An Analysis of Energy Harvesting System for Ocean Data Acquisition System (ODAS) Buoy

The threat to coral reefs in the ocean and coastal areas is growing. The main thing that threatens coral reefs is weather changes and human activities. There are several methods to monitor the coral reef status, one of the methods is by using Ocean Data Acquisition System (ODAS) Buoys. The long-term environmental anomalies study will have required lots of energy due to the usage of sensors and devices. The potential energy of solar and wind to generate electricity for use to extend the life of the buoy used for the duration of the monitoring possible for a day, a week, or a year without having to come to change the existing energy supply on the buoy. Hence the solar wind hybrid system is analyzed using Matlab to see how far the solar wind hybrid can produce the energy. Solar irradiation weather data and wind speed are taken from NASA power database for several locations. The result acquired were compared to the calculated data. From the analysis, the result of the calculation indicates that the selected areas produce high energy which can accommodate the amount of burden demanded. While the results obtained from the simulation shows that the energy produced is far different from the energy generated by the equation calculation. This matter may be caused by several factors that exist in the simulation parameter, this cause by the non-matching with the equation used and the wind speed in the location recoded is not strong enough to move the wind turbine.