Improving Millet Production Through Solar Energy‑Based Automation in Nepal

Intelligent Agriculture

Research Article

Improving Millet Production Through Solar Energy‑Based Automation in Nepal

Authors

  • Hari Prashad Joshi

    Everest Center for Research and Development Partners, Kathmandu 44600, Nepal
  • Sita Ram Kandel

    Faculty of Environmental Management, Prince of Songkla University, Hat Yai District, Songkhla 90110, Thailand
  • Hari Prasad Ghimire

    Everest Center for Research and Development Partners, Kathmandu 44600, Nepal

Received: 31 July 2025 | Revised: 10 September 2025 | Accepted: 18 September 2025 | Published Online: 30 September 2025

The millet, a local Nepali grain, is nutritionally rich and helps increase food security in extreme mountain weather conditions. This paper suggests the use of solar energy‑powered mechanization as a sustainable change to transform millet farming in Nepal. Solar power can be utilized to power irrigation systems, harvesters, and other equipment, thereby maximizing water utilization, minimizing drudgery, and ensuring the timely start of activities, while also substituting fossil fuels or grid power with high solar energy potential in Nepal. The research was conducted in the provinces of Gandaki and Bagmati in Nepal, specifically in areas where millets are a major crop. Two hundred forty millet farmers in a quantitative survey were interviewed to determine production issues and technology adoption, and a purposive subset of 18 farmers in controlled field trials was tested to test the performance of solar‑powered technologies. However, problems such as the high upfront costs, lack of technical skills, inefficient supply chain, and the inability to scale up in the smallholders block the expansion of the masses. To address these challenges, the study recommends coordinating efforts among government agencies, development partners, and private stakeholders. Subsidies, capacity building, and custom technology design can be used as strategic interventions. The increased solar mechanization of millet farming holds the potential of transformational gains: improved food security, rising farm incomes, a less harmful effect on the environment, and climate‑resilient farming in Nepal.

Keywords:

Millet Production Solar Energy Mechanization Sustainable Agriculture Nepal Renewable Energy in Farming Climate‑Resilient Crop Production

