march 4, 2004
Post on 09-Feb-2016
32 Views
Preview:
DESCRIPTION
TRANSCRIPT
Rocky Mountain Area Transmission Study RRocky ocky MMountain ountain AArea rea TTransmission ransmission SStudytudy
Steering Committee Meeting
2013 Case
Alt 1 & 2 - Iteration 2 – Test Transmission SolutionsAlt 3 & 4 – Iteration 1 - Define Congestion
March 4, 2004
2 2013 Case
Observation/Qualifications – Alt 1 & 2
Results from Alternative 2 (regionally “optimized”- pseudo IRP for the region) shows greater value to the Rocky Mountain region over Alternative 1 (existing & uncoordinated company IRPs)
Results:• Quantify the value of Alternate 2 over Alternate 1 • Validate the need to build new transmission to integrate “new” resources in the
Rocky Mountain area • Highlight the need to reinforce the Bridger and Central Wyoming transmission
(LMP values ~$10 to $20 lower than other locations, even within the region). • Pave the way to consider reinforcing export paths ($57 LMP at LADWP vs $22 at
Laramie River) Reminder, results account for just VOM costs; no
consideration has been given thus far to transmission & resources capital costs
3 2013 Case
Generation Alternatives for 2013 runs
20% of wind nameplate applies toward capacity
Designed Alternative 1 based RMATS load growth, IRPs and minimum new transmission; configured incremental resource additions in each state to meet projected load growth plus reserves in that state; major wind in CO-E and SW Wyoming close to load centers.Designed Alternative 2 based on RMATS load growth with a focus on Powder River coal and open range wind (cheaper resource cost) and may require more transmission in the region. Designed Alternative 3 as an export case (incremental resources equal to 2 times RMATS load growth) with additional Powder River (and Utah) coal and open range wind necessitating more transmission for export.Designed Alternative 4 as a larger export case (3 times RMATS load growth) Powder River (and Utah) coal and open range wind necessitating more transmission for export.
1 2 3 4Coal 1250 500 1540 2500Gas 210 210 210 603Wind 800 500 800 1500CoalGasWind 250 250CoalGasWind 125 125 125 125Coal 575GasWind 440CoalGas 260 260Wind 225 280 500 1000Coal 250 500 750GasWind 0 950 1000Coal 359 609 1109GasWind 50 100 200CoalGasWindCoal 200 950 950GasWindCoalGasWind 250 100 200 320Coal 575 575 575 575Gas 525 140 140 140Wind 120 250CoalGasWind 250 250 250 250CoalGasWind 125CoalGasWind 500 500 1500CoalGasWind 925 1150 1000 2450Coal 700 1400 2100Gas 50 50 50Wind 800Coal 575 575 575GasWind 160 230CoalGasWind
Total Coal 2600 2959 6149 8559Total Gas 785 350 660 1053Total Wind Nameplate 2575 2955 4955 10440Total Firm Energy 3900 3900 7800 11700
State Bubble Gen Type Name Plate Generation Values
Colorado
Idaho
Montana
Colorado East
Colorado West
KGB
Mid Point/Boise/Snake
Montana West
WYO(IDA)
LRS
SW Wyoming
Wyoming
Black Hills
Broadview
Utah
Wyoming
2013 ALTERNATIVE CASES
WYO(MT)
Colstrip/Crossover
Bonanza
Utah South
Big Horn Basin
IPP
Utah North
Jim Bridger
Yellowtail
4 2013 Case
Iteration 2 – TAWG Solutions
1000 MW1-345 kV Colstrip to Reno1-345/230 kV at Reno2-345/230 kV at Colstrip1-345 kV Treasureton to Ben Lomond
West of Broadview
500 MW345/230 kV at NaughtonWest of Naughton
