The use of biogas is best for domestic use. Biogas is used in cooking and lighting domestically. The raw materials are readily available as biogas production is from organic material breakdown. Manure, food waste and sewerage are used in its production. Although the cost of setting up the biodigester is expensive, use of biogas proves cost-effective in the long run. More so, the use of biogas in farms with household plants is diverse and creates an attraction in rural life.
Biogas production to power vehicles is a good project but has several limitations. As such, I find it advisable not to produce biogas to power passenger vehicles. One weakness is the less demand for biogas fueled vehicles (Svenselius 1). The mass production of such cars thus becomes uneconomical. Secondly, biogas in its raw form is ineffective in powering vehicles due to the full composition of methane and carbon dioxide. To be effective in combustion there is the need for biogas to be refined to biomethane which can be done in an industrial setting. Use of biogas produced domestically cannot be used in the vehicles. Additionally, to convert a vehicle engine from gasoline to bi-fuel operation may be quite costly. The cost of conversion is estimated to be between $6,000 and $12,000 depending on the automobile model, engine category and size and the number of gas storage cylinders (Clarke and DeBruyn 1). Biogas has a lower energy density compared to natural gas; thus consumers may be forced to install extra fuel cylinders to lengthen the driving range. To accommodate extra biogas cylinders creates the need for additional space in the vehicles. Therefore, the use of extra barrels may be only useful for trucks and large vehicles.
Clarke, Steve, and Jake DeBruyn. “Vehicle Conversion to Natural Gas Or Biogas.” Omafra.gov.on.ca. N.p., 2018. Web. 7 Apr. 2019.
Svenselius, Monica Westman. “Where Are The Biogas Cars?.” Liu.se. N.p., 2017. Web. 7 Apr. 2019.