NOVELTY - The system has a winch system operatively coupled to tension structure, and is configured for adjusting the length of the tension structure in a controlled fashion, and operative in a first mode for receiving energy from an external source and for raising the one or more suspended weights so converting energy received from an external source to stored potential energy, and operative in a second mode for releasing the raised one or more suspended weights so converting stored potential energy into generated power.    USE - System that is deployed in atmosphere for storing and releasing energy.    ADVANTAGE - The buoyancy needed to provide gravity storage is similar to the buoyancy needed to support photo voltaic (PV) electricity generation, which makes them very compatible for providing a unified solution that delivers a continuous, uninterrupted and reliable supply of low cost electricity from solar energy. In addition to PV power generation and gravity energy storage, because of the benign weather free environment with abundant reliable solar power and clear visibility to space and a horizon exceeding km radius, many synergistic new uses, are enabled and supported by large rigid buoyant tethered platforms floating in the low stratosphere. If small amount of land area is needed, the systems are located very near existing power plants, or existing transmission and distribution networks, which reduce or eliminate the need for new electricity transmission infrastructure. The benefits of suspending an array in the stratosphere are the reliability of the energy source, the higher incident energy density, and the benign stable calm low wind weather free environment that enables permanent tethering.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for storing and releasing energy.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the platform module.    Strut (11)    Cross bracing cable (12)    Top surface (13)    Smaller structural section (14)    Photovoltaic array (15)