Agus Sugiria, A Yudi Eka R, M. Dyan Eka Susila, Ari Fajar Saputra

Studi Potensi Pembangkit Listrik Tenaga Mikrohidro Disungai Margajadi Pekon Sukaraja Kecamatan Way Tenong Kabupaten Lampung Barat Provinsi Lampung

Introduction

Studi potensi pembangkit listrik tenaga mikrohidro disungai margajadi pekon sukaraja kecamatan way tenong kabupaten lampung barat provinsi lampung. Kaji potensi Pembangkit Listrik Tenaga Mikrohidro (PLTMH) di Sungai Air Serut, Lampung Barat. Analisis debit air (0,292 m3/s) dan head menunjukkan potensi daya 16,8 kW. Cocok untuk PLTMH.

Abstract

Penelitian ini bertujuan untuk mengetahui debit air, ketinggian (head) air, dan jenis turbin. Penelitian ini dilakukan di Sungai Air Serut Pekon Sukaraja Kecamatan Way Tenong Kabupaten Lampung Barat Provinsi Lampung pada bulan April 2024 sampai Juli 2024. Proses analisa dengan menggunakan data primer berupa kecepatan aliran Sungai Air Serut, kedalaman Sungai Air Serut, lebar Sungai Air Serut, data sekunder berupa data curah hujan Kecamatan Fajar Bulan 2014 hingga 2023. Analisis dimulai dari memperkirakan debit andalan dengan menggunkan metode FDC (Flow Duration Curve), menghitung debit terukur pada Sungai Air Serut, melihat hubungan antara debit metode FDC dan debit terukur serta daya listrik yang dapat dibangkitkan. Dari hasil analisis metode rigionalisasi dapat digunakan untuk memperkirakan debir Sungai Air Serut yang dihitung dengan menggunakan metode FDC tidak jauh berbeda dengan debit terukur pada Sungai Air Serut. Metode FDC (Flow Duration Curve) untuk Sungai Air Serut sebesar 0,292 m3/s sedangkan untuk debit terukur pada lokasi Sungai Air Serut sebesar 0,295 m3/s. Berdasarkan perhitungan daya listrik yang dapat dibangkitkan pada Sungai Air Serut yaitu sebesar 16,8 kW. Dengan demikian Sungai Air Serut Pekon Sukaraja Kecamatan Way Tenong Kabupaten Lampung Barat Provinsi Lampung berpotensi untuk dijadikan Pembangkit Listrik Tenaga Mikrohidro (PLTMH).

Review

This paper presents a valuable preliminary study on the microhydro potential of Sungai Air Serut in Pekon Sukaraja, Lampung Barat. The research effectively addresses its primary objectives of determining water discharge, water head, and the overall potential for a Microhydro Power Plant (PLTMH). By combining primary field measurements (stream velocity, depth, and width) with secondary rainfall data, the study employs a robust methodology, including the widely accepted Flow Duration Curve (FDC) method, to estimate reliable discharge. The timing of the study from April to July 2024 is noted, and the clear identification of the research location adds to its specificity and practical relevance for local energy planning. A significant strength of this research lies in its methodical approach to validating the FDC results. The comparison between the FDC-derived flow (0.292 m³/s) and the directly measured flow (0.295 m³/s) demonstrates a high degree of correlation, bolstering the confidence in the study's estimations. This validation is crucial for assessing the reliability of long-term power generation potential. The concrete outcome, estimating a potential electrical power generation of 16.8 kW, provides a clear and actionable figure for stakeholders, unequivocally concluding that Sungai Air Serut possesses significant potential for PLTMH development. Such clear quantitative results are essential for initial feasibility assessments and informed decision-making. While the study provides a strong foundation, there are a few points that warrant attention. Most critically, there is an inconsistency between the river name in the title ("Sungai Margajadi") and the abstract ("Sungai Air Serut"). This discrepancy must be rectified immediately to avoid confusion regarding the study's actual location. Furthermore, while the abstract lists "mengetahui jenis turbin" (to determine the type of turbine) as an objective, the summary of results does not explicitly state which type of turbine would be most suitable or what factors would inform this decision. Incorporating this finding, or explaining its absence, would complete the scope outlined in the objectives. Finally, a brief elaboration on the "metode regionalisasi" mentioned in the results, particularly how it contributes to or validates the FDC approach, would enhance the methodological clarity for readers.

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