UNIMALUNIMAL

Journal of Renewable Energy, Electrical, and Computer EngineeringJournal of Renewable Energy, Electrical, and Computer Engineering

This study evaluates the impact of an earthquake on a mini-hydropower plant (MHP) and formulates a disaster management strategy to enhance the operational resilience of MHPs against seismic events. Data was collected through interviews with relevant stakeholders, direct observations, and analysis of pertinent documents. The findings indicate that the 2018 Lombok earthquake caused severe damage to the catchment area, triggering increased sedimentation that disrupted the MHPs operation, resulting in decreased electricity production and escalated operational costs. Mitigation measures were implemented and proved effective in reducing debris-related downtime and improving electricity generation. These findings are expected to provide guidance for MHP operators in mitigating the negative impacts of earthquakes and similar disasters on plant operations.

The 2018 Lombok earthquake significantly impacted the Kokok Putih hydropower plant, revealing a lack of comprehensive post-disaster recovery planning beyond physical damage repair.Strategic mitigation measures, including a new intake, additional excavators, and a secondary channel, successfully restored pre-earthquake production levels.This experience highlights the necessity for proactive risk assessment and mitigation in post-disaster recovery to ensure the resilience of hydropower plants.

Penelitian lanjutan perlu difokuskan pada pengembangan sistem peringatan dini berbasis sensor yang terintegrasi dengan data seismik dan hidrologi untuk memprediksi potensi peningkatan sedimentasi pasca-gempa, sehingga operator PLTM dapat mengambil tindakan preventif sebelum terjadi gangguan operasional. Selain itu, studi komparatif perlu dilakukan pada beberapa PLTM di wilayah rawan gempa dengan karakteristik geografis berbeda untuk mengidentifikasi strategi mitigasi yang paling efektif dan adaptif terhadap kondisi lokal. Terakhir, penelitian perlu mengeksplorasi penggunaan teknologi pemodelan dan simulasi untuk memprediksi dampak gempa bumi terhadap infrastruktur PLTM, termasuk potensi kerusakan pada bendungan dan saluran air, serta mengembangkan skenario respons darurat yang optimal untuk meminimalkan kerugian dan memastikan keberlanjutan pasokan energi terbarukan.

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