Hydrological Analysis of Mini Hydro Power Plants (PLTM) Using The Flow Duration Curve Approach

Authors

  • Nengah Bennuwardana Republic of Indonesia Defense University, Indonesia, Indonesia
  • Sukendra Martha Republic of Indonesia Defense University, Indonesia, Indonesia
  • Yosef Prihanto Republic of Indonesia Defense University, Indonesia, Indonesia
  • Dangan Waluyo Republic of Indonesia Defense University, Indonesia, Indonesia
  • Firmansyah Firmansyah Indonesian Agency for Meteorology, Climatology, and Geophysics, Indonesia
  • Bachtiar Rifai Indonesian Agency for Meteorology, Climatology, and Geophysics, Indonesia

DOI:

https://doi.org/10.54543/syntaximperatif.v6i4.792

Keywords:

Mini Hydro Power Plant (PLTM), , Hydrological Analysis, Reliable Discharge, Flow Duration Curve

Abstract

Hydrological analysis is crucial in the planning of a Mini-Hydro Power Plant (PLTM). This study aims to examine the hydrological aspects of the Way Besai PLTM, located in Bonglai Village, Way Kanan Regency, Lampung Province. The Way Besai Mini-Hydro Power Plant (PLTM) is a runoff-river PLTM scheme located approximately 242 km north of Bandar Lampung City, Lampung Province, Indonesia. The data used include daily rainfall data from six rainfall stations, climate element data from the Radin Inten II Meteorological Station, and outflow data from the Besai PLTA. The rainfall data were analyzed for consistency using the Mass Curve method, with only three stations deemed consistent. Potential evapotranspiration was calculated using the Modified Penman method. Furthermore, the rainfall data were converted into daily discharge data using the F.J. Mock Rainfall to Runoff hydrological method. The catchment area is 449.14 km2 at the intake site and the average annual rainfall reaches 2,366 mm/year. The analysis results are used to determine the mainstay discharge (plant discharge) and the planned flood discharge through the Flow Duration Curve (FDC). Based on these results, the Way Besai Hydroelectric Power Plant is projected to have a generated power of 9.2 MW and an annual energy of 67.513 GWh resulting from the utilization of an effective water head of 67.45 m and a maximum plant discharge of 16.5 m3/second.

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Published

2025-09-17

How to Cite

Bennuwardana, N., Martha, S., Prihanto, Y., Waluyo, D., Firmansyah, F., & Rifai, B. (2025). Hydrological Analysis of Mini Hydro Power Plants (PLTM) Using The Flow Duration Curve Approach. JURNAL SYNTAX IMPERATIF : Jurnal Ilmu Sosial Dan Pendidikan, 6(4). https://doi.org/10.54543/syntaximperatif.v6i4.792

Issue

Vol. 6 No. 4 (2025): Jurnal Syntax Imperatif: Jurnal Ilmu Sosial dan Pendidikan

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Articles

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Copyright (c) 2025 Nengah Bennuwardana, Sukendra Martha, Yosef Prihanto, Dangan Waluyo, Firmansyah Firmansyah, Bachtiar Rifai

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