Economic Analysis of Biogas Production via Biogas Digester Made from Composite Material

This study seeks to evaluate the economic implication of a biogas digester built from composite material ascertain its cost effectiveness. The feasibility conducted indicates that brick made only fixed dome costs between USD 3193.99 and 4471.59. high is attributed construction material, thus prompting need use materials lower for affordability sustainability. Hence, under was comprising high-density polyethylene (HDPE), bricks cement. inlet outlet chambers were using cement, while digestion chamber HDPE material. From analysis conducted, total initial investment reported be 1623.41 with an internal rate return (IRR) 8.5%, discount payback period (DPP) 2 years net present value (NPV) 1783.10. findings equally revealed estimated quantity could replace 33.2% liquefied petroleum gas (LPG) cooking gas. Moreover, daily yield 1.57 m3 generates approximately 9.42 kWh electricity, which about 1.54. Thus, recommends plastics in constructing digester, as it effective sustainable.