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Integration of variable energy sources in energy systems

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dc.contributor.author GUȚU-CHETRUȘCA, Corina
dc.contributor.author BRAGA, Dumitru
dc.date.accessioned 2022-08-04T09:49:34Z
dc.date.available 2022-08-04T09:49:34Z
dc.date.issued 2022
dc.identifier.citation GUȚU-CHETRUȘCA, Corina, BRAGA, Dumitru. Integration of variable energy sources in energy systems. In: Journal of Engineering Science. 2022, V. 29, N. 2, pp. 54-61. ISSN 2587-3474, eISSN 2587-3482. en_US
dc.identifier.issn 2587-3474
dc.identifier.issn 2587-3482
dc.identifier.uri https://doi.org/10.52326/jes.utm.2022.29(2).05
dc.identifier.uri http://repository.utm.md/handle/5014/20596
dc.description.abstract The main global concern in the energy sector is the substitution of fossil fuels and the mitigation of climate change - the transition to the carbon neutrality of the economy. For the power sector, the main solution for this transition is to use hydro, wind and solar energy sources, which have a high energy potential, including in the Republic of Moldova. Variable renewable energy sources, wind and solar, due to their intermittent nature have a significant impact on the power system and the quality of electricity. The necessary measures to reduce the impact of the variability of these sources are presented. The most appropriate measure would be to use pumped storage hydropower plants. The water losses from their accumulation lakes were appreciated. That constitutes approx. 1 ... 2 m3/MWh which is considerably lower than the losses from the Thermal Power Plants with steam turbines. en_US
dc.description.abstract Principala preocupare la nivel mondial în sectorul energetic este substituirea combustibililor fosili și atenuarea fenomenului schimbărilor climatice – tranziția către neutralitate de carbon a economiei. Pentru sectorul electroenergetic principala soluție pentru această tranziție constă în utilizarea surselor hidro, eoliene și solare de energie, care au un potențial energetic înalt, inclusiv în Republica Moldova. Sursele regenerabile variabile de energie, eoliene și solare, din cauza caracterului intermitent au impactul semnificativ asupra sistemului electroenergetic și calității energiei electrice. Sunt prezentate măsurile necesare pentru diminuarea impactului variabilității acestor surse. Măsura mai potrivită ar fi folosirea Centralelor Hidroelectrice cu Acumulare prin Pompare. S-au apreciat pierderile de apă din lacurile de acumulare ale acestora. Ele constituie cca. 1...2 m3/MWh ceea ce este considerabil inferior pierderilor din Centralele Termoelectrice cu turbine cu abur. en_US
dc.language.iso en en_US
dc.publisher Technical University of Moldova en_US
dc.relation.ispartofseries Journal of Engineering Science;2022, V. 29, N. 2
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject renewable energy sources en_US
dc.subject hydropower plants en_US
dc.subject surse regenerabile de energie en_US
dc.subject centrale hidroelectrice cu acumulare prin pompare en_US
dc.title Integration of variable energy sources in energy systems en_US
dc.title.alternative Integrarea surselor de energie variabile în sisteme energetice en_US
dc.type Article en_US


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