Analysis of wind and solar energy potential of coastal island in East Madura (Case study: Gili Iyang island)

The availability of renewable energy such as solar and wind is a determining factor in the conversion of electrical energy in solar cell and wind turbine power plants. The level of availability of renewable energy is a consideration in the orientation of the development of renewable energy plants. The purpose of this study was to determine the potential of renewable energy sources, namely wind, and sun in the Gili Iyang island, Madura. Geographically, Gili Iyang is an island with an area of 9.15 km2 with a typical coastal area located to the east of the island of Java. Data retrieval is done by direct retrieval method by surrounding the entire island. Data retrieval is based on geographic points marked with GPS and using a solar power meter and anemometer instrumentation tools. Data processing techniques are carried out using MATLAB and 3DField. The data processing technique is carried out so that the location of areas with high and low potential for renewable energy sources can be easily identified. The results of the study case region, in the form of spatial data and geographical information system. From the measurement results, the highest potential for renewable energy is found on the south to the west coast with an irradiation level of 1068 W/m2. The highest wind energy potential is on the west to the south coast with an average wind speed of 5.6 m/s. The wind speed is suitable for a wind turbine with capacities below 500 Watts. Based on the measurement results, the standard deviation for wind potential is 1.68 m/s and 233.89 W/m2 for solar irradiation. The findings from this research can be used as a reference for stakeholders, consultants, and contractors to plan the best location for the installation and power grid of wind and solar power plants.