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Electric Transmission System Development in Alberta

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8,570 MW system peak. over 130 generating units. 10,515 MW internal capacity net to grid ... Load - forecast, location, timing, peak vs. off-peak ... – PowerPoint PPT presentation

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Title: Electric Transmission System Development in Alberta


1
Electric Transmission System Development in
Alberta
  • Neil J. Brausen, P. Eng., Director System
    Planning
  • APEGGA Calgary Branch Luncheon
  • March 17, 2004

2
Electric Transmission System Development in
Alberta
  • Industry Background and Structure
  • AESO Core Business Functions
  • Transmission Planning Process
  • Transmission System Development
  • Questions

3
Industry Background and Structure
4
Albertas 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
5
Albertas Electric Market
TransAlta/ATCO/EP
Existing Generating Units
New Generation (IPPs)
Balancing Pool
Marketer
Market
Transmission
Transmission Facility Owners
Distribution Wire Service Provider
Retailer
Retailer
F
F
H
6
Industry Model Post-Restructuring
Vertically Integrated Utility
Functional Separation
competitive forces
Generation
natural monopoly
Transmission
natural monopoly
Distribution
competitive forces
Retail
7
AESO Core Business Functions
8
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

9
Industry Structure (June 2003)
Electric Utilities Act
Minister of Energy Appoints Board members , MSA
EUB Chair
Balancing Pool
Market Surveillance Administrator (MSA)
Alberta Electric System Operator
Alberta Energy Utilities Board (EUB) Regulates
AESOs Transmission business
Wholesale Energy Market
Load Settlement
Transmission
Real-time Alberta Electric System Operator
10
Transmission Planning Process
11
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).

12
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

13
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.

14
Transmission System Development
15
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

16
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

17
(No Transcript)
18
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

FM
EL
KH
1
GN
3
4
2
LD
19
Southwest Alberta - Staged Development, Triggers
and Cost Estimate
20
Proposed Development - Southwest Alberta
21
Other Transmission Constraints
  • To northwest Alberta
  • Into southeast Alberta, including tie to
    Sask.
  • Local Edmonton and Calgary areas
  • Other regional and local upgrades

22
Questions?
23
Contact Us
Current Prices and Market Statistics Historical
Reports News, Announcements Market and
Transmission Access www.aeso.ca
24
(No Transcript)
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