Department/Unit/Section: Energy Technology Engineering
Contact Address: 43844-00100 Nairobi
Area of Specialization: 
Renewable energy and environmental conservation.

Email:  This email address is being protected from spambots. You need JavaScript enabled to view it.


Google Scholar ID:   
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Research interests: Solar energy (photovoltaics, thermal, and solar-hydrogen production), biomassderived fuels and other renewables, energy storage (hydrogen & fuel cells, CAES, pumped hydro), energy analysis and environmental conservation.



  1. Contributing Author. Solar Water Heating Training Manual for the Kenyan Industry (2017). LECRD Project, MENR, UNDP and USAID.
  2. Dr. SHIOTA Akio, Francis Namu Njoka and Gideon G. Kidegho. Solar PV Systems: An Elucidating Manual for Solar PV Training (2016). JICA-JKUAT BRIGHT Project.
  3. Yoshifumi NISHIZAWA, Francis NJOKA, Churchill SAOKE, Noboru YUMOTO, Ngugi KAMAU. Introduction to Project Planning for Small Wind Turbine and Pump (2015). JICA-JKUAT BRIGHT Project.

Refereed Journals

  1. Kombe E. Y., Lang’at N., Njogu P., Malessa R., Weber, C. T., Njoka F., Krause U. Numerical Investigation of Sugarcane Bagasse Gasification using Aspen Plus and Response Surface Methodology. Energy Conversion and Management, 254 (2022)115198. doi:10.1016/j.enconman.2021.115198
  2. Kidegho G., Njoka F., Muriithi C., Kinyua R. Evaluation of Thermal Interface Materials in Mediating PV Cell Temperature Mismatch in PV-TEG Power Generation. Energy Reports – Under Review
  3. Kidegho G., Kinyua R., Muriithi C., Njoka F. Innovative Solar Photovoltaic and Thermoelectric Power Generator for a Recirculating Aquaculture System. IJRER, 2020; 10(3):1111-24
  4. Ndeto M. P., Wekesa D. W., Kinyua R., Njoka F. Investigation into the Effects of the Earth’s Magnetic Field on the Conversion Efficiency of Solar Cells. Renew. Energy, 2020; 159:184-94. doi: 10.1016/j.renene.2020.05.143.
  5. Njoka F, Mori S, Ookawara S, Ahmed M. Effects of photogenerated gas bubbles on the performance of photoelectrochemical reactors. Int J Hydrog Energy 2019; 44(21):10286-300. doi:10.1016/j.ijhydene.2019.02.194
  6. Njoka F, Ookawara S, Ahmed M. Influence of design and operating conditions on the performance of tandem photoelectrochemical reactors. Int J Hydrog Energy 2018; 43(3):1285–302. doi:10.1016/j.ijhydene.2017.11.168.
  7. Njoka FN, Ahmed MA, Ookawara S. Design of a Novel Photoelectrochemical Reactor for Hydrogen Production. vol. 224, Seville, Spain: WIT Press; 2017, p. 349– 61. doi:10.2495/ESUS170331.

Conferences & Workshops

  1. Speaker; “The Role of Youth in Achieving Clean and Affordable Energy” Webinar: Youths for a Sustainable Future Today. 7th September 2020.
  2. Presenter; Advanced Solar Home Systems Workshop, 27th February 2020, SarovaPanafric Hotel, Nairobi, Kenya
  3. Participant; ‘HYGRID-IMHOTEP’ Hydrogen and Fuel Cells Workshop, 14-15 November 2017, Faculty of Engineering, Zagazig University, Egypt.
  4. Presenter; 7th International Conference on Energy and Sustainability 2017, 20-22 September 2017, Melià Sevilla, Seville, Spain.
  5. Presenter; 1st International Conference of Chemical, Energy and Environmental Engineering (ICCEEE), 19-21 March 2017, Hilton Green Plaza, Alexandria, Egypt.
  6. Presenter; Small Wind Energy Training (SWET) Workshop by BBRIGHT-Project, 2016, Nairobi, Kenya.
  7. Participant; Low Emission Climate Resilient Development (LECRD) Project Workshops by MENR, UNDP and USAID, 2014-2016, Naivasha, Nairobi and Mombasa, Kenya.
  8. Participant; Sustainable Energy Access Forum Kenya (SEAF-K) Workshops, 2014- 2016, Naivasha and Machakos, Kenya.
  9. Participant; East African Power Pool Renewable Energy Corridor by IRENA, 2014, Addis Ababa, Ethiopia.
  10. Participant; Solar PV curriculum development workshop by KEREA, 2012, Naivasha Kenya.
  11. Participant; Sustainable Futures Conference: Architecture and Urbanism in the Global South, 2012, Kampala Uganda.
  12. Key speaker; Biofuels and Policy Conference and Seminar by Glopolis, 2012, Prague, Czech Republic. or
  13. Rapporteur; Eastern Africa Farmers Federation Bioenergy Conference, 2011, Nairobi, Kenya.
  14. Participant; Smell/Odour Measurements & Analysis for Commercial Biogas Plants, 2009, Braunschweig, Germany.
  15. Participant; Domestic Biogas Training Workshop, 2009, Oldenburg, Germany.
  16. Participant; Symposium on Small PV Applications, 2009, Ulm, Germany.
  17. Participant; ‘Cross Cultural Dialogue’ Seminar, 2008, Hildesheim, Germany.