700 MW1-345 kV Bridger to Naughtonto Ben Lomond1-230 kV Midpoint to Boise
Bridger West
800 MW1-345 kV Bridger to MidpointBridger West
500 MW1-345 kV Bridger to Miners to Cheyenne
TOT 4A
700 MW1-345 kV DJ-LRSWY - LRS
1000 MW1-345 kV Cheyenne to Ault to Green Valley1-345 kV Reno to LRS to Ault to Green Valley
TOT 3
700 MW1-345 kV Reno to DJ Cheyenne1-345 kV Reno to LRS
C Wyoming
Incremental Improvement
(MW)
LinePath
1000 MW1-345 kV Colstrip to Reno1-345/230 kV at Reno2-345/230 kV at Colstrip1-345 kV Treasureton to Ben Lomond
West of Broadview
500 MW345/230 kV at NaughtonWest of Naughton
700 MW1-345 kV Bridger to Naughtonto Ben Lomond1-230 kV Midpoint to Boise
Bridger West
800 MW1-345 kV Bridger to MidpointBridger West
500 MW1-345 kV Bridger to Miners to Cheyenne
TOT 4A
700 MW1-345 kV DJ-LRSWY - LRS
1000 MW1-345 kV Cheyenne to Ault to Green Valley1-345 kV Reno to LRS to Ault to Green Valley
TOT 3
700 MW1-345 kV Reno to DJ Cheyenne1-345 kV Reno to LRS
C Wyoming
Incremental Improvement
(MW)
LinePath
Alternative 1
Alternative 2Alternative 1
5 2013 Case
NELWAY
BRIDGER(2240 M W)
COLSTRIP(2280 M W)
GOSHEN
BORAH
KINPORT
M IDPOINT
TAFT
GARRISON
DW ORSHAK(476 M W)
TOW NSENDBROADVIEW
BELL
BENLOMOND
NAUG HTON(723 M W )
ANACONDA
ATLANTICCITY
ROCKSPRING S
M ONUM ENT
MUSTANG
SPENCE
BR ID G ERW EST
T OT 4A
W EST O FBR OADVIEW
BILLINGS
Y ELLOWTAIL
CUSTER
GREATFALLS
OVANDO
HOTSPRINGS
CABGORGE
(230 M W)NOXON
(561 M W)
LOLO
HELLSCANYON(450 M W)
OXBOW(220 M W )
BROWNLEE(730 M W )
BOISE
HATWAI
MOSCOW
BENEW AH
RIVERTON
BUFFALO
OREGONBAS IN
THERM OPOLIS
WY ODAK(375 M W )
CASPER
SHERIDAN
PLATTE
DAVE JOHNSTON(830 M W)
M ILES CITYDC T IE
CALDWELL
WANETA
BOR AHW EST
TERMINAL
M ONA
FOUR CORNERS(2060 M W)
90SOUTHCAM P
WILLIAM S
BONANZA(425 M W )
HUNTINGTON(894 M W)
SIGURD
IPP(1800 M W)
GONDER
HARRYALLEN
M ACHACEK
PAVANTHUNTER
(1341 M W)
TO ADELANTO GLENCANYON
HUMBOLDT
M ON T ANA T ONOR T HW EST
CROSS-OVER
W EST O FCR O SSO VER
AM PS
IDAHO -M O NT AN A
JEFFER SON
DILLONPETERSONFLATS
IDAHO -SIERR A
BR O W N LEEEAST
T O T 4B
BON ANZAW ES T
IPPDC
PAVAN T-GO ND ER &IPP-G O NDER
IPP -M O NA
IPP -G ON DE R
LIBBY(632 M W)
HUNGRY HORSE(322 M W)
W EST OFH AT W AI
COLO
MONTANA
W YOIDAHO
UTAH
PAT H C
CRAIG(1224 M W)
SAN JUAN(1798 M W)
HAYDEN(488 M W)
LARAM IERIVER
ARCHER
AULT
RIFLE
M ONTROSE
PINTO
CURECANTI
T O T2C
T OT2B
T OT2A
T O T1A
PONCHA
TO T3
SIDNEY
STORY
L E G E N D:
500KV
+-500KVDC
345KV230KV115-161KV
LANGE
WESTHILL
STEGAL
COM ANCHE(725 M W)
M IDWAY
DANIELS PARKM ALTA
SMOKY HILL
PAWNEE(530 M W)
VALM ONT
DILLON
REDBUTTE
SOU TH O FYEL LO W T AIL
T O T 7
MO N TANA T OW YO M IN G
SW W YO M INGT O B ON ANZA
FLAM INGGORGE
TREASURETON
W ES T O FCO LSTR IP
MT - SE
NLE W IS TO N
Lam ar
T OT 5
Falcon
TO T2B2
T OT2B 1
W Y-LRS
BH -LR SBH -W Y
BH -B HB
N to SUtaH
Top Congested Paths
Transmission Constraints - Alternative 1
6 2013 Case
NELWAY
BRIDGER(2240 M W)
COLSTRIP(2280 M W)
GOSHEN
BORAH
KINPORT
M IDPOINT
TAFT
GARRISON
DW ORSHAK(476 M W)
TOW NSENDBROADVIEW
BELL
BENLOMOND
NAUG HTON(723 M W )
ANACONDA
ATLANTICCITY
ROCKSPRING S
M ONUM ENT
MUSTANG
SPENCE
BR ID G ERW EST
T OT 4A
W EST O FBR OADVIEW
BILLINGS
Y ELLOWTAIL
CUSTER
GREATFALLS
OVANDO
HOTSPRINGS
CABGORGE
(230 M W)NOXON
(561 M W)
LOLO
HELLSCANYON(450 M W)
OXBOW(220 M W )
BROWNLEE(730 M W )
