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energy sources and uses
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T. Ferguson, University of Minnesota, Duluth, 2008.
Session 2 – Energy Sources and Uses
Topics• Text, Chapter 1• Sustainable, renewable definitions• Energy definitions and relationships• Energy sources and conversions• US Energy supply and usage• Contribution of renewables• US electrical sources and uses• Environmental impacts
T. Ferguson, University of Minnesota, Duluth, 2008.
Definitions
• Sustainable Energy
• Renewable Energy
• Non-renewable Energy
T. Ferguson, University of Minnesota, Duluth, 2008.
Definitions and Relationships
• Discussion of fuels and typical units:– Food (kg-cal)– Gasoline (btus)– Natural gas (btus)– Electricity (kwh)– Solar radiation (watts)– Cosmic Radiation (electron volts)
• Conversions• Absolute energy content (eq. 1-14)
T. Ferguson, University of Minnesota, Duluth, 2008.
U.S. Energy Supply - 2007
T. Ferguson, University of Minnesota, Duluth, 2008.
US Energy Supply - 2006
T. Ferguson, University of Minnesota, Duluth, 2008.
Renewables - 2007
T. Ferguson, University of Minnesota, Duluth, 2008.
Renewables - 2006
T. Ferguson, University of Minnesota, Duluth, 2008.
Potential U.S. Electric Energy Resource Concentrations
T. Ferguson, University of Minnesota, Duluth, 2008.
Sources and Uses of Electricity - 2007
T. Ferguson, University of Minnesota, Duluth, 2008.
Sources and Uses of Electricity, 2006
T. Ferguson, University of Minnesota, Duluth, 2008.
Environmental ImpactsAll Technologies Have Adverse Impacts
• Extraction• Refining• Transportation• Operations• Decommissioning
T. Ferguson, University of Minnesota, Duluth, 2008.
Atmospheric Impacts
Source: EIA
CO2, in million metric tons
