This volunteer team brings together two complementary strengths:
Dr. Emmanuel Yeri Kombe, a renewable energy engineer and university lecturer whose expertise includes bioenergy systems, biomass conversion technologies, and sustainable energy solutions for rural communities;
and Sammy Mbatia, a graduate researcher specializing in anaerobic digester instrumentation, monitoring, and control systems, using the TerraDesic Savannah Biodigester as the foundation for advanced operational studies.
Together, their expertise spans both the scientific understanding of renewable energy systems and the practical application of advanced monitoring technologies needed to improve biodigester performance, validate field observations, and develop effective training methods for future users.
With public support, their volunteer efforts can help transform innovative research into practical solutions that improve energy access, restore soil productivity, and strengthen rural livelihoods across Africa’s savannah regions.
Dr. Emmanuel Yeri Kombe
Renewable Energy Systems & Bioenergy Researcher
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OVERVIEW
Samuel Adjei-Nsiah is a senior Ghanaian soil and agronomy scientist with more than two decades of experience in tropical agriculture research and teaching. He is widely recognized for his work on soil fertility management, sustainable cropping systems, and biological nitrogen fixation in legumes.
He is based at the University of Ghana and has held leadership roles within agricultural research centers focused on field crops and smallholder farming systems.
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RESEARCH FOCUS
- Bioenergy systems
- Biomass gasification
- Renewable energy technologies
- Hydrogen-rich syngas production
- Energy modeling and optimization
- Energy planning and policy
- Energy auditing
- Agricultural waste utilization
- Sustainable rural energy systems
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RELEVANCE TO TERRADESIC AFRICA
Dr. Kombe’s expertise bridges academic research and practical renewable energy applications. His work on biomass conversion, agricultural residues, waste-to-energy systems, and rural energy technologies aligns closely with the objectives of TerraDesic Africa’s biodigester initiative. His background in renewable energy modeling and bioenergy research could provide valuable scientific support for evaluating biodigester performance, feedstock utilization, and community-scale energy systems in savannah environments.
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Sammy Mbatia
Graduate Researcher – Anaerobic Digestion Instrumentation & Controls
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OVERVIEW
Sammy Mbatia is a graduate researcher at Kenyatta University whose work focuses on the instrumentation, monitoring, and control of anaerobic digestion systems. His research uses the TerraDesic Savannah Biodigester as a foundation for studying how advanced scientific measurements can be used to better understand and optimize biodigester performance under real-world operating conditions.
Rather than concentrating solely on laboratory analysis, Mbatia’s work emphasizes the practical relationship between instrument data and field observations. By comparing measurements such as gas production, pressure, temperature, and process stability with the visual and operational indicators available to users, he seeks to identify reliable methods for managing biodigesters in environments where sophisticated equipment may not be available. His research supports one of the central goals of the TerraDesic Africa initiative: developing biodigester systems that are scientifically validated yet simple enough to be operated and maintained by families in remote savannah communities. Through this work, lessons learned from advanced instrumentation can be translated into practical training methods that help future users recognize healthy biodigester operation without relying on expensive monitoring equipment.
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RESEARCH FOCUS
• Anaerobic digester instrumentation and controls
• Process monitoring and performance evaluation
• Correlation of instrument data with field observations
• Small-scale biodigester optimization
• Renewable energy systems for rural communities
• Practical operator training methodologies
• Biogas production analysis and system stability
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RELEVANCE TO TERRADESIC AFRICA
As part of the TerraDesic Africa volunteer initiative, Mbatia’s research helps bridge the gap between university engineering studies and community-level implementation. His work provides a scientific framework for understanding how biodigesters perform under varying conditions while helping develop practical operational guidelines that can be used by families, extension workers, and future project participants throughout Africa’s savannah regions.
By translating advanced engineering measurements into simple management practices, his research contributes to the long-term goal of creating reliable, low-cost biodigester systems that improve household energy access, support soil restoration, and strengthen rural livelihoods.
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