electric transmission system development in alberta
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Electric Transmission System Development in Alberta. Neil J. Brausen, P. Eng., Director System Planning APEGGA Calgary Branch Luncheon March 17, 2004. Electric Transmission System Development in Alberta. Industry Background and Structure AESO Core Business Functions - PowerPoint PPT PresentationTRANSCRIPT
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Electric Transmission System Development in AlbertaNeil J. Brausen, P. Eng., Director System Planning
APEGGA Calgary Branch Luncheon
March 17, 2004
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Electric Transmission System Development in Alberta
• Industry Background and Structure
• AESO Core Business Functions
• Transmission Planning Process
• Transmission System Development
• Questions
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Industry Background and Structure
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Alberta’s Electric Industry• single control area of 660,000 km²
• 20,000 km transmission; 450 substations
• B.C. & Sask. interconnections
• 8,570 MW system peak
• over 130 generating units
• 10,515 MW internal capacity net to grid
• over 200 market participants
BC
Alta
Sask
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ExistingGeneratingUnits
TransAlta/ATCO/EP
Market
Retailer
Marketer
Balancing Pool
Distribution Wire Service Provider
Retailer
Transmission
Transmission Facility Owners
Alberta’s Electric Market
New Generation (IPPs)
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Industry Model Post-Restructuring
competitiveforces
competitiveforces
naturalmonopoly
Generation
Transmission
Distribution
FunctionalSeparation
Vertically Integrated Utility
naturalmonopoly
Retail
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AESO Core Business Functions
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Who Is the AESO?• Statutory organization: integration of previous Power
Pool and Transmission Administrator functions
• Not-for-profit
• Revenue generated from trading charge and transmission tariff
• Hold no assets
• Impartial - no affiliation with industry players
• Regulated by the Energy and Utilities Board
• Governed by board of directors appointed by the Minister of Energy
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Electric Utilities Act
Minister of EnergyAppoints Board members , MSA & EUB Chair
MarketSurveillance Administrator
(MSA)
BalancingPool
Wholesale Energy Market
Transmission
Alberta Electric System Operator
Real-timeAlberta Electric
System Operator
Alberta Energy& Utilities
Board (EUB)Regulates AESO’s
Transmission business
Load Settlement
Industry Structure (June 2003)
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Transmission Planning Process
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Transmission Planning - The Process
• Determine the inputs.
• Identify the anticipated problems.
• Develop the alternatives.
• Analyse the alternatives.
• Choose the preferred solution.
• Initiate the project(s).
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Transmission Planning - The Inputs
• Load - forecast, location, timing, peak vs. off-peak
• Generation - size, location, timing, merit order
• Existing system - capacity, equipment ratings, operating constraints
• Planning criteria - bulk system, subtransmission, load supply stations
• Externalities - siting and routing considerations, planning horizons for other stakeholders, other jurisdictions
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Transmission Planning - Project Initiation
• AESO determines need for system expansion or upgrade.
• AESO prepares Need Application and files with Energy and Utilities Board (EUB).
• EUB considers application and makes decision.
• Following receipt of EUB approval AESO “procures” project from a transmission facility owner (TFO).
• TFO prepares and files Facility Application with EUB.
• EUB considers application and makes decision.
• Following receipt of EUB approval TFO proceeds with construction of project.
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Transmission System Development
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AESO Transmission Strategy Objectives
• To define a transmission system development strategy that will enable the timely approval and construction of transmission facilities so as to:
• Provide adequate transmission facilities that will meet defined reliably and performance criteria and provide efficient service
• Facilitate the development of new generation in the system
• Facilitate the competitive wholesale electricity market so as to allow market forces to minimize the overall delivered wholesale cost of electricity to consumers
