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by Arlie M. Skov P.E. CCCOGP Meeting The Grand, Long Beach, CA September 17, 2008. U.S. Energy Needs: Fossil Fuels or Renewables ?. Sources of Energy. Primary. Fossil fuels : Coal, oil, gas (stored biomass) Solar : Sunlight, wind, hydropower, biomass,
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by Arlie M. Skov P.E.CCCOGP MeetingThe Grand, Long Beach, CASeptember 17, 2008 U.S. Energy Needs: Fossil Fuels or Renewables?
Sources of Energy Primary • Fossil fuels: Coal, oil, gas (stored biomass) • Solar: Sunlight, wind, hydropower, biomass, • Nuclear: Geothermal, fission, fusion • Celestial motion: Tides • “Dark Energy”: 72% of universe
Sources of Energy Secondary or Converted (With Losses) • Electricity • Hydrogen • Ethanol, biodiesel, etc. • Muscle power (biomass)
U.S. Energy Use: 100 Quads/Year and Growing at One Quad/Year One Quad is One Quadrillion BTU’s (1 x 1015) • Or 160 mn bbls oil (440,000 BOPD) • Or 50 mn tons of coal (3000 trainloads) • Or 12 bn gal. of ethanol (30 mn acres, half of all corn) • Or 37 new 1000 MW nuclear power plants • Or 50 mn cords of wood (annual new growth of 85 mn acres, 1/3 all US forest land) • Or 150,000 1 MW wind turbines
U.S. Energy, Fuel, Farm Workers 1650 to 2000 MMBTU per Capita 360 100 340 230 100 Energy Use, Fuels, Workers
U.S. Energy Use – 2007 By Fuel, By Sector, in Quads
Rate of Change in U.S. Energy Use By Source, 1997-07
Rate of Change in U.S. Use of Renewable Energy By Source, 1997-07
Oil Prices, Consumption, and the Economy A Brief History
Oil Prices and the Economy • Duration (months) X Depth (peak GDP drop, %) • 1929-33 = 1420
Summary: Status of U.S. Energy Use Growth and Problems • U.S. economy grew using cheap energy • Biggest uses and growth rates • Electric power, 41 Q, 15% • Transportation, 29 Q, 16% • Both coal and oil produce CO2 • CO2 capture and sequestration?
What Must Be Done Electric Power • Build new nuclear power plants, recycle spent fuel and alleviate regulatory political restrictions • Use CO2 capture & sequestration for coal-fired plants • Fully develop low-cost intermittent sources: Wind, solar, tides, etc. • Conservation, automatic with price? • Build more dams with pumped storage
What Must Be Done Transportation • Liquid fuel for autos, trucks, tractors, trains, planes and boats is indispensable • Must develop all U.S. oil and gas resources, onshore and offshore • Develop biofuels as competing uses permit • Build Fischer-Tropsch plants with CO2 capture • Longer term: Computer control of traffic, electric power and batteries for land transport
Problems with Wind Power Intermittency and Predictability, (E=mv3) Germany, 2004: Wind Power from 7000 Wind Turbines, % of Daily Peak Grid Load, From 0.2-38%!
History of U.S. Nuclear Power Number of New Units Annually & Years to Build
Impediments to Rapid Development of New U.S. Energy Sources • Excess regulation • Proliferation of NGO’s • Lawsuits • A pampered public • Obsequious politicians pandering to a pampered public and to NGO’s
“Four years to design and build a new Chevrolet? *#}! We won World War II in less time than that!” - Ross Perot (as member of GM Board)
U.S. Energy Needs: Fossil Fuels or Renewables? • We need both… and quickly. • Alleviate or eliminate barriers to action: legislative, judicial, environmental, partisan, political bickering, NIMBY & BANANA • Quickly develop comprehensive energy plan – not piecemeal, partial, political, or slowly • Implement plan quickly and decisively, before the world economy and ours collapses completely
What About the Federal Energy Bill? Signed December 19, 2007 • Mandates 35 mpg for autos (including SUV’s) by 2020, up from 27.5 • Mandates 36 bn gal of biofuels per year by 2022, w/ max of 15 bn corn-based ethanol • Today’s use: 140 bn gal gasoline and 6 bn gal biofuels “Only this and nothing more.” The Raven
A Brief History of CAFE Corporate Average Fuel Economy • Enacted 1975 • Autos standard set at 27.5 MPG • Light trucks (pickups, vans, SUV’s) exempt • Auto mpg 1975-05: up 64% to 22.9 MPG • Light trucks mpg up 54% to 16.2 MPG • Light trucks, as % of automotive fleet, up from 15% to 41%
“CAFÉ is like trying to fight obesity by requiring tailors to make only small size clothing.” - Bob Lutz, Chairman, GM
Correlation Function, EU.S. Energy Use E = Q/P*G(Q=quads, P=population, G=GDP in 1996$) Ln E
Lessons from Early U.S. History • Prior to 1850, used only “renewable” fuels • From 1800 to 1925, % of US work force on farms dropped from 86% to 19% • Concurrently, “renewable” fuel use dropped from 100% to 10% • Total fuel use jumped 45-fold, from 0.5 quads to 22.4.
by Arlie M. Skov Cosmopolitan Club of Santa BarbaraElks Lodge, Goleta, CAJuly 17, 2008 U.S. Energy Needs: Fossil Fuels or Renewables?