Science Target Conference Systems, Ajman 4th International Environment Conference 2016

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Assessing the Renewable Energy Technical Potential in Sumba, Indonesia: A spatial analysis
Dody Setiawan, Jiunn-Chi Wu

Last modified: 2015-11-25


Sumba Iconic Island project was established to bring Sumba as a role model in rural areas development using 100% renewable energy. Previous reports show significant potentials for renewable energy resources in Sumba.

This study is aimed to identify renewable energy technical potential in Kahaungu Eti sub-district using spatial analysis. Solar energy potential was estimated using Area Solar Radiation tool in ArcGIS. While wind map data and Weibull parameters were provided by NREL Wind Resource Assessment Program. Run-off-river hydroelectricity potential was calculated using GIS approach, including head screening and river discharge estimation. Geographical, topographical and technical constraints are considered in estimating the potentials by overlaying landuse map, slope map and adjusting minimum continuous areas.

The results show that solar energy potentials vary from 2.44 to 5.09 kWh/m2/day. The highest solar radiation are found in the middle part of Kahaungu Eti. The potentials of wind energy are only found in Kamanggih and Kambata Bundung with wind speed above 5 m/s.  Micro hydroelectricity are found in all villages except Kataka with capacity range from 24kW up to 122kW. By using this spatially-enable information, dispersedly-distributed local demand can be matched with available RE potential for further analysis such as supply-demand and investment scenarios.