• Strategy Deliverable: The “Conceptual Plan”
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The Conceptual Plan
• Objectives:
• 20 year outlook for system development
• primary focus on 500 kV development
• Better understanding of the implications of alternative generation and export scenarios on the development of the transmission system
• Preliminary evaluation of the impact on the overall costs of generation and transmission costs of the alternative generation and export scenarios
• 3 generation scenarios - Ft. McMurray, Edmonton area, southern Alberta area
• 3 export scenarios - 0, 1000 and 2000 MW
• 2 load forecast scenarios - expected, high
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Dover
Ellerslie
Genesee
Keep-hills
Edmonton -Wabamun Area
Calgary Area
Ft.McMurray
Sundance
Wabamun
RossdaleClover
Bar
AlbertaMontana
Alberta
Alb
erta
Sas
katc
hew
an
British Columbia
Sheerness
DeWinton
Sarcee Janet
Langdon
Deerland
BattleRiver
Brazeau
McMillan
Charon
Whitefish
MiloWest
Brooks
Metiskow
Red Deer
Sagitawah
LouiseCreek
Mitsue
LittleSmoky
WesleyCreek
Bickerdike
Brooks
Lubicon
Keg River
RainbowLake
Brintnel
Benalto
Lochend
Devon
Peigan
N.Lethbridge
MargueriteLake
Lindale
AESO - Medium Export
Transmission Scenario 1 240 / 500 kV System Overview
Convert Lines to500kV Operation
By 2008
Cordel
Anderson
Dover -Ministik 500kV
#1 & 2 By2008
Genesee -Lochend -Langdon500kV By
2008
Dover -Ministik 500kV
#3 By 2018
Devon -Ministik 500kV
Loop-in By2008
Ministik500
Ruth Lake:Add 240/138Tx By 2014
Add SVCBy 2014
Add SVCBy 2014
Existing 240kV
Existing 500 kV
New 500 kV
Thermal Plant
Thermal Plant - Future
New 240kV From CurrentAESO 10 Yr Plan
Hydro Plant
New 240 kV
ToCranbrook
Ministik -Langdon
500kVBy 2008
EastCalgary
Dover -Brintnel -Wabasca
240kVReconductor
By 2018
Wabasca
Add SVCsBy 2019
Lochend -Sarcee 240kV
By 2008
Dover - RuthLake 240kV #58
ReconductorBy 2008
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North - South Upgrade
1. Convert the south Keephills to Genesee to Ellerslie circuit to 500 kV operation by 2006, estimated cost $32M
2. Build 1st north - south 500 kV cct from Genesee to Langdon by 2009; estimated cost $300 M
3. Acquire right-of-way for 2nd north - south 500 kV cct from Keephills to Langdon; estimated cost $11 M
4. Acquire right-of-way for +/- 500 kV HVDC line from Fort McMurray area to Calgary area; estimated cost $45 M
1
23 4
FM
GN
ELKH
LD
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Southwest Alberta - Staged Development, Triggers and Cost Estimate
Component EstimatedCost
Trigger
Pincher Creek to Peigan240 kV
$40 million Required for existing and new PincherCreek area generation
Peigan to Lethbridge240 kV
$26 million New Pincher Creek area generation
Magrath to Stirling toTempest 138 kV upgrade
$15 million Required for existing load and supplycustomers
Drywood area upgrades $3 million Required for existing load and supplycustomers
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Proposed Development - Southwest Alberta
Plants
Hydro
Thermal
Wind
FutureExisting
240 kV
138 kV
69 kV
Proposed Line
Drywood415S
Yarrow995S
Glenwood229S
Spring Coulee385S
Magrath225S
Taylor'sChute13 MW
Riverbend618S
Lethbridge 674S
Ft. Macleod 15SPeigan
59S
E. Stavely928 S
Stavely349S
To Janet74S
Raymond23 MW
Stirling67S
Tempest403 S
To MiloJunction
Coleman799S
Lundbreck513S
NatalB-1S
111S
Shell Waterton379S
Shell Waterton502S
Warner344S
Castle River239S
40 MW
Cowley Ridge322S
41 MW
OldmanHydro32 MW
Pincher Creek396S
Kettles Hill63 MW
N
53Ft. Macleod
55Glenwood
Lakeview593S
146S
241S
Chin Chute13 MW
Coaldale254S
To Blackie253S
Monarch492S
N. Lethbridge370S
172L
725L
170L
164L
185L
225L
66L
863L
146L
170L
911L
180L
814L
162L
McBride Lake75 MW
Summerview131 MW
Magrath30 MW
Taylor Wind3.4 MW
Irrican Hydro7 MW
Oldman Flats60MW
ToCranbrook
ToLangdon
786L
951L
Soderglen11 MW
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Other Transmission Constraints
Dover
EllerslieGenesee
Keep-hills
Sundance
Wabamun
RossdaleClover
Bar
AlbertaMontana
Alberta
Alb
erta
Sas
katc
hew
an
British Columbia
Sheerness
DeWinton
Sarcee
Janet
Langdon
Deerland
BattleRiver
Brazeau
McMillan
Hart Lake
Whitefish
MiloWest
Brooks
MetiskowRed Deer
Sagitawah
LouiseCreek
Mitsue
LittleSmoky
WesleyCreek
Bickerdike
Vauxhall
Lubicon
Keg River
RainbowLake
Brintnel
Benalto
Beddington
Devon
Peigan
N.Lethbridge
MargueriteLake
Cordel
Anderson
Josephburg
Jenner
EmpressE. Calgary
• To northwest Alberta• Into southeast Alberta, including tie to Sask.• Local Edmonton and Calgary areas• Other regional and local upgrades
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Questions?
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