Possibilities of Creating a Energy System Based on Renewable Energies in Karpathos Island, Greece


  • John Vourdoubas Consultant Engineer, 107B El. Venizelou str, 73132, Chania, Crete, Greece


climate change, electricity storage, El Hierro island, floating solar panels, Karpathos island, non-interconnected islands, renewable energies, sustainability


Mitigation of climate change is an important and urgent issue in our world. Many islands have autonomous energy systems generating electricity from fossil fuels. Many of them have abundant indigenous benign energy resources while their ecosystems are fragile. Aim of the current work is to investigate the possibility of creating a hybrid energy system based on local renewable energy resources in Karpathos island, Greece. Karpathos island has similar characteristics with El Hierro island, Spain which has already successfully installed a hybrid energy system generating around 60% of its annual electricity consumption from wind energy while it has received an EU prize for this achievement. The current study proposes that a similar hybrid energy system with smaller size can be constructed in Karpathos island increasing its energy sustainability. The size of the wind farm in Karpathos island was evaluated at 9.2 MW, of the pumping station at 4.8 MW, of the hydro-electric turbine, at 9 MW and of the two water reservoirs at 304,000 M3 and 120,000 M3. A floating solar-PV system with nominal power at 2.15 MWp installed on the surface of the upper water dam could generate 3,226 MWhel covering approximately 8.6% of the annual electricity demand in Karpathos island. The results indicate that local renewable energy resources could cover the most of the energy needs in non-interconnected Greek islands, like Karpathos, increasing their energy sustainability and assisting them to de-carbonize their economies complying with the Greek and EU targets for 2050.


Y. Qiblawey, A. Alassi, M. Zain ul Abideen, & S. Banales, “Techno-economic assessment of increasing the renewable energy supply in the Canary Islands: The case of Tenerife and Gran Canaria”, Energy Policy, Vol. 162, pp. 112791, 2022. https://doi.org/10.1016/j.enpol.2022.112791

H.Ch. Gils, & S. Simon, “Carbon neutral Archipelago – 100% renewable energy supply for the Canary islands”, Applied Energy, Vol. 188(C), pp. 342-355, 2017. https://econpapers.repec.org/scripts/redir.pf?u=https%3A%2F%2Fdoi.org%2F10.1016%252Fj.apenergy.2016.12.023;h=repec:eee:appene:v:188:y:2017:i:c:p:342-355

M. Panagiotidou, G. Xydis, & Ch. Koroneos, “Spatial inequalities and wind farm development in the Dodecanese islands – Legislative framework and planning: A review”, Environments, Vol. 3, pp. 18, 2016. doi:10.3390/environments3030018

I. Kougias, S. Szabo, A. Nikitas, & N. Theodosiou, “Sustainable energy modeling of non-interconnected Mediterranean islands”, Renewable Energy, Vol. 133, pp. 930-940, 2019.

K. Fiorentzis, Y. Katsigiannis, & E. Karapidakis, “Full-scale implementation of RES and storage in an island energy system”, Inventions, Vol. 5, pp. 52, 2020. DOI:10.3390/inventions5040052

G. Notton, M-L. Nivet, C. Voyant, J-L. Duchaud, A. Fouilloy, D. Zafirakis, & J. Kaldellis, “Tilos, an autonomous Greek island thanks to a PV/wind/Zebra battery plant and a smart energy management system”, in 7th International Conference on Energy Efficiency and Agricultural Engineering, 11-123 June 2020, Ruse, Bulgaria. https://hal-univ-corse.archives-ouvertes.fr/hal-03046036

S. Szabo, I. Kougias, M. Moner-Girona, & K. Bodis, “Sustainable energy portofolios for small-island states”, Sustainability, Vol. 7(9), pp. 12340-12358, 2015. https://doi.org/10.3390/su70912340