BOISE
HATWAI
MOSCOW
BENEW AH
RIVERTON
BUFFALO
OREGONBAS IN
THERM OPOLIS
WY ODAK(375 M W )
CASPER
SHERIDAN
PLATTE
DAVE JOHNSTON(830 M W)
M ILES CITYDC T IE
CALDWELL
WANETA
BOR AHW EST
TERMINAL
M ONA
FOUR CORNERS(2060 M W)
90SOUTHCAM P
WILLIAM S
BONANZA(425 M W )
HUNTINGTON(894 M W)
SIGURD
IPP(1800 M W)
GONDER
HARRYALLEN
M ACHACEK
PAVANTHUNTER
(1341 M W)
TO ADELANTO GLENCANYON
HUMBOLDT
M ON T ANA T ONOR T HW EST
CROSS-OVER
W EST O FCR O SSO VER
AM PS
IDAHO -M O NT AN A
JEFFER SON
DILLONPETERSONFLATS
IDAHO -SIERR A
BR O W N LEEEAST
T O T 4B
BON ANZAW ES T
IPPDC
PAVAN T-GO ND ER &IPP-G O NDER
IPP -M O NA
IPP -G ON DE R
LIBBY(632 M W)
HUNGRY HORSE(322 M W)
W EST OFH AT W AI
COLO
MONTANA
W YOIDAHO
UTAH
PAT H C
CRAIG(1224 M W)
SAN JUAN(1798 M W)
HAYDEN(488 M W)
LARAM IERIVER
ARCHER
AULT
RIFLE
M ONTROSE
PINTO
CURECANTI
T O T2C
T OT2B
T OT2A
T O T1A
PONCHA
TO T3
SIDNEY
STORY
L E G E N D:
500KV
+-500KVDC
345KV230KV115-161KV
LANGE
WESTHILL
STEGAL
COM ANCHE(725 M W)
M IDWAY
DANIELS PARKM ALTA
SMOKY HILL
PAWNEE(530 M W)
VALM ONT
DILLON
REDBUTTE
SOU TH O FYEL LO W T AIL
T O T 7
MO N TANA T OW YO M IN G
SW W YO M INGT O B ON ANZA
FLAM INGGORGE
TREASURETON
W ES T O FCO LSTR IP
MT - SE
NLE W IS TO N
Lam ar
T OT 5
Falcon
TO T2B2
T OT2B 1
W Y-LRS
BH -LR SBH -W Y
BH -B HB
N to SUtaH
Transmission Constraints - Alternative 2
Top Congested Paths
Rocky Mountain Area Transmission Study RRocky ocky MMountain ountain AArea rea TTransmission ransmission SStudytudy
Alternative 1Iteration 2
8 2013 Case
Transmission Additions – Alternative 1
RUN 1: Bridger to Naughton to Ben Lomond 345 line (Bridger
West and Naughton West) Miners to Bridger 345 and Miners 345/230
transformer. 230 Midpoint to Boise
Note: TOT 2C was the path with the highest congestion and opportunity cost, but was not included in Alternative 1 because the TAWG felt that it should be dealt with in an export case. Transmission additions to Path 2C will be analyzed in Alternatives 3 & 4.
9 2013 Case
Relieving Transmission Constraints-Alternative 1
NELWAY
BRIDGER(2240 M W)
COLSTRIP(2280 M W)
GOSHEN
BORAH
KINPORT
M IDPOINT
TAFT
GARRISON
DW ORSHAK(476 M W)
TOW NSENDBROADVIEW
BELL
BENLOMOND
NAUG HTON(723 M W )
ANACONDA
ATLANTICCITY
ROCKSPRING S
M ONUM ENT
MUSTANG
SPENCE
BR ID G ERW EST
T OT 4A
W EST O FBR OADVIEW
BILLINGS
Y ELLOWTAIL
CUSTER
GREATFALLS
OVANDO
HOTSPRINGS
CABGORGE
(230 M W)NOXON
(561 M W)
LOLO
HELLSCANYON(450 M W)
OXBOW(220 M W )
BROWNLEE(730 M W )
BOISE
HATWAI
MOSCOW
BENEW AH
RIVERTON
BUFFALO
OREGONBAS IN
THERM OPOLIS
WY ODAK(375 M W )
CASPER
SHERIDAN
PLATTE
DAVE JOHNSTON(830 M W)
M ILES CITYDC T IE
CALDWELL
WANETA
BOR AHW EST
TERMINAL
M ONA
FOUR CORNERS(2060 M W)
90SOUTHCAM P
WILLIAM S
BONANZA(425 M W )
HUNTINGTON(894 M W)
SIGURD
IPP(1800 M W)
GONDER
HARRYALLEN
M ACHACEK
PAVANTHUNTER
(1341 M W)
TO ADELANTO GLENCANYON
HUMBOLDT
M ON T ANA T ONOR T HW EST
CROSS-OVER
W EST O FCR O SSO VER
AM PS
IDAHO -M O NT AN A
JEFFER SON
DILLONPETERSONFLATS
IDAHO -SIERR A
BR O W N LEEEAST
T O T 4B
BON ANZAW ES T
IPPDC
PAVAN T-GO ND ER &IPP-G O NDER
IPP -M O NA
IPP -G ON DE R
LIBBY(632 M W)
HUNGRY HORSE(322 M W)
W EST OFH AT W AI
COLO
MONTANA
W YOIDAHO
UTAH
PAT H C
CRAIG(1224 M W)
SAN JUAN(1798 M W)
HAYDEN(488 M W)
LARAM IERIVER
ARCHER
AULT
RIFLE
M ONTROSE
