Abstract
Pakistan is a developing country with a rapidly growing population. It is currently facing serious economic and energy challenges. Pakistan's energy demand is increasing by the day, and it now stands at 84 MTOE. Currently, the use of fossil fuels dominates Pakistan's energy sector. Conversely, indigenous fossil fuel resources are rapidly depleting and will be unable to meet rising energy demands in the future. Therefore, to withstand its energy needs, the country will need to explore alternative energy production methods. Biomass is one of the alternatives that has enormous potential to help Pakistan combat its growing energy crisis. In this review, we first present an overview of bioenergy, biomass resources, and biomass conversion technologies. We then discuss in detail the current state of the energy mix of Pakistan. Subsequently, we show that annual production of about 121 MT of agricultural residues, 427 MT of animal manure, and 7.5 MT of MSW in Pakistan offer a variety of bioenergy options ranging from biofuels to bio-electricity production. Overall, these biomass resources in Pakistan have the potential to generate 20,709 MW of bio-electricity and 12,615 million m3 of biogas annually in Pakistan. Though these resources hold promising potential for bioenergy production in the country, however, there are some critical challenges that need to be considered, and some of which are extremely difficult to overcome for a developing country like Pakistan. This work is expected to provide a useful basis for biomass management and utilization in Pakistan to harvest eco-friendly and sustainable green energy locally.
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