (within WACM and next-door BA’s)
• Congestion/Expansion Planning
January 2008 Monthly Average
LMP $4 Gas
NELWAY
BRIDGER
COLS TRIP
G OSHEN
BORAH
KINPORT
M IDPOINT
SUM MERLAKE
MALIN
CAPTJACK
M ERIDIAN
ALV EY
ALLSTON
KEE LER
PEARL
RO UNDM T
O LINDA
JOHN DAY
MARION
LANE
G RIZ ZLY
BUCKLEY
THEDALLES
OSTRANDER SL ATT
M cNARY(11 69 M W)
BOARDM AN
PAUL /CENTRALIA
RAVER
MONROE
CUSTER
ECHOLAKE
CHIEFJO E GRAND COULEE
SC HULT Z
HANF ORD
ASHE
VANTAG E
LOWMON
L ITGO OSE
LOWGRANITE
TAFT
G ARRISON
DWO RSHAK
TOWNSENDBROADVIEW
BELL
DIXO NVILLE
BENL OM OND
NAUGHTON
ANACO NDA
AT LANTICCIT Y
ROCKSPRINGS
M ONUM ENT
MUST ANG
SPENCE
BILL INGS
YELL OWTAIL
CUSTER
G REATFALLS
OVANDO
HOTSPRINGS
CABG ORGE
NOXON
LOLO
HELLSCANYON
RO UNDUP
O XBOW
BR OWNLE E
BO ISE
ENTERPRISE
WALLAWALLA
LAG RANDE
HATW AI
M OS COW
BENEWAH
RIVERTON
BUFFALO
OREG ONBASIN
THE RM OPOLIS
WYODAK
CASPER
SHERIDAN
PLAT TE
DAVE J OHNSTON
M ILES CITYDC TIE
GRANTSPASS
COPCO
LONEPINE
RO SS
ONTARIO
CALDWELLBURNS
WANETA
BOUNDARY
VACA-DIXO N
TRACY
TESLA
TABLEMT
LOSBANOS
MOSSLANDING
TERM INAL
MONA
FOUR CO RNERS
90SOUTH
CAMPWIL LIAM S
BONANZA
HUNT INGTO N
SIGUR D
IPP
GO NDER
HARRYALLEN
MACHACEKFTCHURCHILL
AUS TIN
PAV ANT
HUNT ER
SYLM AR
ADE LANTO
GLENCANYON
VALM Y(562 M W)
HUM BOLDT
TR ACY
VALLEYROAD
CROSS -OVER
AMPS
JEFFERSON
DILLONPETERSONFLATS
DR UM
WEEDJC T
CASCADE
RESTON
O LYMPIA
INGLEDOW
ROCKYREACH
M IDWAY
LIBBY
HUNGRY HORSE
CRAIG
SAN JUAN
HAYDEN
LARAM IERIVER
ARCHER
AULT
RIFLE
M ONTROSE
PINTO
CURECANTI PONCHA
SIDNEY
STORY
L E G E N D :
500K V
+-500KVD C
345K V230K V115-161KV
LANGE
WE STHILL
ST EGAL
COMA NCHEMID WAY
DANIE LS PARKMALTA
SM OKY HILL
PAWNEE(53 0 MW)
VALM ONT
DILL ON
BEAVER
WARNERHILL TOP
BORDERT OWN
REDBUTT E
FLAM INGGO RG E
TREASURETON
K-FALLSCO G EN
BO YLE
NLEW IS TON
DIABLO
G ATES
M IDWAY
RINAL DI
VINCENT
VICT ORVIL LE
LUGO
M IRALOM ASERRANO
VALLEY
DEVERS
MIG UEL IM PERIALVALLEY
M OJAV E
EL DORAD O
M CCULLOUGH
MEAD
M ARKETPLAC E
NAVAJ O
MO ENKO PI
YAVAPAI
TABLE M ESA
PALO VERDE
WE STWING
FLAG STAFF
PINNACLE PEAK
CHOLLA
NORTH G ILA LIBERTY
KYRENE SILVERKING
CORONADO
SO UTH
BICKNELL VAIL
G REENLEE
SPRINGERVILL E
SAG UARO
TORTOLIT A
PARKER
PRESCOTT
ROUNDVALLEY
SELIG M ANDAVIS
CAMINO
EAG LEM T.