PINTO
CURECANTI
T O T2C
T OT2B
T OT2A
T O T1A
PONCHA
TO T3
SIDNEY
STORY
L E G E N D:
500KV
+-500KVDC
345KV230KV115-161KV
LANGE
WESTHILL
STEGAL
COM ANCHE(725 M W)
M IDWAY
DANIELS PARKM ALTA
SMOKY HILL
PAWNEE(530 M W)
VALM ONT
DILLON
REDBUTTE
SOU TH O FYEL LO W T AIL
T O T 7
MO N TANA T OW YO M IN G
SW W YO M INGT O B ON ANZA
FLAM INGGORGE
TREASURETON
W ES T O FCO LSTR IP
MT - SE
NLE W IS TO N
Lam ar
T OT 5
Falcon
TO T2B2
T OT2B 1
W Y-LRS
BH -LR SBH -W Y
BH -B HB
N to SUtaH
SolutionsTop Congested Paths
10 2013 Case
48 4850 50 48 4850 50
50 4950 49
47 4648 47
49 48 48 4748 47 48 47
50 5050 49 44 46
46 47
51 5050 48 41 41 40 40
52 51 47 46 47 4649 49 39 39
47 46
29 29 35 3551 51 48 48 48 46 40 3950 50 46 46
49 4152 53 49 48 49 4952 52 49 48
43 4247 46
47 4747 47 44 44
47 4750 5250 51 47 47 45 43
48 48 47 4647 4847 48
53 5453 54
52 5752 56
48 4748 47 48 47
54 53 49 4754 52
48 4748 47
BC Hydro
Montana- West
Broadview
West of Colstrip
Yellowtail
Idaho- West
Goshen
Jim Bridger
Utah- North
Utah- South
IPP
Bonanza
Colorado- West
Colorado- East
Laramie RiverSW Wyoming
C Wyoming
N Wyoming (BHB) Black Hills
Aquila
LADWP
San Diego
SOCOLIF
PG & E
Northwest
ArizonaNew Mexico
Nevada
Sierra
WAPA L.C.
Mexico C
Imperial
AlbertaAlbertaLMP Prices
Average Annual
Load LMP Generation LMP
Alternative 1- No Tx Additions
Alternative 1- w/ Tx Additions
11 2013 Case
Change in Congestion/Congestion Costs with Tx SolutionsAlternative 1
Interface Location[Direction]
Current Forward
limit (MW)
Current Reverse
limit (MW)
Opportunity cost of next $/MW
% hours congested
W/OTx
W/Tx
W/OTx
W/Tx
TOT 2C S.W Utah to S.E. Nevada [N – S]
300 300 77,804 67,791 40% 37%
Bridger West S.W. Wyoming to S.E. Idaho & to Northwest [E – W]
2,200 N/A 60,978 0 28% 0%
West of Naughton S.W. Wyoming to N Utah [E – W]
920 N/A 39,533 1,371 13% 0%
Path C N Utah/ S Idaho [S – N] 1,000 1,000 19,909 3,649 6%* 2%
Bonanza West N.E. Utah to Central Utah [N – S]
785 N/A 17,659 18,177 8% 10%
SW Wyoming to Bonanza
S.W. Wyoming to N.E. Utah [N – S]
200 200 17,602 34,018 9% 13%
Idaho to Montana E. Idaho to W. Montana[S – N]
337 337 4,741 23,429 1% 3%
* Reaches seasonal capacity of 750 MW
Opportunity Cost: the cost of delivering the next 1 MW of power to a particular location, or the savings from reducing load by 1 MW at that location (sometimes called shadow price)
12 2013 Case
Western Interconnect Impact for 2013Alternative 1
Interface limitation
Annual VOM ($000)
Delta from Base Annual VOM ($000)
Annual average LMP Delta from base annual average
LMPLoad
($/MWh)Generator ($/MWh)
Load ($/MWh)
Generator ($/MWh)
w/o Transmission Additions
20,069,399 49.87 48.54
All interfaces unconstrained
19,825,590 (243,809) 49.38 49.38 (.49) .84
Only internal RM interfaces are unconstrained
19,986,953 (82,446) 49.96 49.22 .09 .68
With Transmission Additions
20,017,760 (51,639) 49.93 49.15 .06 .61
Adjusted 2008 Base Case
24,641,043 4,571,644 N/A N/A N/A N/A
Rocky Mountain Area Transmission Study RRocky ocky MMountain ountain AArea rea TTransmission ransmission SStudytudy
Alternative 2Iteration 2
14 2013 Case
RUN 1: Reno to DJ to LRS to Cheyenne to Ault to Green Valley 345 line (TOT 3) Bridger to Midpoint 345 line via Treasureton) (Bridger West) Miners to Cheyenne 345 line and Miners 345/230 transformer (TOT 4A) Miners to Bridger 345 and Miners 345/230 transformer. 230 Midpoint to Boise
