During with degrade fossil energysources and escalated energy requisition in Indonesia, the needfulness foralternative energy sources is invitable. Further unceasing issue of globalwarming and polution which are caused by petroleum and coal fuel.
Moreover thenew technology of renewable energy must be founded by reseacher. In this eramany resources of renewable energy can be explored, one of several is OceanEnergy(Xie & Wang, 2017). Energy powerbased on ocean have many kind of energy power plant convertion, such as tidalenergy, sea curent energy, ocean thermal energy and wave energy. According withpotential energy resources in Indonesia, wave energy is chosen power plant toapplied in Indonesia territory. On the other hand, wave energy has a simpleinstalation, there is called an oscillating water colomn (OWC) method. As generally know Indonesia is the greates archipalago country in the world, which have more than 15 000 islands and total lengh of coastline more than 95 000 km.
The nation that the people depend heavily on the sea is highly potential ocean energy resources convered in electrical power. Two-thirds Indonesia is sea, which has an average wave hight potential of 3 meters. According several researcher raws of waves with 2 meter and 3 meter high equals the power of 39 kw per meter wavelength, that signifies its potential to generate enormous wave energy. Especially in the coastline is directly adjacent to the ocean as sush as southern coastal areas of Java island and west side of Sumatra island. The oceans are almost always movement that appoints potential sustainable energy resources.
Oscillatingwater coulmn is one kinds of several wave energy converter system. OWC has manyadventages such as no harm to marins life, can work irrespective of low or hightidal, ones installed just needs little atention and Since air is a flowing material, there are not manycritical components required. Furthermore, the prinsipal systemworks are exploit of compressed and decompressed air in the chambe by wateroscillating. The air flowed from inside the column to outside when water levelincrease and they flowed from enviroment into the chamber when water level downthat they used to rotate wells turbine.
In generally OWCs, the air alternatelyflows from the column to the enviroment and turn back, although in certain constructthe flow is in closed system. The turbines are self-adjustment, such as theirrotation direction remains unchanged irrespective of the direction of the airflow(Lehmann, Karimpour, Goudey, Jacobson, & Alam,2017). The turbine well is coupled an electricalgenerator.Insummary, Indonesia has highly potential in energy resources and OWC is a technology that applicable and can be made alternative energy to replace fossilenergy.