OUTLINE General considerations 2 U.S. energy consumption by sectors.& 2 Fossil fuels 4 Oil 4 Non-conventional oil 5 Non-conventional natural gas 5 Coal 5 Nuclear power 5 Renewable energy 7 Energy storage and transportation fuel 9 Speculative 10 General considerations All the energy we consume is generated by using the four fundamental interactions of nature: gravity, electromagnetism, the weak nuclear force and the strong nuclear force to create work. Fission energy and fusion energy are generated by electromagnetism and the strong nuclear force. …showed first 75 words of 4559 total…

…showed last 75 words of 4559 total…asteroid mining, from the moon (see helium-3), and from a Dyson sphere though the latter options are currently far beyond the capability of current human technological mastery. Even more speculatively and therefore in the realm of near pure fantasy; the accretion disc of a black hole can convert about 50% of the mass energy of an object into radiation, as opposed to nuclear fusion which can only convert a few percent of the mass to energy.