RUN 2: (Add to Run 1): Reno to LRS to Ault to Green Valley 345 line (if TOT 3 still a problem) Bridger to Naughton to Ben Lomond 345 line (if Bridger West or Naughton West still a
problem)
RUN 3: (Add to Run 1 plus Run 2): Colstrip to Reno 345kV Colstrip: 2 - 345/230 kV Transformers to integrate generation Reno 345/230 Transformer to integrate generation Treasureton to Ben Lomond 345kV (if Path C overloaded) Loop Bridger to Midpoint at Treasureton Loop Borah Ben Lomond at Treasureton
Transmission Additions – Alternative 2
15 2013 Case
NELWAY
BRIDGER(2240 M W)
COLSTRIP(2280 M W)
GOSHEN
BORAH
KINPORT
M IDPOINT
TAFT
GARRISON
DW ORSHAK(476 M W)
TOW NSENDBROADVIEW
BELL
BENLOMOND
NAUG HTON(723 M W )
ANACONDA
ATLANTICCITY
ROCKSPRING S
M ONUM ENT
MUSTANG
SPENCE
BR ID G ERW EST
T OT 4A
W EST O FBR OADVIEW
BILLINGS
Y ELLOWTAIL
CUSTER
GREATFALLS
OVANDO
HOTSPRINGS
CABGORGE
(230 M W)NOXON
(561 M W)
LOLO
HELLSCANYON(450 M W)
OXBOW(220 M W )
BROWNLEE(730 M W )
BOISE
HATWAI
MOSCOW
BENEW AH
RIVERTON
BUFFALO
OREGONBAS IN
THERM OPOLIS
WY ODAK(375 M W )
CASPER
SHERIDAN
PLATTE
DAVE JOHNSTON(830 M W)
M ILES CITYDC T IE
CALDWELL
WANETA
BOR AHW EST
TERMINAL
M ONA
FOUR CORNERS(2060 M W)
90SOUTHCAM P
WILLIAM S
BONANZA(425 M W )
HUNTINGTON(894 M W)
SIGURD
IPP(1800 M W)
GONDER
HARRYALLEN
M ACHACEK
PAVANTHUNTER
(1341 M W)
TO ADELANTO GLENCANYON
HUMBOLDT
M ON T ANA T ONOR T HW EST
CROSS-OVER
W EST O FCR O SSO VER
AM PS
IDAHO -M O NT AN A
JEFFER SON
DILLONPETERSONFLATS
IDAHO -SIERR A
BR O W N LEEEAST
T O T 4B
BON ANZAW ES T
IPPDC
PAVAN T-GO ND ER &IPP-G O NDER
IPP -M O NA
IPP -G ON DE R
LIBBY(632 M W)
HUNGRY HORSE(322 M W)
W EST OFH AT W AI
COLO
MONTANA
W YOIDAHO
UTAH
PAT H C
CRAIG(1224 M W)
SAN JUAN(1798 M W)
HAYDEN(488 M W)
LARAM IERIVER
ARCHER
AULT
RIFLE
M ONTROSE
PINTO
CURECANTI
T O T2C
T OT2B
T OT2A
T O T1A
PONCHA
TO T3
SIDNEY
STORY
L E G E N D:
500KV
+-500KVDC
345KV230KV115-161KV
LANGE
WESTHILL
STEGAL
COM ANCHE(725 M W)
M IDWAY
DANIELS PARKM ALTA
SMOKY HILL
PAWNEE(530 M W)
VALM ONT
DILLON
REDBUTTE
SOU TH O FYEL LO W T AIL
T O T 7
MO N TANA T OW YO M IN G
SW W YO M INGT O B ON ANZA
FLAM INGGORGE
TREASURETON
W ES T O FCO LSTR IP
MT - SE
NLE W IS TO N
Lam ar
T OT 5
Falcon
TO T2B2
T OT2B 1
W Y-LRS
BH -LR SBH -W Y
BH -B HB
N to SUtaH
Relieving Transmission ConstraintsAlternative 2
SolutionsTop Congested Paths
16 2013 Case
LMP PricesAverage Annual
Load LMP Generation LMP
Alternative 2- no Tx addition
Alternative 2- w/ Tx additions
48 4850 50 48 4850 51
50 4951 49
29 2539 38
47 46 27 2648 47 38 37
50 4950 50 28 28
40 40
50 4849 48 27 25 35 34
50 49 42 40 44 4348 48 24 16
43 41
25 25 30 2350 50 46 46 45 43 24 2249 50 43 42
48 3952 53 49 49 48 4752 52 49 48
42 4246 45
47 4747 47 49 49
45 4650 5150 51 48 47 46 44
47 47 46 4447 4847 48
53 5453 54
52 5752 57
48 4748 47 49 47
54 53 49 4754 53
48 4748 47
BC Hydro
Montana- West
Broadview
West of Colstrip
Yellowtail
Idaho- West
Goshen
Jim Bridger
Utah- North
Utah- South
IPP
Bonanza
Colorado- West
Colorado- East
Laramie RiverSW Wyoming
C Wyoming
N Wyoming (BHB) Black Hills
Aquila
LADWP
San Diego
SOCOLIF
PG & E
Northwest
ArizonaNew Mexico
Nevada
Sierra
WAPA L.C.
