Buoyancy is an artifact of gravity that moves mass up away from the center of the earth in a fluid whenever the specific gravity of the object is less than the surrounding fluid. Buoyant Force is calculable. Gravitational Potential Energy is calculated by the formula: mgh Is Buoyant Potential Energy calculated mg'h? Here is how I have calculated it so far; mass = 100,000 kg height or depth = 100 meters g' = 1 - (1000 / 1028) = 1 - 0.97276265 = 0.02723735 (The density of the solid object is 1,000 kg/m. The density of the fluid is 1,028 kg/m) By this calculation the Buoyant Potential Energy would be 272,373.54 Joules Is this correct? Could it be improved on?