The future of energy is found in two great nuclear sources: Fusion overhead in the Sun, and the residual heat of fission in the Earth core below us.
The Oceans have enough volume to cover the entire planet’s surface to a depth over a mile above present sea level. The ocean’s are a highly efficient collector of solar heat and energy.
Yet a far greater source of power is available in each gallon of sea water. The heavy isotopes of water combine to form helium, converting mass to vast amounts of energy.
Fusion of deuterium with tritium creatinghelium-4, freeing a neutron, and releasing 17.59 MeV of energy, as an appropriate amount of mass converting to the kinetic energy of the products, in agreement with E = Δmc2
This gives each gallon of seawater the energy equivalent of 300 gallons of gasoline.
From Livermore Lab: