Spatial temporal analysis for potential wave energy resources in Indonesia

• Published in: IOP conference series. Earth and environmental science 2021-11, Vol.893 (1), p.12050
• Main Authors: Habibie, M N, Marfai, M A, Harsa, H, Linarka, U A
• Format: Article
• Language: English
• Subjects: Carbon dioxide; Climate change; Coefficient of variation; Data simulation; Electric power distribution; Energy resources; Energy sources; Exploitation; Global warming; Marine resources; Monsoons; Seasonal variations; Spatial analysis; Spatial discrimination; Spatial resolution; Temporal distribution; Wave energy; Wave power; Wind
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/893/1/012050

Future energy becomes a concern all over the country. The fossil energy resources are decreasing now, and the exploitation these resources leave behind environmental problems. It was increasing the gas emission of CO 2 and affected global warming. Renewable and environmentally friendly energy resource is the right choice to solve the problem. Wave power is one of the marine resources that have an advantage in hight density and continuity. This research aims to investigate the spatial-temporal distribution of wave power potency. This study location between 90°E – 150°E; 15°N – 15°S. We used a hindcast data simulation of WAVEWATCH-III with 0.125° (~14 km) spatial resolution and six-hourly data for 25 years (1991-2015). We determine the potential wave power resources by considering the wave flux, Presence of Exceedance (PE), Coefficient of Variation (Cv), Monthly Variability Index (MV), and Seasonal Variability Index (SV). The result shows that in the open sea, such as the Indian Ocean and Pacific Ocean, contains higher wave power density. The level of stability shows that this area is more stable than the inner sea. The power density changes periodically conducted with the monsoonal cycle. The highest energy flux in the Indian Ocean achieved when Australian monsoon and lowest when Asian monsoon, whereas in the Pacific Ocean, the peak of power density reaches when Asian monsoon onset and the lowest in June-July-August. The most stable level coherent with the highest power density, and the lowest level is in the transition period. Based on this analysis, the most potential areas for wave power development are in Enggano, Lampung, Banten, West Java, Central Java, DIY, East Java until Bali.