review · Biotechnology for Biofuels
Ethiopia possesses substantial renewable energy reserves, yet modern energy conversion from biomass remains largely untapped. While renewable sources account for over 96 percent of the country's electricity generation capacity, biomass contributes less than one percent. The country generates approximately 141.8 million metric tons of biomass annually from woody resources, agricultural crop residues, and animal dung, but only around half of this potential is currently exploited. Transforming this surplus into clean energy presents an opportunity to diversify power generation without compromising food security, socioeconomic stability, or local ecosystems. Identifying effective production and utilisation techniques can help overcome existing operational barriers, providing scalable models for sustainable alternative energy systems that could be relevant to Ethiopia and other developing economies facing similar infrastructure and supply challenges.
Expanding clean electricity access is vital for sustaining rapid economic growth across developing nations. Understanding how to capture underutilised agricultural residues and animal waste allows energy planners and communities to generate power locally. This approach avoids competition with food production, protects natural ecosystems, and reduces reliance on unsustainable fuel sources while strengthening national energy security.
The findings point to opportunities for energy developers and agricultural processors to establish bioenergy generation systems using surplus crop residues, woody biomass, and animal waste. Because the review focuses on evaluating availability, challenges, and optimal techniques, the sector appears to be at an early planning and feasibility stage. Realising commercial applications will depend on implementing viable collection frameworks and energy conversion technologies at scale.
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Despite enormous challenges in accessing sustainable energy supplies and advanced energy technologies, Ethiopia has one of the world's fastest growing economies. The development of renewable energy technology and the building of a green legacy in the country are being prioritized. The total installed capacity for electricity generation in Ethiopia is 4324.3 MW as on October, 2018. Renewable energy accounts for 96.5% of total generation; however, despite the county's enormous biomass energy potential, only 0.58% of power is generated using biomass. Ethiopia has surplus woody biomass, crop residue and animal dung resources which comprise about 141.8 million metric tons of biomass availability per year. At present the exploited potential is about 71.9 million metric tons per year. This review paper provides an in-depth assessment of Ethiopia's biomass energy availability, potential, challenges, and prospects. The findings show that, despite Ethiopia's vast biomass resource potential, the current use of modern energy from biomass is still limited. As a result, this study supports the use of biomass-based alternative energy sources without having a negative impact on the socioeconomic system or jeopardizing food security or the environment. This finding also shows the challenges, opportunities and possible solutions to tackle the problem to expand alternative energy sources. The most effective techniques for producing and utilizing alternate energy sources were also explored. Moreover, some perspectives are given based on the challenges of using efficient energy production and sustainable uses of biomass energy in Ethiopia as it could be also implemented in other developing countries. We believe that the information in this review will shed light on the current and future prospects of biomass energy deployment in Ethiopia.
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DOI: 10.1186/s13068-021-02060-3
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