S.V. Papaefthimiou, E.G. Karamanou, & St.A. Papathanasiou, “A wind-hydro-pumped storage station leading to high RES penetration in the autonomous island system of Ikaria”, IEEE Transactions on Sustainable Energy, Vol. 1(3), pp. 163-172, 2010. DOI:10.1016/j.renene.2014.08.062

Naeras: a pumped-storage clean energy plant on the island of Ikaria, Greece, 6-6-2019. [Online], Available: https://www.e-mc2.gr/el/news/naeras-pumped-storage-clean-energy-plant-island-ikaria-greece

J. Vourdoubas, “Aspects of clean energy transition in the island of Crete, Greece”, American Scientific Research Journal for Engineering, Technology and Sciences, Vol. 81(1), pp. 36-50, 2021. [Online], Available: file:///C:/Users/%CE%B3%CE%B9%CE%B1%CE%BD%CE%BD%CE%B7%CF%82%20%CE%B2%CE%BF%CF%85%CF%81%CE%B4%CE%BF%CF%85%CE%BC%CF%80%CE%B1%CF%82/Downloads/monther,+6993-Article+Text-21164-1-6-20210817.pdf

J. Vourdoubas, “Use of renewable energy sources for energy generation in rural areas in the island of Crete, Greece”, European Journal of Environmental and Earth Sciences, Vol. 1(6), pp. 1-7, 2020. DOI https://doi.org/10.24018/ejgeo.2020.1.6.88.

“Tilos” – Technology innovation for the local scale optimum integration of battery energy storage, Horizon 2020- Low carbon energy – local small-scale storage, LCE-08- 2014. [Online], Available: https://www.tiloshorizon.eu/images/deliverables/TILOS-Flyer_EN.pdf

J.K. Kaldellis, “Supporting the clean electrification for remote islands: The case of the Greek Tilos island”, Energies, Vol. 14, pp. 1336, 2021. https://doi.org/10.3390/en14051336

Wind-pumped-hydro power station of El Hierro, FEDARENE, 2022. [Online], Available: https://fedarene.org/best-practice/wind-pumped-hydro-power-station-of-el-hierro/

G. Frydrychowicz-Jastrzebska, “El Hierro renewable energy hybrid system: A tough compromise”, Energies, Vol. 11, pp. 2812, 2018. doi:10.3390/en11102812

Best practice - Renewables networking platform, 100% Renewable island, El Hierro, Spain, 2021. [Online], Available: https://ec.europa.eu/info/sites/default/files/research_and_innovation/funding/documents/ec_rtd_island-prize-elhierro.pdf

European Commission, “Responsible island Prize, Island of El Hierro”, 2nd winner of the 2020 REsponsible island prize. [Online], Available: https://ec.europa.eu/info/sites/default/files/research_and_innovation/funding/documents/ec_rtd_island-prize-elhierro.pdf

R. Godina, E.M.G. Rodrigues, J.C.O. Matias, & J.P.S. Catalao, “Sustainable energy system of El Hierro island”, in the International Conference on Renewable Energies and Power Quality, La Coruna, Spain, 25th-27th March 2015. [Online], Available: https://www.icrepq.com/icrepq'15/232-15-godina.pdf

S. Skroufouta, & E. Baltas, “Investigation of hybrid renewable energy system (HRES) for covering energy and water needs on the island of Karpathos in Aegean Sea”, Renewable Energy, Vol. 173, pp. 141-150, 2021. https://doi.org/10.1016/j.renene.2021.03.113

G.P. Giatrakos, T.D. Tsoutsos, P.G. Mouvhtaropoulos, G.D. Naxakis, & G. Stavrakakis, “Sustainable energy planning based on a stand-alone hybrid renewable energy/hydrogen power system: Application in Karpathos island, Greece”, Renewable Energy, Vol. 34(12), pp. 2562-2570, 2009. doi:10.1016/j.renene.2009.05.019

