DOI: https://doi.org/10.46632/jemm/8/2/3 Copyright@ 2022 REST Publisher 76 REST Journal on Emerging Trends in Modelling and Manufacturing Vol: 8(2), 2022 REST Publisher; ISSN: 2455-4537 Website: http://restpublisher.com/journals/jemm/ Evaluation of Marine Currents Energy Plant Using DETMAL MCDM Method *Kurinjimalar Ramu, M. Ramachandran, Malarvizhi Mani REST Labs, Kaveripattinam, Krishnagiri, Tamil Nadu, India. *Corresponding author Email: kurinjimalar@restlabs.in Abstract. The world has an increasing demand for energy; Natural building blocks include air, sunlight, hydrogen and water As a result of changes in kinetic energy, Renewable energy sources Directed countries to use This orientation focuses on technology, creativity, research, improved development and compatibility. As research into renewable energy production continues to grow, methods are being developed to mitigate the harmful effects of nature. This study is about the problem with the site selection where the first marine power plant is planned to be set up. The DEMATEL approach collects collective expertise to capture causal relationships between strategic criteria. This model is especially sensible and can be useful for visualizing the shape of complex causal relationships with measurements or diagrams. This illustration gives a vague DEMATEL model beneath the panel choice to solve the Power Area choice trouble, in which opinions of diverse alternatives underneath specific subjective houses and all residence outstanding weights are anticipated in linguistic values denoted by means of ambiguous numbers. To make a few compatibility with the linguistic exams of subjective attributes, the target attributes are transformed into dimensionless symbols. Installation costs (C1), Maintenance costs (C2), Impacts on maritime transport (C3), Impacts on water quality (C4), Impacts on marine life (C5), Seismic risk (C6), Water velocity (C7) and Proximity to town(C8) is taken for evaluations parameters. Since the DEMATEL method is used, the alternatives are the same parameter. From this analysis DEMATEL method is the best solution. Determines the short distance and a long way from the negative-optimal solution, but the comparison of these distances was not considered significant. It seems from the result that Impacts on maritime transport is got the first rank whereas Impacts on marine life has the lowest rank. 1. Introduction Ocean energy is ocean waves, tides, salinity and represents the energy caused by variations in ocean temperature. Homes use some of this energy; to generate electricity for transportation and businesses. The term ocean energy includes wave energy; it derives from the energy of surface waves and tidal energy, the kinetic energy of large bodies of moving water. Offshore wind farms are a form of ocean energy, because even when wind turbines are placed over water, wind energy is derived from the wind. Oceans have enormous potential, and they are more populous, closer to many if not more. Ocean energy is a significant amount worldwide and it has the potential to provide new renewable energy. Temperature, wind, salinity, bathymetry Strong ocean currents form from a combination of wind and Earth's rotation. Sun acts as prime mover, Causes wind and temperature variations. Current speed without any change in direction and since there are only minor fluctuations in the current location, Ocean currents are like turbines Might be the best place to use energy extraction devices. Ocean currents influence climate in many parts of deciding the world plays an important role. Ocean currents on the effects of removal While little is known, Effects of current energy removal on remote environments May be a significant environmental concern. Regular with blade strike, sea creature problem and sound effects Turbine problems still exist; however, it uses ocean currents for migratory purposes, these can be enlarged by various marine organisms. Locations can also be coastal; therefore the electromagnetic emission affects the marine environment Long power cables are required. DEMATEL Specific cause to be used, decision making based on perceived and distinct techniques All Classical DEMATEL Studies. According to the specific software of the DEMATEL approach, three of the modern-day classical DEMATEL studies Can be categorized into lessons: first kind Between elements or standards Is to make clean relationships; The 2nd type, of causal relationships and the connection amongst them the fundamental factors in terms of duration Identification; The 1/three kind, of criteria of interconnectedness and effect Criteria with the aid of analyzing portions Is to decide weights. The talents of the DEMATEL method approach have ended in its extensive utility in diverse studies fields. To the first-rate of our understanding, however, there may be no look at inside the literature that has used this approach within the context of social media dependency and the related predictors. With the hierarchical system established, it is essential to recognize the way to obtain IDR metrics to examine key elements inside the original DEMATEL. The IDR matrix, which includes degrees of direct impact on all paired factors, is offered with the aid of DEMATEL professionals ranging from zero-four by way of definition. Indirect effects between factors that don't want to be determined in DEMATEL are taken into consideration to be not often given as a likely motive for the violation of subjective cognitive skills. As a result, it's far reasonable to make judgments about relationships which have direct implications for hierarchical DEMATEL. Regular DEMATEL some of the countless series of fashionable effects the use of Circumstances do no longer merge. Infinite this is a sufficient condition for the collection to merge Identified on paper. Based on such a sufficient situation, we proposed a new version of DEMATEL, which ensures the convergence of the limitless series. DEMATEL to identify the cause-effect chain elements of a complex system is considered a better method. It is an assessment of interrelationships