BLYT HE
KNOB
G ILATIJ UANA
M ETROPOL IJUAREZ
LOM AS
CIPRE S
LAROSIT A
SAN LUIS
M EXIC ALI
INT ERGENSEM PRA
M ERIDIAN
CHEEK YE
MALASPINA
DUNSM UIR
SAHT LAM
GOLD R IVER
ARNOT T
CLAYBURN
RO SEDALE
WHALEACH
BRIDG ERIVER
NICOLA
KELLYLAKE
100 M ILEHOUSE
SO DACREEK
BARLOW
WILLIST ON
GLENANNAN
T ELKW A
SKE ENA
PRINCE RUPERT
KITM AT
KEM ANO
SAVONA
MICA
REVELS TOKE
ASHTONCREE K
SELKIRK CRANBRO OK
INVERM ERE
NAT AL
PEIGAN N. L ETHBR IDGE
LANGDON
JANETSARC EE
REDDEER
BENALT O
BRAZEAU
BICKERDIKE KEEPHILLSELLERSLI E
W. BROOKS
WAREJTN. JENNER
EM PRESS
SHEERNESS
EAST EDM ONTO NCLO VERBAR
LAMO UREUX
DEERLAND
WHITEFISHLAKE
M ARG UERITELAKE
RUTH LAKE
MITSUE
N. CALDER
N. BARRHEAD
LITT LESM OKY
LOUISECRE EK
SAGITAWAH
WABAM UNSUNDANCE
MCKINLEY
P.E.G .S.
AMBROS IA WESTMESA
B-A
NORTON
OJ O
TAO S
BLACKWATER
ARTESI AAMR AD
CALIENTENEWM AN
ARRO YO
DIABLO
LUNA
HIDAL GO
LE UPP
EL CENTRO
KENNEDY
PEAC E CANY ON
PEACE R IVER
BATTL E RIVER
M ETISKO W
LEUPP
ELCENTRO
KDY 5CX3
PCN500
GMS500
BAT RV79
METI S644
LEUPP
ELCENTRO
KDY 5CX3
PCN500
GMS500
BAT RV79
METI S644
No congested
paths!
June 2008 Monthly Average LMP$4 Gas
NELWAY
BRIDGER
COLSTRIP
GOSHE N
BORAH
KINPORT
M IDPOINT
SUM MERLAKE
M ALIN
CAPTJACK
M ERIDIAN
ALVEY
ALL STON
KEELER
PEARL
ROUNDM T
OLINDA
JOHN DAY
M ARION
LANE
GRIZ ZLY
BUCKLEY
THEDALLES
OSTRANDER SLAT T
M cNARY(1169 M W)
BOARDM AN
PAUL /CENT RALIA
RAVER
M ONROE
CUSTER
ECHOLAKE
CHIEFJOE GRAND COULEE
SCHULT Z
HANFORD
ASHE
VANTAG E
LOWM ON
LITGOOSE
LOWGRANITE
TAFT
GARRISON
DWORSHAK
TOWNSENDBROADVIEW
BELL
DIXONVILLE
BENLOM OND
NAUG HTON
ANACONDA
ATLANTICCITY
ROCKSPRINGS
M ONUM ENT
M USTANG
SPENCE
BILLING S
YELL OWTAIL
CUSTE R
GREATFALLS
OVANDO
HO TSPRING S
CABGO RGE
NOXON
LOLO
HELLSCANYON
ROUNDUP
OXBOW
BROWNLEE
BO ISE
ENTERPRISE
WALLAWALLA
LAG RANDE
HATWAI
M OSC OW
BENEWAH
RIVERT ON
BUFFALO
OREGO NBASIN
THERM O POLIS
WYODAK
CASPER
SHERIDAN
PLATTE
DAVE JOHNSTON
M ILES C ITYDC TIE
GRANTSPASS
CO PCO
LONEPINE
ROSS
ONTARIO
CALDWELLBURNS
WANETA
BOUNDARY
VACA-DIXON
T RACY
TESLA
TABLEM T
LOSBANOS
MOSSLANDING
TERM INAL
M ONA
FOUR CORNERS
90SOUTH
CAM PWILLIAM S
BO NANZ A
HUNTINGTON
SIGURD
IPP
GONDER
HARRYALLEN
M ACHACE KFTCHURCHILL
AUSTIN
PAVANT
HUNTER
SYLM AR
