NOVELTY - The system for generating energy using a self sustained energy model having gravitation and upthrust forces comprises: a deep column of high density medium i.e. water or high density fluid produced or naturally available; and low density pulling objects (103) to make a floating well (104). The pulling objects have a density that is less than that of the deep column. The depth of the floating well depends on an amount of the energy to be generated. The pulling objects have specified size and shape. The amount of the energy to be generated is increased when the depth of the well is increased.    USE - The system is useful for generating energy (claimed) such as electric power.    ADVANTAGE - The system continuously and economically generates the energy without pollution, heat generation and the need of additional energy resources, and can be easily installed at buildings and ocean or sea related areas.    DETAILED DESCRIPTION - The system for generating energy using a self sustained energy model having gravitation and upthrust forces comprises: a deep column of high density medium i.e. water or high density fluid produced or naturally available; and low density pulling objects (103) to make a floating well (104). The pulling objects have a density that is less than that of the deep column. The depth of the floating well depends on an amount of the energy to be generated. The pulling objects have specified size and shape. The energy is harnessed by: the gravitation force due to a downward movement of the pulling objects; and the upthrust force due to a density difference in the pulling objects. The amount of the energy to be generated is increased when the depth of the well is increased. The system further comprises a conveyer belt system to collect the generated energy.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a system for generating energy.    Deep water body level (101)    Distance from bottom of deep water body to floating well (102)    Pulling objects (103)    Floating well (104)    Distance between the deep water body and upper part of floating well. (107)