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All Journal Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) Jurnal Locus Penelitian dan Pengabdian
Iskandar, Mario
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Aerospace Engineering Automotive Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Mathematics

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Determinants of Household Biogas-Bioslurry Economic Benefits: Linear Mixed Model with Cost-Benefit and Sensitivity Analysis Wijaya, Shirley; Iskandar, Mario; Daud Unas, Hardiono Arron
Jurnal Locus Penelitian dan Pengabdian Vol. 4 No. 12 (2025): JURNAL LOCUS: Penelitian dan Pengabdian
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/locus.v4i12.4867

Abstract

The increasing demand for sustainable energy solutions in rural areas has prompted the utilization of biogas and bio-slurry as alternative resources. This study aims to evaluate the economic feasibility of household-level biogas systems by integrating Cost-Benefit Analysis (CBA), Net Present Value (NPV), Benefit-Cost Ratio (BCR), and Undiscounted Payback Period (UPBP), complemented with sensitivity analysis. Primary data were collected from 16 households operating biogas systems, while secondary data supported the estimation of cost and benefit components. Results show that biogas adoption provides positive economic returns, with average NPV reaching Rp 12,749,000, BCR above 1.0, and UPBP within four years, indicating financial viability. Sensitivity analysis reveals that variations in LPG prices and livestock numbers significantly affect economic outcomes, demonstrating the importance of market and production factors in ensuring project sustainability. The findings conclude that household biogas systems are economically feasible and resilient under certain conditions. Future studies are suggested to expand the scope by incorporating environmental and social benefits, as well as exploring scalability at the community level.
The Role of Stakeholders in Strengthening Waste Bank Management in Pekanbaru City Iskandar, Mario; Zuhdi, Sulaiman
Dinasti International Journal of Economics, Finance & Accounting Vol. 7 No. 1 (2026): Dinasti International Journal of Economics, Finance & Accounting (March-April 2
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijefa.v7i1.6310

Abstract

Urban waste management remains a critical challenge to sustainable development due to rising waste generation and the suboptimal implementation of the reduce reuse recycle approach. Waste banks have emerged as a community based alternative that emphasizes public participation and cross stakeholder collaboration. This study analyzes stakeholder roles in strengthening the management of the Mutiara The Gade Clean and Gold Waste Bank in Tuah Karya Village, Pekanbaru City, and identifies factors influencing its sustainability. A descriptive qualitative approach was employed using in depth interviews, observation, and documentation. Informants were selected through purposive and snowball sampling. Data were analyzed with the interactive model of Miles and Huberman. The findings show that stakeholder roles are not balanced. The private sector, particularly PT Pegadaian Persero, plays a dominant role through mentoring and operational support that improves management effectiveness and encourages participation. Conversely, the local government role as regulator and supervisor remains limited, especially in guidance, coordination, and sustained facilitation. Community participation is relatively strong in waste sorting and deposit activities, although challenges persist in incentive mechanisms. Weak cross stakeholder coordination and the absence of a sustainable collaborative governance model hinder management strengthening. This study concludes that stronger stakeholder synergy, long term commitment, and collaborative governance are essential to sustain community based waste bank management.
Co-Authors Daud Unas, Hardiono Arron Sulaiman Zuhdi Wijaya, Shirley