Mexico C
Imperial
AlbertaAlberta
17 2013 Case
Interface Location[Direction]
Current Forward
limit (MW)
Current Reverse
limit (MW)
Opportunity cost of next
$/MW
% hours congested
W/OTx
W/Tx
W/OTx
W/Tx
C. Wyoming to Black Hills
C. Wyoming to N.E. Wyoming [SE – NE]
332 332 265,617 21,220 84% 9%
TOT 3 S.E. Wyoming to N.E. Colorado [N – S]
1,424 N/A 238,969 9,213 76% 10%
Bridger West S.W. Wyoming to S.E. Idaho & to Northwest [E – W]
2,200 N/A 228,819 35 73% 0%
West of Broadview South Central Montana[E – W]
2,573 N/A 172,681 98,499 51% 36%
West of Naughton S.W. Wyoming to N Utah [E – W]
920 N/A 97,736 16,138 32% 6%
TOT 2C S.W Utah to S.E. Nevada [N – S]
300 300 57,830 82,759 31% 31%
Montana to Northwest W. Montana to E. Washington [E – W]
2,200 1,350 24,361 28,493 8% 11%
Idaho to Montana E. Idaho to W. Montana [S – N]
337 337 45,982 26,974 4% 2%
Change in Congestion/Congestion Costs with Tx SolutionsAlternative 2
18 2013 Case
Western Interconnect Impact for 2013Alternative 2
Interface limitation Annual
VOM
($000)
Delta from Base
Annual VOM ($000)
Annual average LMP
Delta from base annual average
LMP
Load ($/MWh
Generator ($/MWh)
Load ($/MWh)
Generator ($/MWh)
w/o Transmission Additions
20,075,091
49.81 47.54
All interfaces unconstrained
19,653,573
(421,513) 49.41 49.41 (.40) 1.87
Only internal RM interfaces are unconstrained
19,846,737
(228,354) 49.77 48.78 (.04) 1.24
With Transmission Additions
19,850,473
(224,618) 49.80 48.70 (.01) 1.16
Adjusted 2008 Base Case 24,641,043
4,565,952 N/A N/A N/A N/A
Rocky Mountain Area Transmission Study RRocky ocky MMountain ountain AArea rea TTransmission ransmission SStudytudy
Alternatives 3 & 4Iteration 1
20 2013 Case
NELWAY
BRIDGER(2240 M W)
COLSTRIP(2280 M W)
GOSHEN
BOR AH
KINPORT
MIDPOINT
TAFT
GARRISON
DWORSHAK(476 M W)
TOW NSENDBROADVIEW
BELL
BENLOM OND
NAUGHTON(723 M W)
ANACONDA
ATLANTICCITY
ROCKSPRINGS
M ONUM ENT
M USTANG
SPENCE
BR ID G ERW E ST
T OT 4A
W ES T OFBR OADVIE W
BILLINGS
Y ELLOW TAIL
CUSTER
GREATFALLS
OVANDO
HOTSPRINGS
CABGORGE
(230 M W)NOXON
(561 M W)
LOLO
HELLSCANY ON(450 M W )
OXBOW(220 M W)
BROWNLEE(730 M W)
BOISE
HATW AI
M OSCOW
BENEWAH
RIVERTON
BUFFALO
OREGONBASIN
THERM OPOLIS
WY ODAK(375 M W)
CASPER
SHERIDAN
PLATTE
DAVE JOHNSTON(830 M W)
MILES CITYDC TIE
CALDWELL
WANETA
BO RAHW EST
TERM INAL
M ONA
FOUR CORNERS(2060 M W)
90SOUTHCAM P
W ILLIAM S
BONANZA(425 M W)
HUNTINGTON(894 M W)
SIGURD
IPP(1800 M W)
GONDER
HARRYALLEN
MACHACEK
PAVANTHUNTER
(1341 M W)
TO ADELANTO GLENCANY ON
HUM BOLDT
M O NT ANA TONO RT HW EST
CROSS-OVER
W EST OFCRO SSO VER
AMPS
ID AHO -M ON T ANA
JEFFERSON
DILLONPETERSONFLATS
IDAHO -SIER RA
BR OW NLE EEAST
T O T 4B
BO NAN ZAW EST
IPPDC
PAV AN T -G OND ER &IPP-GO N DER
IP P -M ON A
IPP-G O ND ER
LIBBY(632 M W)
HUNGRY HORSE(322 M W)
W EST OFHAT W AI
COLO
MONTANA
