oil producing equipment at least one deck for a power plant and will have equipment necessary for electric power distribution application_number US 44351009 A description with reference to fig1 2 3 and 4 a platform 10 according to the invention will consist of a circle of modules 1 each module consisting of at least one of circular column 2 with the same or different size of diameter surrounded by concrete to create a desired outer surface the straight sides 3 4 of the module will have an angle alpha given by the number of modules 1 the platform 10 shall consist of and thus giving the size of the platform the modules will be held together by some fixing means like bolts or similar the internal circular u201c column u201d 5 generated by the modules 1 in the middle of the platform 10 can be either sealed at the bottom and be used for storage of oil gas etc or nothing or completely filled with the water surrounding the platform the modules may be put together in a sealing way so that the central space of the platform can be utilized as desired the production of a module 1 is based on the norwegian patent 162 255 for building bridges submerged in water fresh or sea water the norwegian patent.