D.A. Katsaprakakis, D.G., Christakis, K. Pavlopoulos, S. Stamataki, I. Dimitrelou, I. Stefanakis, & P. Spanos, “Introduction of a wind powered pumped storage system in the isolated insular power system of Karpathos-Kasos”, Applied Energy, Vol. 97, pp. 34-48, 2012. DOI: 10.1016/j.apenergy.2011.11.069

N.M. Katsoulakos, “An overview of the Greek islands autonomous electrical systems: proposals for a sustainable energy future”, Smart Grid and Renewable Energy, Vol. 10, pp. 55-82, 2019. DOI:10.4236/sgre.2019.104005

E-M. Agapiou, “Energy strategy for Karpathos island”, M.Sc. Thesis, University of Athens, Greece, 2012 (in Greek). [Online], Available: https://dspace.lib.ntua.gr/xmlui/bitstream/handle/123456789/7469/agapiou_Energy.pdf?sequence=1&isAllowed=y

I. Kougias, K. Bodis, A. Jager-Waldau, F. Monforti-Ferrario, & S. Szabo, “Exploiting existing dams for solar-PV installations”, Progress in Photovoltaics, Vol. 24(2), pp. 229-239, 2015. https://doi.org/10.1002/pip.2640

M. Elshafei, A. Ibrahim, A. Helmy, M. Abdallah, A. Eldeib, M. Badawy, & S. AbdelRazek, “Study of massive floating solar panels over lake Nasser”, Hindawi, Journal of Energy, article ID 6674091, 2021. https://doi.org/10.1155/2021/6674091

V. Yashas, A. Bagrecha, & S. Dhanush, “Feasibility study of floating solar panels over lakes in Bengaluru City”. Proceedings of the Institution of Civil Engineers – Smart Infrastructure and Construction, 2021. https://doi.org/10.1680/jsmic.21.00002a

S-M. Kim, M. Oh, & H-D Park, “Analysis and prioritization of the floating Photovoltaics system potential for reservoirs in Korea”, Applied Science, Vol. 9, p. 395, 2019. doi:10.3390/app9030395

M. Lopez, F. Soto, & Z.A. Hernandez, “Assessment of the potential of floating solar photovoltaic panels in bodies of water in mainland Spain”, Journal of Cleaner Production, Vol. 340, pp. 130752, 2022. https://doi.org/10.1016/j.jclepro.2022.130752

D. Mathijssen, B. Hofs, E. Spierenburg-Sack, R. van Asperen, B. van der Val, J. Vreeburg, & H. Ketelaars, “Potential impact of floating solar panels on water quality in reservoirs; pathogens and leaching”, Water Practice and Technology, Vol. 15(3), pp. 807-811, 2020. doi: 10.2166/wpt.2020.062

E.M.G. Rodrigues, R. Godina, S.F. Santos, A.W. Bizuayehu, J. Contresas, & J.P.S. Catalao, “Energy storage systems supporting increased penetration of renewables in islanded systems”, Energy, Vol. 75, pp. 265-280, 2014. https://doi.org/10.1016/j.energy.2014.07.072

H.A. Behabtu, M. Messagie, Th. Coosemans, M. Berecibar, K.A. Fante, A.A. Kebede & J.V. Mierlo, “A review on energy storage technologies’ application potentials in renewable energy sources grid integration”, Sustainability, Vol. 12, pp. 10511, 2020. doi:10.3390/su122410511.

G. Fuchs, B. Lunz, D.U. Sauer & M. Leuthold, “Technology overview of electricity storage, overview of the potential and on the deployment perspectives of electricity storage technologies”, Technical Report, Smart Energy for Europe Platform, 2012. [Online]. Available: https://sei.info.yorku.ca/files/2013/03/Sauer2.pdf




How to Cite

John Vourdoubas. (2022). Possibilities of Creating a Energy System Based on Renewable Energies in Karpathos Island, Greece. American Scientific Research Journal for Engineering, Technology, and Sciences, 89(1), 124–138. Retrieved from https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/7908