Videos | Week 2

Topic Progress:

Renewable Energy Resources & Technologies

Ramchandra Bhandari, Professor for Renewable Energy Systems at TH Köln – University of Applied Sciences, provides and overview of Renewable Energy resources and Technology. In the second part of this week’s lecture you will learn more about solar energy and potential uses in agricultural value chains.



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  1. Profile photo of Gaudence Swai

    i didn’t encounter any problem in opening the video

  2. Profile photo of Innocent SIMPUNGA

    good topic as sustainable energy for food, both renewable and no renewable energy

  3. Profile photo of Pauline Muchai

    Very interactive course we haveh here. renewable and non renewable energy

  4. Profile photo of Sarah M. Edelman

    Oh my! His accent is so thick and the subtitles scroll faster than he talks!

    Other than that, great info! I look forward to learning more about solar irrigation.

  5. Profile photo of Sogo Mayokun Abolarin

    Introduction of the basics given in this week 2 is vital, it shows that no too much technicality is needed to obtain the variables

  6. Profile photo of Lemma Belay Ababu

    Great, touches upon the different sources of renewable energy sources. But they are quite costly sets of technologies for the resource poor farmers and vulnerable pastoralists in Africa. Looking forward to learn affordable/low cost technologies in the chapters to come.

  7. Profile photo of Abdinasir Sadik Mukhtar

    As I understood the is introductory so every body needs some more research specific to his/her region. Thanks any way.

  8. Profile photo of soojin kim

    Thank you for the great overview. I remember her talking about FAO-WB joint project on energizing agriculture in latin america. How can I find more information on the project? I’m very interested in learning more about it. Thanks!

  9. Profile photo of Yohannes Mekonnen

    Interesting! It reminded me of the 1st law of Thermodynamics which states that ‘energy can change from one form to another, i.e. energy cannot be created or destroyed.
    The energy we receive from nature is plenty, and it is available in different forms, we just have to know and learn how to use it efficiently in an environmentally friendly manner.

  10. Profile photo of Raymond Sseguya

    Are we going to design solar systems? I look forward to it. Interesting.

  11. Profile photo of Liz Lucas

    I am interested to learn the cost benefits of wind energy. How much non-nonrenewable energy it takes to build and transport a wind turbine, and how long does it take the turbine to produce that much energy?

    • Profile photo of Vilja Schwamborn

      I read a study about the energy efficiency of wind turbines. They calculated the energy return on investment (EROI) which is the ratio between the energy the system delivers and the energy it costs. The average EROI was 25 which is better for example than the EROI for PV systems (6.5) However, the calculation of the energy efficiency is very difficult and influenced by many different factors. Nevertheless, it indicates that wind energy is an efficient alternitive to non-renewable energy resources. Here is the link

  12. Profile photo of Natalie Harms

    quite complicated renewable energy technology is broken down very nicely here, good job! the visualisations are also very helpful. will recommend this video to some of our interns starting to work on RE solutions.

  13. Profile photo of Joseph Kirule

    This is a very good introduction to the world of renewable energy technologies. The illustrations were quite useful in quickening my understanding of the lecture by professor Bhandari.

  14. Profile photo of BENEDIKT MAIBAUM

    Does it really mean “head” in the equation of hydro power plants or is it a typo and the final meaning is “height”?

  15. Profile photo of BENEDIKT MAIBAUM

    ohh just saw it in the reader, my fault:
    h= head (falling height) [m]

  16. Profile photo of Surendra Pandit

    General and very informative presentation for further depth knowledge on renewable energy and its different application.

  17. Profile photo of Elsa Nikola Gerhard

    I liked this lecture very much, it was very easy to understand. Nevertheless it was quite confusing that the subtitles ran way too fast. Don’t know if this was just a problem at my computer….

  18. Profile photo of Yobo A Koue Fidele Honorine

    the video really makes one part f the reader easier to understand. I loved the illustrations

  19. Profile photo of Yobo A Koue Fidele Honorine

    i wish i could have an easy guide to get youths including my children interested in mouting some of these solutions by themselves. Can someone direct me to such a guide?

  20. Profile photo of Abdulmutalib Yussuff

    Very clear presentation…..these technologies are available off the shelve and we do not need to re-invent the will to use them. All we need in order to ensure deeper penetration of these technologies in the agricultural sector is a continued support (access to finance & capacity building) to entrepreneurs who brings these technologies to the door-steps of farmers that need them.

  21. Profile photo of Nassereldin Ibrahim

    Very nice informative video
    But why we can not control the timing in the playing video, to repeat parts?

  22. Profile photo of Manuel Castrillo

    Within the alternative energy is generated by the motion of the sea, whose production is more continuous and great potential in his generation, with a relatively reasonable and attractive for investment infrastructure, freeing up much impact they may have dams watersheds.

  23. Profile photo of Kenneth Ndungu

    The presentation is very informative and presented clear to the point

  24. Profile photo of Katherinne Benavides Cortes

    Renewable energies alive !! .. Thank you for this video motivates me to continue with the main course that is reading .. to expectations of solar energy and its applications. This is new for me!!

  25. Profile photo of Stephen Edgar

    This was a wonderful overview. It allowed for a fair grasp of renewable energy.

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