Assessment of Small-Scale Offshore Wave Energy Potential Near Enggano Island for Local Sustainability and Energy Independence

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Nafisa Nandalianadhira, Mochammad Fathurridho Hermanto, Rebda Ari Saputra

2026 IOP Conference Series: Earth and Environmental Science Vol. 1585 Issue 1 Conference paper Cited by 0 Quartile

Abstract

Indonesia's current energy system is still highly dependent on fossil fuels such as coal and petroleum, which contributes to environmental degradation and energy security risks. This study investigates the potential deployment of wave power systems around Enggano Island, Bengkulu, as an alternative sustainable alternative. Using Delft3D-WAVE modeling with ECMWF-ERA5 reanalysis data from 2015 to 2024, parameters such as significant wave height, peak period, and wave direction were analyzed to estimate theoretical and practical energy potential. The results show that the theoretical wave energy potential ranges between 0.12 and 0.88 GW, while the practical potential lies between 0.10 and 0.71 GW. Six types of wave energy converters Pelamis, MRC1000, AquaBuOY, Wave Swing, Offshore EWC, and SEADOG were assessed, with SEADOG identified as the most suitable technology for this location, achieving an average capacity of 11.52 MW. To fulfill the local demand, approximately 44 SEADOG units would be sufficient, producing around 506 MW of installed power. These findings emphasize the importance of Enggano Island in advancing Indonesia's shift toward renewable energy independence. © Published under licence by IOP Publishing Ltd.

Affiliations

Department of Ocean Engineering, Institut Teknologi Sumatera, 35365, Indonesia; Student of Department of Ocean Engineering, Institut Teknologi Sumatera, 35365, Indonesia