ADELANT O
GLENCANYON
VALM Y(562 M W)
HUM BOL DT
TRACY
VALLE YROAD
CROSS-OVER
AM PS
JEFFERSON
DIL LONPET ERSONFLATS
DRUM
WEEDJCT
CASCADE
REST ON
OLYM PIA
ING LEDOW
ROCKYREACH
M IDWAY
LIBBY
HUNGRY HORSE
CRAIG
SAN JUAN
HAYDEN
LARAMIERIVER
ARCHER
AULT
RIFLE
M ONTROSE
PINTO
CURECANTI PONCHA
SIDNEY
STORY
L E G E N D:
500K V
+-500KVD C
345K V230K V115-161K V
LANGE
WESTHILL
STEG AL
COM ANCHEM IDWAY
DANIELS PARKMALTA
SM OKY HILL
PAW NEE(530 M W)
VALMONT
DILLON
BE AVER
WARNERHILL TOP
BORDERTOW N
REDBUTTE
FLAM INGGORGE
T REASURETON
K-FALLSCO GEN
BOYLE
NLE W ISTON
DIABLO
GATES
M IDWAY
RINALDI
VINCENT
VICTORVILLE
LUGO
M IRALOM ASERRANO
VALLEY
DEVERS
M IG UEL IMPE RIALVALLEY
M OJ AVE
EL DORADO
M CCULLO UGH
M EAD
MARKETPLACE
NAVAJO
M OENKOPI
YAVAPAI
TABLE M ESA
PALO VERDE
WESTWING
FLAGSTAFF
PINNACLE PEAK
CHOLLA
NORTH GILA LIBERTY
KYRENE SILVERKING
CORONADO
SOUTH
BICKNELL VAIL
GREENLEE
SPRINGERVILLE
SAGUARO
TORT OLIT A
PARKER
PRESCOT T
ROUNDVALLEY
SEL IGM ANDAVIS
CAM INO
EAGL EM T.
BLYTHE
KNOB
GILATIJUANA
M ETROPOLIJUAREZ
LOMAS
CIPRES
LAROSIT A
SAN LUIS
M EXICALI
INTERGENSEM PRA
M ERIDIAN
CHEEKYE
M ALASPINA
DUNSM UIR
SAHTLAM
GOLD RIVER
ARNOT T
CLAYBURN
ROSEDALE
WHALEACH
BRIDG ERIVER
NICOLA
KELLYLAKE
100 M ILEHOUSE
SODACREEK
BARLOW
WILLISTON
GL ENANNAN
TELKWA
SKEENA
PRINCE RUPERT
KITM AT
KEM ANO
SAVONA
M ICA
REV ELSTOKE
ASHTONCREEK
SELKIRK CRANBROOK
INVERM ERE
NAT AL
PEIGAN N. L ETHBRIDG E
LANGDON
JANETSARCEE
REDDEER
BENALT O
BRAZEAU
BICKERDIKE KEEPHILLSELLERS LIE
W. BROOKS
WAREJTN. JENNER
EM PRESS
SHEERNESS
EAST EDM ONTONCLOVE RBAR
LAMOUREUX
DEERLAND
WHITEFISHLAKE
MARGUERITELAKE
RUTH LAKE
M ITS UE
N. CALDER
N. BARRHEAD
LITTLESM OKY
LOUISECREEK
SAGITAWAH
WABAM UN
SUNDANCE
M CKINLEY
P.E.G .S .
AM BROSIA WES TMESA
B-A
NORTON
OJO
T AOS
BLACKWATER
AR TESIAAM RAD
CALIENTENEWM AN
ARROYO
DIABLO
LUNA
HIDALG O
LEUPP
EL CENTRO
KENNEDY
PEACE CANYO N
PEACE R IVER
BATT LE RIVER
M ETISKOW
LEUPP
ELCENTRO
KDY 5CX3
PCN500
GMS500
BAT RV79
M ETI S644
LEUPP
ELCENTRO
KDY 5CX3
PCN500
GMS500
BAT RV79
M ETI S644
Northwest to Canada
Congested Paths:
COI
Idaho to MontanaBridger West
Significant N-S Congestion
QUESTIONS?
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