ESTIMATION OF HYDROPOWER POTENTIAL ENERGY USING GIS AND SWAT HYDROLOGIC MODEL IN WESTERN VISAYAS

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Year:
2016
Type of Publication:
Proceedings
Keywords:
Renewable Energy, Synthetic Aperture Radar and Digital Elevation Model , Geographic Information System , Soil and Water Assessment Tool , hydropower
Authors:
Garcia, Julius Jason S.; de la Serna, Alexis Marie L.; Fesalbon, Rowane May A.; Silapan, Judith R.
Abstract:
The Philippines is abundantly endowed with water resources. However, electricity shortage is one of the biggest problems the country is currently facing. In order to help address this problem, assessment and identification of potential sites for hydropower energy is needed. Since the Western Visayas is one of the water resources region in the country, it is considered to have high potential for hydropower. Hence, hydropower resource assessment and site suitability analyses were conducted in this region. In order to estimate and assess the hydropower potential of the Western Visayas region, geospatial techniques and input datasets were used. The theoretical potential of hydropower was computed using the ArcSWAT (Soil and Water Assessment Tool) hydrologic model in ArcGIS. This model generates the flow values using different input datasets like river basin boundaries, soil dataset, Synthetic Aperture Radar - Digital Elevation Model (SAR-DEM) raster, weather datasets, etc. Then, terrain analysis algorithm using Python was used to generate the head or difference in elevation. From the two values (flow and head) obtained hydropower potential with detailed classification for mapping can be computed and identified. These results can be used to select the best areas for setting up hydropower plants in the Western Visayas Region. Moreover, this hydropower potential assessment can be used by planners and developers for future development of the region
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