Energy Research, Vol. 5, Issue 1, Sep  2021, Pages 52-76; DOI:

Criteria for Installed Discharge at Run-of-River SHPP

Energy Research, Vol. 5, Issue 1, Sep  2021, Pages 52-76.


Valentino Stojkovski 1* , Zoran Markov 1 , Marija Lazarevikj 1

1 Institute for Hydraulic Engineering and Automation, Faculty of Mechanical Engineering- Skopje, Republic of North Macedonia

Received: 1 September 2021; Accepted: 2 November 2021; Published: 23 November 2021

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The production of electricity at run-of-river small hydropower plants (SHPPs) is directly dependent on the available inflow of water into the resource. Leading attention in the design of this type of SHPP should be given to the use of water potential. By entering the technical conditions of the equipment for conveying and transformation of the available water energy into electricity, as well as the conditions for ensuring non-disturbance of the environment, the use of the natural energy potential of the water source is reduced. The selection of the installed discharge at run-of river SHPP has an influence on energy production, on one hand, and through the economy indexes to make-design for investment, on the other hand. In this paper, the influence of the installed discharge on energetic and economy indexes for design run of river SHPP are presented. The calculation model which was developed contains two blocks: energetic and economic. The results of the calculation are obtained for different installed discharge. The influence of the installed discharge to the energetic and economy parameters was presented graphically. The analyses are done on the basis of involved criteria of both energetic and economy parameters. Conclusions are drawn based on 13 case studies which can help for make-design for investment.


Installed Discharge, Run-Of-River SHPP, Energy Production, Economy Index


© 2017 by the authors. Licensee International Technology and Science Press Limited. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


[1] Shobayo, D.I.; Adejumobi, I.A.; Awokola, O.S.; Akinwale, A.T. An Assessment of the Small Hydro Potential of Opeki River. SJEE, 2014, 2(3), 25-31. 

[2] Sigma Engineering Ltd., Canadian Small Hydropower Handbook: British Columbia Region, The CANMET Energy Technology Center, (CETC), Energy Technology Branch,  Enegy Sector,  Department of Natural Resources Canada, Ottawa, Ontario, 1989; pp. 647.

[3] Stojkovski, V.; Markov, Z.; Kostikj, Z.; Challenges in the Selection of Installed Discharge at the Small run-of-river Hydropower plantProceedings of MEDJUNARODNO SAVETOVANJE: ENERGETIKA 2021, Zlatibor, Serbia, 22.06 - 25.06.2021. 

[4] Stojkovski, F.; Kostikj, Z.; Stojkovski, V.; Assessment Feasibility of Construction a Small Hydropower Plant, Proceedings of 17th International Symposium on Thermal Science and Engineering of Serbia SIMTERM 2015, Sokobanja, Serbia, 20-23.11.2015.

[5] Uhunmwangho, R.; Okedu E.K. Small Hydropower for Sustainable Development. Pac J Sci Technol, 2009, 10(2), 535-543. Available online: (accessed on 12 September 2021).

[6] Anagnostopoulos, J.S.; Papantonis, D.E.; Optimal sizing of a run-of-river small hydropower plant. Energy Conversion and Management, 2007, 48(10), 2663-2670.

[7] Liucci, L.; Valigi, D.; Casadei, S.; A new application of Flow Duration Curve (FDC) in designing run-of-river power plants. Water Resources Management2014, 28(3), 881-895.

[8] Stojkovski, V.; Korunoski, D.; Moving average aproach for prediction an energy production from run-of river power plant, Proceedings of XXXII Medjunarodno saverovanje ENERGETIKA 2016, Zlatibor, Serbia, 22.03-25.03.2016, 67-73.

[9] Norm IEC 62006, Hydraulic machines. Acceptance tests of small hydroelectric installations, 2010.

[10] Celso Peucho, How to develop a small hydro site, ESHA, 1998. 

[11] Guide how to develop a small hydro power plant, ESHA, 2004. 

[12] Guidebook on the RES power generation technologies, Leonardo da Vinci, Programe El/99/2/011015/ PI/II1.1.b/FPI, 1999. 

[13] Begovikj, K.; Hidroenergetska postrojenja, (book on Serbian), Zagreb, 1980. 

[14] Stojkovski, V.; Kostikj, Z.; Noshpal, A. Transient analisys into the water supply system of hydropower plants with short penstock, Proceedings of MEDJUNARODNO SAVETOVANJE ENERGETIKA 2011, Zlatibor, Serbia, 22.03 - 25.03.2011. 

[15] Stojkovski, V.; Noshpal, A.; Transient fluid flow into paralel pipelines constructed of pipes with different materials, Proceedings of XXXI MEDJUNARODNO SAVETOVANJE ENERGETIKA 2015, ZlatiborSerbia, 24.03-27.03.2015, 305-310. 

[16] Stojkovski, V.; Stojkovski, F. Influence of water supply system on efficiency at run-of-river small hydro power plant, Proceedings of International Conference & Workshop REMOO 2016, Budva, Montenegro, 18-20.05.2016. 

[17] Stojkovski, V.; Kostikj, Z. Prediction the energy production from small hydro power plants, Proceedings of XXXI MEDJUNARODNO SAVETOVANJE ENERGETIKA 2015, Zlatibor, Serbia, 24-27.03.2015, 117-121.

[18] Bekiri, E.; Stojkovski, V.; Ilievski, S.; The hidden energy potential at the system HPP Vrben, Proceedings of XXXV MEDJUNARODNO SAVETOVANJE ENERGETIKA 2020, Zlatibor, Serbia, 24.03-27.03.2020.