THE POWER OF POSSIBILITY Electric Transmission System Development in Alberta Neil J. Brausen, P....

THE POWER OF POSSIBILITY

Electric Transmission System Development in AlbertaNeil 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

• Transmission Planning Process

• Transmission System Development

• Questions


Industry Background and Structure


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


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)


Industry Model Post-Restructuring

competitiveforces

competitiveforces

naturalmonopoly

Generation

Transmission

Distribution

FunctionalSeparation

Vertically Integrated Utility

naturalmonopoly

Retail


AESO Core Business Functions


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


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)


Transmission Planning Process


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).


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


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.


Transmission System Development


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”


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


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


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


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


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


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


Questions?


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THE POWER OF POSSIBILITY Electric Transmission System Development in Alberta Neil J. Brausen, P....

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