In systems where OTEC will be applied, production interruption is not experienced, and losses such as production loss, production decrease, and productivity losses are eliminated in the application. OTEC utilizes the water to bring the inlet air from the dry bulb temperature to the wet bulb temperature with its software based on calculation with a specific algorithm according to the psychrometric diagram. OTEC ensures that the maximum energy is saved by bringing the intake air to the design conditions based on the psychrometric diagram and calculation under the current geographical location and climate conditions in the Power Plants. OTEC, water, energy and maintenance expenses do not exceed 10% of savings. OTEC is an energy efficiency boosting system that provides a capacity increase and energy saving equivalent to air source efficiency, ground source efficiency in comfort or in process cooling systems. With OTEC, the pressure losses are not experienced in the inlet air, because the water is sprayed as pulverized, a high amount of water is not consumed, and there is no need for a treatment plant because there is no wastewater. OTEC extends the turbine filter life in power plants and maintenance life in cooling systems by reducing dust pollution.