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 Prof. Thomas F. N. Thoruwa, a renewable energy and energy technology researcher whose work includes biomass-derived fuels, sustainable cooking energy, and solar energy technologies for applications in African communities.
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
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Thomas F. N. Thoruwa
Professor – Renewable Energy, Bioenergy & Appropriate Technology
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
OVERVIEW
Prof. Thomas F. N. Thoruwa is an experienced Kenyan renewable energy researcher and educator with a PhD in Mechanical Engineering. He has extensive experience in renewable energy, appropriate technology, biomass energy, solar energy, and sustainable energy systems. He previously served in the Department of Energy Engineering at Kenyatta University and has also served as Director of the Appropriate Technology Centre at Kenyatta University.
His work includes research and supervision involving biogas systems, biomass energy, solar technologies, energy efficiency, and renewable energy applications for rural communities. He has also contributed to research on biogas upgrading and the conversion of biogas to biomethane for domestic cooking.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
RESEARCH FOCUS
• Biogas and biomethane technologies
• Renewable energy systems
• Biomass energy and conversion
• Appropriate and sustainable technologies
• Solar energy applications
• Energy efficiency and energy systems
• Rural and community energy technologies
• Biogas upgrading and purification
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
RELEVANCE TO TERRADESIC AFRICA
Prof. Thoruwa’s extensive background in renewable energy, appropriate technology, biomass utilization, and biogas systems is closely aligned with the objectives of TerraDesic Africa. His previous work at Kenyatta University and his research on biogas upgrading and domestic cooking applications provide particularly relevant experience for the development and evaluation of low-cost biodigester systems for rural communities.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Sammy Mbatia
Graduate Researcher – Anaerobic Digestion Instrumentation & Controls
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━