The extent, characteristics and potential of solar powered irrigation systems in South Africa
DOI:
https://doi.org/10.17159/2413-3051/2021/v32i2a9045Keywords:
solar panels, irrigation system integration, water use efficiency, load sheddingAbstract
South Africa has been identified as having a high potential for solar powered irrigation. However, there has been a lag in the development of solar powered irrigation systems (SPIS) there, mainly due to the high investment cost associated with solar technology. South Africa has frequently implemented load shedding, which has affected many farmers. The work reported in this paper sought to determine the extent of solar powered irrigation and characteristics of the system types in use. The extent of SPIS in South Africa was determined using a questionnaire, and categorised in terms of farm size, SPIS configuration (storage of energy), type of irrigation, and location of the system. These were established mainly from a literature search. The questionnaires were administered on Survey Monkey®. The sample size of the study was 138 755 potential respondents. The number that participated and completed the questionnaires included a total of 18 SPIS engineers, installers and designers and 13 SPIS users (farmers). The main problem encountered with the distribution of the survey was finding SPIS users to participate. Results from SPIS engineers, installers and designers showed that most SPIS they implemented were in the Western Cape and the Eastern Cape, at 33% of the responses for both provinces. The total area under SPIS was found to be 364 ha, while the area under irrigation is South Africa is 1 300 00 ha, indicating a high potential for SPIS development. Some details on the extent of SPIS in South Africa were determined in this paper, but more SPIS users need to be identified to determine the details of their SPIS.
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References
Abdelfattah, A. 2017. Solar powered water lifting for irrigation. Food and Agriculture Organization of the United Nations, Rome, Italy.
Argaw, N. 2003. Renewable energy for water pumping applications in rural villages. National Renewable Energy Laboratory, Colorado, USA.
Basalike, P. 2015. Design, optimization and economic analysis of photovoltaic water pumping technologies, case Rwanda. Unpublished thesis, School of Business, Society and Engineering, Mälardalen University, Västerås, Swe-den.
Bharam, V. 2012. Solar energy: Materials for photovolaic cell advantages and challenges for silicon in the photovolta-ic cells. Trinity College, Connecticut, USA.
Biswas, S and Iqbal, M. 2018. Dynamic modelling of solar water pumping system with energy storage. Journal of Solar Energy 1 (1): 1–12. doi: 10.1155/2018/8471715
Bonthuys, J. 2018. In-depth study shed light on irrigated farming areas, water use. [Internet] The Water Wheel. Available from: http://www.wrc.org.za/wp-content/uploads/mdocs/WW%20July_Aug%202018%20IRRIGATION%20WATER%20USE.pdf. [Accessed: 04 May 20201].
CHESA [Council of Higher Education South Africa].2012. Vital Stats Public Higher Education 2012 [Internet]. Availa-ble from: https://www.che.ac.za/#/docview. [Accessed: 25 September 2018].
Cornish, G. 1998. Modern irrigation technologies for smallholders in developing countries. Intermediate Technology Publica-tions in association with HR Wallingford UK.
Davies, S. 2013. Solar panel types. Solarflex SA, Somerset West, South Africa.
DoE [Department of Energy]. 2012. Draft 2012 integrated energy planning report. Department of Energy, Pretoria, South Africa.
DoE [Department of Energy] and GIZ [Deutsche Gesellschaft für Internationale Zusammenarbeit]. 2015. State of renewable energy in South Africa. Department of Energy, Pretoria, South Africa.
Department of Rural Development and Land Reform. 2017. Land audit report: Phase II: Private land ownership by race, gender and nationality. Department of Rural Development and Land Reform, Pretoria, South Africa.
DWF [Department of Water Affairs and Forestry]. 2004. National water resource strategy. Department of Water Af-fairs and Forestry, Pretoria, South Africa.
ECSA [Engineering Council of South Africa]. 2016. Engineering Council of South Africa annual report 2015/2016. Engi-neering Council of South Africa, Waterview Corner Building e Ernest Oppenheimer Avenue Bruma 2198, South Africa.
Eker, B. 2005. Solar powered water pumping systems. Trakia Journal of Sciences 3 (7): 7–11.
