NOVELTY - The device has an inflation tube connected with two distribution pipes and a floating air bag. A pressure relief valve is connected with a top of the floating air bag. A linkage device is connected with two floating air bag boxes and provided with a connection rope and multiple fix pulleys. The connecting rope is connected with the floating air bag boxes. Two liquid storage cylinders are connected with the pulleys. A power generation device is connected with the connection rope and a buoyancy group (30) and provided with a storage battery.    USE - Floating gas-type power device for generating electricity. Uses include but are not limited to a store, a parking lot, a gas station and an industrial park.    ADVANTAGE - The device utilizes a mobile object generated by gravity through gravity recovery of the high pressure gas to be converted after storage, where the buoyancy is generated by the kinetic energy through over a gear driven generator and the kinetic energy is converted into electrical energy without affecting geography and climate effects, and the power generation process does not produce hazardous substances, so that the environmentally friendly green energy floating elements are combined with less restrictive conditions and consistent human social model to build the city and development, manufacturing and assembly costs are reduced and the elements are assembled without higher technology and maintenance. The device can significantly reduce potential risk of carbon emissions and nuclear power to avoid the dangers and expand the greenhouse effect, and utilizes a floating gas power unit for generating electricity in case of an emergency or power outage as an emergency backup power equipment or fire water so as to provide low compliance with environmental green energy, sustainable power generation/storage of electricity and reduce cost of high applicability floating gas for electricity generation power unit.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a floating gas-type power device.    Bottom base (11)    Cover plate (14)    Side frame (24)    Bottom plate (25)    Buoyancy group (30)