Development of the Electrical Power System in the Northwest

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Development of the Electrical Power System in the
Northwest

• Dependence on hydropower - Atlas p. 101
• Early non-federal projects - Skagit, Elwha
• Federal programs Columbia/Snake R.
• rural electrification
• job creation
• Columbia Basin Project
• Bonneville Power Act - 1937
• role of BPA vs. BuRec or COE
• the BPA preference clause - (1) public
  utilities, (2) private utilities, (3) DSIs

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Public
Investor Owned Systems
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Hydro System Principles Development

• Annual water runoff probabilities
• Critical water
• Storage dams w/winter peak snowpack
• Canadian Storage Agreement
• Demand forecasts - PNUCC, BPA
• BC Analysis Congressional Support 1940s
  through 1960s
• Role of the Aluminum Industry DSIs.

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An Historic Drawing of Dam Elevations on the
Columbia / Snake
Hanford Reach
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Source Hyde, p. 10
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1994 Firm Power Demand
Source NWPPC 4th Electric Power Plan, Appendix D
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Firm Non-Firm Electricity Sales
Source NWPPC 4th Electric Power Plan, Appendix D
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Seasonal Load Patterns, 1995
Source NWPPC 4th Electric Power Plan, Appendix D
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Source NWPCC 6th Northwest Power Plan, Appendix C
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Source NWPCC 6th Power Plan, Appendix C
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Source NPPC 5th Northwest Electric Power and
Conservation Plan, Demand Forecast Appendix
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Typical Winter and Summer Weekday Load Shapes
Source NWPPC 4th Electric Power Plan, Appendix D
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Evolution of Planning

• PNUCC method of forecasting
• WEC lawsuit
• City Light Energy 1990 Study
• BPA studies vs. NRDC forecast
• Collapse of WPPSS projects - bond defaults
  in the wake of new forecasts
• Congress creates the NWPPC (Now NPCC)
• NPCC reliance on conservation

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The Hydro-Thermal Program

• Exhaustion of hydro sites by the late 1960s
• The Northwest-Southwest Intertie
• Concept of the hydro-thermal program
• Washington Public Power Supply System 0r
  WPPSS
• BPA Notice of Insufficiency
• Impact of hydro-thermal system on river flows
  fisheries/environmentalist lawsuits

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BPA vs. NRDC Forecast
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The Intertie Connections Were Justified On
Grounds Related to Seasonal Complementary Demand
s in California And the Northwest Winter space
heating Demands in the PNW, Summer air
conditioning Demands in California
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Source Draft 6th PWPCC Power Plan, Appendix C
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Source NWPCC 6th Northwest Power Plan, Appendix
C
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Forecast Demand Growth Compared to Long-term
Historical Trends
Source NWPPC Draft 4th Electric Power Plan,
Appendix D
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Source PWPCC Draft 6th Power Plan, Appendix C
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Source NWPCC 6th Northwest Power Plan, Chapter 1
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Source NWPCC 6th Northwest Power Plan, Chapter 1
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Source NWPCC 6th Northwest Power Plan
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Source NWPCC 6th Northwest Power Plan, Chapter 3
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Source NWPCC Draft 6th Northwest Power Plan,
Chapter 3
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Source NWPCC 6th Northwest Power Plan, Chapter 4
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Source NWPCC 6th Northwest Power Plan
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Source NWPCC 6th Northwest Power Plan, Chapter 1
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RPS Renewable Resource Portfolio Standard
Source NWPCC 6th Northwest Power Plan, Chapter 2
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An updated electricity demand forecast from PNPCC
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This figure is from the NWPCC midterm
assessment of the 6th Plan Much wind power
is exported to California NWPCC expects slower
growth in these exports as photovoltaics
are used to meet the California renewable
resource requirement
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Other Issues

• Firm versus Interruptible Power
• Traditional long-term sales contracts versus
  spot markets
• Alternative energy sources
• wind, solar, wood
• Deregulation multi-source competition
• NPCC options approach
• Fish versus power

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Old Slides

• The following slides are not for use in class
• They are kept for reference purposes only

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Source NPPC 5th Northwest Electric Power and
Conservation Plan, Demand Forecast Appendix
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