W YOIDAHO
UTAH
PAT H C
CRAIG(1224 M W)
SAN JUAN(1798 M W)
HAY DEN(488 M W)
LARAM IERIVER
ARCHER
AULT
RIFLE
MONTROSE
PINTO
CURECANTI
T OT2C
T OT2B
T O T2A
T O T1A
PONCHA
T OT3
SIDNEY
STORY
L E G E N D:
500KV
+-500KVDC
345KV230KV115-161KV
LANGE
WESTHILL
STEGAL
COMANC HE(725 M W)
M IDWAY
DANIELS PARKM ALTA
SMOKY HILL
PAWNEE(530 M W)
VALM ONT
DILLON
REDBUTTE
SO UT H O FYELLO W T AIL
T O T 7
M ON T ANA T OW YO M ING
SW W YOM IN GTO B O NANZA
FLAM INGGORGE
TREASURETON
W EST OFCO LST R IP
M T - S E
NLE W IST O N
Lamar
T OT 5
Fa lcon
T OT2B 2
TO T2B1
W Y -LR S
BH-LRSBH -W Y
BH -BHB
N to SUtaH
Top Congested Paths
Transmission Constraints - Alternative 3(w/o new transmission)
21 2013 Case
Transmission Congestion/Congestion CostsAlternative 3
Interface Location[Direction]
Forward limit
(MW)
Reverse limit
(MW)
Opportunity cost of next
MW
% hours congested
Black Hills to C Wyoming E. Wyoming to C. Wyoming [E – W]
332 332 274,854 99%
Bridger West S.W. Wyoming to S.E. Idaho & to Northwest [E – W]
2,200 N/A 244,743 83%
PAVANT, INTRMTN - GONDER 230 KV
C. Utah to C. Nevada [E – W] 440 235 212,840 60%
TOT 2C S. Utah to S.E. Nevada [N – S] 300 300 193,873 46%
West of Broadview Central Montana [E – W] 2,573 N/A 181,721 60%
Montana to Northwest W. Montana to E. Washington 2,200 1,350 173,051 71%
TOT 3 S.E. Wyoming to N.E. Colorado [N – S]
1,424 N/A 136,470 50%
INTERMOUNTAIN - MONA 345 KV
Central Utah [W – E] 1,400 1,200 131,121 65%
Idaho to Montana E. Idaho to W. Montana [S – N] 337 337 65,054 6%
TOT 2B2 S. Utah to N. Arizona [N – S] 265 300 55,142 33%
SW of 4 Corners S.E. Utah to N.W. New Mexico [SE – NW]
2,325 N/A 41,112 16%
22 2013 Case
Western Interconnect Impact for 2008Alternative 3
Interface limitation
Annual VOM ($000)
Delta from Base
Annual VOM ($000)
Annual average LMP
Delta from base annual average
LMP
Load ($/MW)
Generator ($/MW)
Load ($/MW)
Generator ($/MW)
Base Case 19,583,034 48.40 45.45
All interfaces unconstrained
18,297,721 (1,285,313) 47.65 47.65 (.75) 2.20
Only internal RM interfaces are unconstrained
18,814,479 (768,555) 46.55 45.00 (1.85) (.45)
2008 Base case (Adjusted)
24,641,043 (5,058,009) N/A N/A N/A N/A
23 2013 Case
NELWAY
BRIDGER(2240 M W)
COLSTRIP(2280 M W)
GOSHEN
BOR AH
KINPORT
MIDPOINT
TAFT
GARRISON
DWORSHAK(476 M W)
TOW NSENDBROADVIEW
BELL
BENLOM OND
NAUGHTON(723 M W)
ANACONDA
ATLANTICCITY
ROCKSPRINGS
M ONUM ENT
M USTANG
SPENCE
BR ID G ERW E ST
T OT 4A
W ES T OFBR OADVIE W
BILLINGS
Y ELLOW TAIL
CUSTER
GREATFALLS
OVANDO
HOTSPRINGS
CABGORGE
(230 M W)NOXON
(561 M W)
LOLO
HELLSCANY ON(450 M W )
OXBOW(220 M W)
BROWNLEE(730 M W)
BOISE
HATW AI
M OSCOW
BENEWAH
RIVERTON
BUFFALO
OREGONBASIN
THERM OPOLIS
WY ODAK(375 M W)
CASPER
SHERIDAN
PLATTE
DAVE JOHNSTON(830 M W)
MILES CITYDC TIE
CALDWELL
WANETA
BO RAHW EST
TERM INAL
M ONA
