Optimization of Economic Dispatch for PV-Diesel Hybrid System: A Comparative Analysis of Operation Strategies in Dulah Laut, Maluku

Ardi Wahyu Nugroho; Agung Cahyadi Putra; Rinaldy Dalimi

doi:10.62146/ijecbe.v3i4.144

Authors

Ardi Wahyu Nugroho Universitas Indonesia
Agung Cahyadi Putra Universitas Jenderal Soedirman
Rinaldy Dalimi Universitas Indonesia

DOI:

https://doi.org/10.62146/ijecbe.v3i4.144

Keywords:

battery, diesel, economic dispatch, photovoltaic, hybrid system, operation strategy

Abstract

Eastern Indonesia, including regions like Maluku, has high potential for Renewable Energy Sources (RES), particularly solar energy, with irradiation levels ranging from 4.5 to 5.5 kWh/m²/day. However, limited access to the national electricity grid has led to many remote areas, such as Dulah Laut, Maluku, relying heavily on diesel generators. According to The Dedieselization program in Indonesia, which aims to transition from diesel-powered power plants to renewable energy sources, using a PV-diesel hybrid system is suitable for application in Indonesia's remote areas. This study evaluates four dispatch strategies—Conventional Method, Load Following (LF), Cycle Charging (CC), and Optimal BES Dispatch (OBD)—for a hybrid PV-Diesel-Battery system aimed at optimizing energy use in Dulah Laut, where the load profile exhibits peak load variations under a similar load factor due to predominantly residential consumption. Simulation and techno-economic analysis using Microsoft Excel indicate that the OBD strategy provides high-RES utilization and the lowest Levelized Cost of Electricity (LCOE) (Rp 5825/kWh), making it the most effective solution for energy system optimization in the Dulah Laut region.

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