Bedana Dilruba, Kamruzzaman M, Rana Md Jaber, Mustafi B A A, Talukder Rezaul Karim
Department of Agricultural Economics, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh.
Khulna Agricultural University, Bangladesh.
Heliyon. 2022 Sep 20;8(9):e10727. doi: 10.1016/j.heliyon.2022.e10727. eCollection 2022 Sep.
Installation of a biogas plant in a rural region has become a viable alternative energy source with a variety of health and environmental advantages. Though Bangladesh has enormous resources for biogas production, biogas energy production is infancy stage in Bangladesh. The study aims to explore the economic aspect of household-level biogas plants and determine the relationship between biogas plant functionality and different factors. For doing this, 300 biogas plant owners were interviewed from fifteen Upazilla in Bangladesh and respondents were chosen by a two-stage random sampling technique. The study shows by measuring partial budgeting, USD 294.80 per year can be earned by a family by introducing biogas plant. Cost-benefit analysis showed that a small biogas plant (USD 143.07/year) was most profitable, followed by a large biogas plant (USD 142.17/year). In discounted cost-benefit analysis, medium size biogas plant was found to be the most beneficial investment, followed by a small size biogas plant. Average NPV, BCR, PBP, and IRR of Biogas plant were USD 1629.11, 1.77, 2.93, and 48% with subsidy where USD 1525.25, 1.77, 3.75, and 43% without subsidy. The measurement of carbon trading also highlights the economic benefit of a biogas plant in Bangladesh. The bivariate relationship between the functionality of biogas plants with different factors highlights that higher educated, trained plant owners with quality mason and follow up services ensured the efficient operation of the biogas plant.
在农村地区安装沼气厂已成为一种可行的替代能源，具有多种健康和环境优势。尽管孟加拉国拥有丰富的沼气生产资源，但沼气能源生产在该国尚处于起步阶段。该研究旨在探讨家庭层面沼气厂的经济层面，并确定沼气厂功能与不同因素之间的关系。为此，从孟加拉国的15个乡采访了300名沼气厂业主，采用两阶段随机抽样技术选取受访者。研究表明，通过部分预算法测算，引入沼气厂后，一个家庭每年可赚取294.80美元。成本效益分析表明，小型沼气厂（每年143.07美元）利润最高，其次是大型沼气厂（每年142.17美元）。在贴现成本效益分析中，中型沼气厂被认为是最有利可图的投资，其次是小型沼气厂。有补贴时沼气厂的平均净现值、效益成本比、投资回收期和内部收益率分别为1629.11美元、1.77、2.93和48%，无补贴时分别为1525.25美元、1.77、3.75和43%。碳交易的测算也凸显了孟加拉国沼气厂的经济效益。沼气厂功能与不同因素之间的双变量关系表明，受过高等教育、经过培训的厂主，以及有资质的泥瓦匠和后续服务，可确保沼气厂高效运行。
