Zero energy

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Zero energy may refer to:

  • A zero energy building (ZEB), a building's use with zero net energy consumption and zero carbon emissions
  • Zero-Net-Energy USA Federal Buildings President Obama has ordered that 15% of U.S. Federal buildings be zero-net-energy by 2015 and 100% of all new buildings by 2030
  • Zero-energy universe, a concept that states that the total amount of energy in the Universe is exactly zero
  • Zero-point energy, the lowest possible energy that a quantum mechanical physical system may have