References

  1. Ravi, J.L., Rana, S.S., 2024. Maximizing the Nutritional Benefits and Prolonging the Shelf Life of Millets Through Effective Processing Techniques: A Review. ACS Omega. 9, 38327–38347. DOI: https://doi.org/10.1021/acsomega.4c03466
  2. Supe, H., Abhishek, A., Avtar, R., 2024. Assessment of the Solar Energy–Agriculture–Water Nexus in the Expanding Solar Energy Industry of India: An Initiative for Sustainable Resource Management. Heliyon. 10(1), e23125. DOI: https://doi.org/10.1016/j.heliyon.2023.e23125
  3. Daraz, U., Bojnec, Š., Khan, Y., 2025. Energy-Efficient Smart Irrigation Technologies: A Pathway to Water and Energy Sustainability in Agriculture. Agriculture. 15(5), 554. DOI: https://doi.org/10.3390/agriculture15050554
  4. Srinivas, I., Dhimate, A.S., Adake, R., et al., 2025. Emerging Technologies in Farm Mechanization for Rainfed Agriculture. Indian Farming. 75(1), 64–67.
  5. Diop, M., Thiam, M., Kebe, A., et al., 2024. Effects of Hammer Configurations on Pearl Millet Grinding System With a Hammer Mill: Theory and Experiment. Indonesian Journal of Electrical Engineering and Computer Science. 34(1), 658–665. DOI: http://doi.org/10.11591/ijeecs.v34.i1.pp658-665
  6. Safdar, T., Heap, B., 2016. Energy and Agriculture for Smart Villages in India. Technical Report 7. Smart Villages: Cambridge, UK. pp. 1–48.
  7. Abubakar, S.I., See, C.H., Sukki, F.M., et al., 2025. Deploying Agrivoltaics in Sub-Saharan Africa—A Sustainable Pathway Toward Energy-Food Security-Challenges and Opportunities: A Review. IEEE Access. 13, 87810–87833. DOI: https://doi.org/10.1109/ACCESS.2025.3568717
  8. Omer, M.A., 2018. Renewable Energy Technologies for Future and Sustainable Development. Journal of Ecology & Natural Resources. 2(2), 1–16. DOI: https://doi.org/10.23880/JENR-16000123
  9. Ramesh, D., Chandrasekaran, M., Soundararajan, R.P., et al., 2022. Solar-Powered Plant Protection Equipment: Perspective and Prospects. Energies. 15(19), 7379. DOI: https://doi.org/10.3390/en15197379
  10. Joshua O.O., Godson, O., Ovuchi, B., 2021. Development of an Efficient Crop Drying System Utilizing Renewable Energy for Post-Harvest Loss Reduction in Nigeria. ResearchGate preprint. RG.2.2.13945.99682. DOI: https://doi.org/10.13140/RG.2.2.13945.99682
  11. Omer, A.M., 2013. Renewable Energy Technologies and Sustainable Development. African Journal of Engineering Research. 1(4), 102–116.
  12. Al-Smadi, Y.M., Alshorman, A.M., Hassan, W., et al., 2022. Assessment and Perception of Renewable Energy Awareness and Potential in Jordan. Jordan Journal of Mechanical and Industrial Engineering. 16(4), 615–625.
  13. Baumwoll, J., 2008. The Value of Indigenous Knowledge for Disaster Risk Reduction: A Unique Assessment Tool for Reducing Community Vulnerability to Natural Disasters [Master Thesis]. Webster University: Webster Groves, MO, USA. pp. 1–24.
  14. Ogbonnaya, C., Abeykoon, C., Nasser, A., et al., 2021. Prospects of Integrated Photovoltaic-Fuel Cell Systems in a Hydrogen Economy: A Comprehensive Review. Energies. 14(20), 6827. DOI: https://doi.org/10.3390/en14206827
  15. Elfadil, A.D., 2022. Energy Use Pattern in Cotton and Groundnut Production in the Gezira Scheme, Gezira State, Sudan. Journal of Energy Research and Reviews. 10(3), 33–41. DOI: https://doi.org/10.9734/jenrr/2022/v10i330257
  16. Gebeyehu, M.A., Kebede, G.A., 2024. Innovative Automation in Injera Production: Design and Performance of a Relay-Based Control System. Journal of Engineering. 2024(1), 8035397. DOI: https://doi.org/10.1155/je/8035397
  17. Magyari, J., Hegedüs, K., Sinóros-Szabó, B., 2022. Integration Opportunities of Power-to-Gas and Internet-of-Things Technical Advancements: A Systematic Literature Review. Energies. 15(19), 6999. DOI: https://doi.org/10.3390/en15196999
  18. Merabet, N.H., Kerboua, K., Hoinkis, J., 2024. Hydrogen Production From Wastewater: A Comprehensive Review of Conventional and Solar Powered Technologies. Renewable Energy. 226, 120412. DOI: https://doi.org/10.1016/j.renene.2024.120412
  19. Zoulias, E., Varkaraki, E., Lymberopoulos, N., et al., 2004. A Review on Water Electrolysis. The Cyprus Journal of Science and Technology (TCJST). 4(2), 41–71.
  20. Jaradat, M., Almashaileh, S., Bendea, C., et al., 2024. Green Hydrogen in Focus: A Review of Production Technologies, Policy Impact, and Market Developments. Energies. 17(16), 3992. DOI: https://doi.org/10.3390/en17163992
  21. Soyturk, G., Kizilkan, O., Ezan, M.A., et al., 2023. Sizing of a Solar and Hydrogen-Based Integrated Energy System of a Stand-Alone House in Izmir. International Journal of Hydrogen Energy. 48(99), 39182–39196. DOI: https://doi.org/10.1016/j.ijhydene.2023.05.159

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