NOVELTY - The system (100) has a power generating system comprising a first electric power production system that produces power based on energy collected or harvested from renewable energy sources. A control system controls activation or connection of renewable energy source collecting or handling modules, where the renewable energy source collecting or handling modules are added and removed such that the control system is modified to have desired combination of the modules, and constant amount of hydrogen gas is produced for driving a second electric power production system.    USE - Water-based modular power plant system for use in an environment. Uses include but are not limited to a coastal water environment, an ocean environment, a river environment, a lake environment and a basin environment.    ADVANTAGE - The system allows a light system to be incorporated on a top of the outer ring of the wave converter module so as to prevent sea vessels from colliding with the system and incorporate an acoustic warning system, which is automatically activated during misty weather conditions. The system allows rotor blades to be designed with double double-curved surfaces on the deflection side and on the power side so as to obtain maximum power from the water flow down streams on the power side and to cause minimum counterforce on the deflection side during counter flow movement such that the blade is designed to prevent cavitation so as to secure maximum uptake of flow power of the blades to be automatically self-adjusting by a self-adjusting mechanism activated by force created from the blade that moves on the counter flow side of the rotor in a flexible and efficient manner.    DETAILED DESCRIPTION - The renewable energy source collecting or handling modules are a wind energy handling or collecting module (80), a surface stream energy collecting module (90) and a deep water energy collecting or handling module (115A).    DESCRIPTION OF DRAWING(S) - The drawing shows a side perspective view of a water-based modular power plant system.    Wind energy handling or collecting module (80)    Rotating ring (83)    Upper machine house module (85u)    Surface stream energy collecting module (90)    Water-based modular power plant system (100)    Deep water energy collecting or handling module (115A)