Erasmus, D. 2013. Solar energy use on the rise in SA. [Internet]. Farmer's Weekly. Available from: https://www.farmersweekly.co.za/agri-technology/farming-for-tomorrow/solar-energy-use-on-the-rise-in-sa. [Accessed: 05 October 2018].
Eskom. 2014. Connection of small-scale renewable generation to Eskom's network. [Internet]. Eskom. Available from: http://www.eskom.co.za/Whatweredoing/Documents/CustBulletinLPU.pdf#page=1&zoom=auto,-19,325. [Accessed:30 September 2018].
Gomo,T. 2010. Assessing the performance of smallholder irrigation in South Africa and opportunities for deriving best management practices. Thesis, School of Bioresources Engineering and Environmental Hydrology, University of KwaZulu-Natal, Pietermaritzburg, South Africa.
Hartung, H and Pluschke, L. 2018. The benefits and risks of solar-powered irrigation - A global overview. Food and Agricultural Organization of the United Nations, Rome, Italy.
Hassan, M. 2015. Market assessments for solar-powered irrigation pumps in Morocco, South Africa and Yemen. Inter-national Finance Corporation, Rome, Italy.
Joffe, H. 2012. Challenges for South Africa's electricity supply industry. The Journal of the Helen Suzman Foundation (64): 32–37.
Jumman, A and Lecler, N. 2010. Electricity tariff increases impact on irrigators. Proceedings of the South African Sug-ar Technology Association (83): 152–155.
Laswell, R. 2018. Comparing monocrystalline, polycrystalline, and thin-film solar panels. [Internet]. Semprius. Avail-able from: https://www.semprius.com/comparing-mono-polycrystalline-and-thin-film-solar-panels/. [Accessed: 10 October 2018].
Niekerk, A, Jarmain, C, Goudriaan, R, Muller, S, Ferreira, F, Münch, Z, Pauw, T, Stephenson, G and Gibson, L. 2018. An earth observation approach towards mapping irrigated areas and quantifying water use by irrigated crops in South Africa. Report No. TT 745/17. Water Research Commission, Gezina, South Africa.
Padayachee, P. 2017. We have too few women engineers in South Africa - Here's what we can do to fix that. [Inter-net]. Huffington Post. Available from: https://www.huffingtonpost.co.za/priyanka-padayachee/we-have-too-few-women-engineers-in-south-africa_a_21703682/. [Accessed: 25 September 2018].
Makana Municipality. 2005. Local Environmental Action Plan. Part III Comprehensive Audit Report: Domestic energy, solar power and waste management. Makana Municipality, South Africa.
Schulze, RE. 2016. On observations, climate challenges, the South African agriculture sector and considerations for an adaptation handbook. In: Schulze, R.E.(ed), Handbook for farmers, officials and other stakeholders on adapta-tion to climate change in the agriculture sector within South Africa. Ch Section A: Agriculture and climate change in South Africa: Setting the scene, Chapter A1.
Sendy, A. 2017. Pros and cons of monocrystalline vs polycrystalline solar panels. [Internet]. Solar Reviews. Available from: https://www.solarreviews.com/blog/pros-and-cons-of-monocrystalline-vs-polycrystalline-solar-panels. [Accessed: 25 September 2018].
Singh, J. 2016. Ranking South African provinces on the basis of MERRA 2D surface incident shortwave flux. Journal of Energy in Southern Africa 27 (3): 50–57. doi: 10.17159/2413-3051/2016/v27i3a1555
SurveyMonkey. 1999. Survey Monkey. [Internet]. Available from: https://www.surveymonkey.com/. [Accessed: 30 August 2018].
Van der Walt, J. 2019. Western Cape boasts Africa's first floating solar system. [Internet]. Farmers Weekly. Available from: https://www.farmersweekly.co.za/agri-news/south-africa/western-cape-boasts-africas-first-floating-solar-system/. [Accessed: 12 May 2019].
Volk, M. 2005. Pump characteristics and applications. Taylor and Francis Group, Boca Raton, Florida, USA.
Zegeye, M, Tadiwos, T and Aman, A. 2014. Optimal sizing of solar water pumping system for small scale irrigation: Case study of Dangila. International Journal of Renewable and Sustainable Energy 3 (5): 99–107. doi: 10.11648/j.ijrse.20140305.13
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