Indonesia Small Hydropower Planning


Indonesia Small Hydropower Planning





Indonesia’s Electricity Utility (PLN) and World Bank








In 2013 GESTO was awarded a 4 year Framework Contract with the World Bank Group (WBG) for the Energy Sector Management Assistance Program (ESMAP) initiative “Small Hydropower Resource Data and Mapping Services”, establishing it as an eligible vendor for the WBG and one of the only three worldwide companies able to do so. Following this, Gesto has been granted the initiative “Small Hydropower Mapping and Improved Geospatial Electrification Planning in Indonesia” and is currently working with the local Indonesian utility PLN on the implementation of the project.




The main objectives of the “Indonesia Small Hydropower Planning” project were data collection and development of the National Small Hydro Resource Database, with review and validation of the mapping of small hydro in NTT, Maluku, Maluku Utara and Sulawesi. Moreover, it comprises assistance on the inclusion of some of the identified projects in the electrification plans.




The project consists of two activities:


Activity 1 – Data collection and production of a national small hydro GIS database and review and validation of small hydro potential for NTT, Maluku, Maluku Utara and Sulawesi: Undertake a comprehensive scoping exercise, source and evaluate existing datasets, identify key stakeholders, carry out a detailed data gathering, and develop initial mapping outputs based on existing country-level datasets. Detailed review and update of small hydro potential for the areas of NTT, Maluku, Maluku Utara, and Sulawesi focusing on its possible role for isolated grids and electrification expansion. Validation of sites through detailed map studies and selected site visits. Inclusion of updated information for the four provinces in the national database.


Activity 2 – Support for the inclusion of small hydro potential in the geospatial electrification planning for NTT, Maluku, Maluku Utara, and Sulawesi: Review of existing Geospatial Electrification Planning tool in terms of its ability to include generation sources other than solar PVs, and suggestions for improvements to include small hydro potential.  Provision of information on small hydro potential to be fed into the Geospatial Electrification Planning tool based on the updated and validated small hydro potential for NTT, Maluku, Maluku Utara, and Sulawesi.



  • Hydro Resource Assessment and Mapping
  • Field campaigns and surveys
  • Sites Identification and Feasibility Studies
  • Energy sector evolution studies
  • Capacity building