ABSTRACT
A realistic approach separates the sources along cost-of-extraction lines. In addition, one cannot assume that the figure of consumption remains constant. Adding the deep-mined coal at this ratio leaves roughly 150 years electricity production from coal. There is just enough time to fill the gap with nuclear power and renewable for electricity generation if one does not want to increase the price of electricity well beyond normal inflation rates. The preponderance of oil as an energy carrier is easily explained by the energy density per volume. Hydrogen, the best alternative to the oil- or fuel-based society, does not offer the energy density of oil, even in liquid form. The seriousness of the energy supply situation in the United States has been the subject of detailed studies. It is shown that oil as an energy base will soon be exhausted and that this will cause a downturn in gross national product and a decline in agricultural output.