FOUR CORNERS(2060 M W)
90SOUTHCAM P
W ILLIAM S
BONANZA(425 M W)
HUNTINGTON(894 M W)
SIGURD
IPP(1800 M W)
GONDER
HARRYALLEN
MACHACEK
PAVANTHUNTER
(1341 M W)
TO ADELANTO GLENCANY ON
HUM BOLDT
M O NT ANA TONO RT HW EST
CROSS-OVER
W EST OFCRO SSO VER
AMPS
ID AHO -M ON T ANA
JEFFERSON
DILLONPETERSONFLATS
IDAHO -SIER RA
BR OW NLE EEAST
T O T 4B
BO NAN ZAW EST
IPPDC
PAV AN T -G OND ER &IPP-GO N DER
IP P -M ON A
IPP-G O ND ER
LIBBY(632 M W)
HUNGRY HORSE(322 M W)
W EST OFHAT W AI
COLO
MONTANA
W YOIDAHO
UTAH
PAT H C
CRAIG(1224 M W)
SAN JUAN(1798 M W)
HAY DEN(488 M W)
LARAM IERIVER
ARCHER
AULT
RIFLE
MONTROSE
PINTO
CURECANTI
T OT2C
T OT2B
T O T2A
T O T1A
PONCHA
T OT3
SIDNEY
STORY
L E G E N D:
500KV
+-500KVDC
345KV230KV115-161KV
LANGE
WESTHILL
STEGAL
COMANC HE(725 M W)
M IDWAY
DANIELS PARKM ALTA
SMOKY HILL
PAWNEE(530 M W)
VALM ONT
DILLON
REDBUTTE
SO UT H O FYELLO W T AIL
T O T 7
M ON T ANA T OW YO M ING
SW W YOM IN GTO B O NANZA
FLAM INGGORGE
TREASURETON
W EST OFCO LST R IP
M T - S E
NLE W IST O N
Lamar
T OT 5
Fa lcon
T OT2B 2
TO T2B1
W Y -LR S
BH-LRSBH -W Y
BH -BHB
N to SUtaH
Top Congested Paths
Transmission Constraints - Alternative 4(w/o new transmission)
24 2013 Case
Interface Location[Direction]
Forward limit (MW)
Reverse limit (MW)
Opportunity cost of next MW
% hours congested
Bridger West S.W. Wyoming to S.E. Idaho & to Northwest [E – W]
2,200 N/A 273,329 96%
Montana to Northwest W. Montana to E. Washington 2,200 1,350 253,687 79%
Black Hills to C Wyoming
E. Wyoming to C. Wyoming [E – W] 332 332 176,302 79%+
TOT 2C S. Utah to S.E. Nevada [N – S] 300 300 154,151 43%
West of Broadview Central Montana [E – W] 2,573 N/A 130,392 42%
Bonanza West E. Utah to C. Utah [E – W] 785 N/A 120,829 59%
TOT 3 S.E. Wyoming to N.E. Colorado [N – S]
1,424 N/A 102,056 56%
Idaho to Montana E. Idaho to W. Montana [S – N] 337 337 99,677 8%
TOT 2A S.W. Colorado [N – S] 690 N/A 97,253 50%
IPP DC C. Utah to S. California [NE – SW] 1,920 300 76,879 85%
TOT 1A W. Colorado to E. Utah [E – W] 650 N/A 64,263 59%
West of Naughton S.E. Wyoming to N. Utah [E – W] 920 N/A 47,928 20%
SW of 4 Corners S.E. Utah to N.W. New Mexico [SE – NW]
2,325 N/A 36,863 15%
TOT 2B2 S. Utah to N. Arizona [N – S] 265 300 32,405 23%
Transmission Congestion/Congestion CostsAlternative 4
25 2013 Case
Western Interconnect Impact for 2008Alternative 4
Interface limitation
Annual VOM ($000)
Delta from Base
Annual VOM ($000)
Annual average LMP
Delta from base annual average
LMP
Load ($/MW)
Generator ($/MW)
Load ($/MW)
Generator ($/MW)
Base Case 18,694,873 46.85 43.81
All interfaces unconstrained
16,609,281 (2,085,592) 45.71 45.71 (1.14) 1.90
Only internal RM interfaces are unconstrained
18,136,071 (558,802) 45.00 42.43 (1.85) (1.38)
2008 Base case (Adjusted)
24,641,043 (5,946,170) N/A N/A N/A N/A
top related