Renewable electricity in Western Balkans: Support policies and current state

Rakić, Nikola; Gordić, Dušan; Šušteršič, Vanja; Josijević, Mladen; Babić, Miroslav

doi:10.2298/tsci180512169r

Cited by 2 publications

(2 citation statements)

References 14 publications

(14 reference statements)

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“…The countries that are not members of the EU, but are members of the Energy Community (EnC) whose key objective is to extend the EU internal energy market rules and principles to countries in South-East Europe, the Black Sea region and beyond, make various analyzes of the possibilities for following these European trends. For example, a vision of transition from a lignite-based energy system is presented in [8] where as a case study Serbia is presented, the decarbonization of the residential building sector of Serbia is analyzed in [9], and the authors in [10] analyze the electricity production from renewable energy sources in the Western Balkans.…”

Section: Introductionmentioning

confidence: 99%

Energy transition of a developing country following the pillars of the EU green deal

et al. 2022

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Utilization of efficient technologies, renovation of buildings and construction of new passive buildings, replacement of coal, natural gas, and nuclear power plants with ?clean? technologies such as photovoltaics and wind, transition to 4-D in industry, and electrification are parts of the objectives set out in the Green Deal of the EU. The Green Deal foresees a transformation to a ?green? economy while maintaining economic growth, as well as creating new ?green? jobs. To meet these goals, each country needs to develop its own strategic documents that will guide the transition, taking into account its own specific conditions, the cur-rent state of the energy sector as well as geographical location. This paper aims to present a vision for the energy transition of a developing country, a member of the Energy Community, and a country that expects to join the EU. The vision of the development of the energy system of North Macedonia foresees a transformation from a system based on fossil fuels, where the share of RES in the gross final energy consumption is about 18%, to a 43% share of RES in 2040, while maintaining import dependence at the current level and guaranteeing the security of energy supply. For exploring the way and the pace at which such a vision can be achieved it is necessary to develop different models and simulations, including different technologies on the generation and consumption side. Such alternatives, packaged in different scenarios, allow policymakers to assess the effects of taking certain actions and the direction in which such decisions will lead.

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Section: Introductionmentioning

confidence: 99%

Energy transition of a developing country following the pillars of the EU green deal

et al. 2022

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“…It is stimulated by raising the prices of conventional energy sources, the striving of individual countries to reduce their dependence on imported energy sources, and implementing the Kyoto Protocol Directives for the reduction of global emissions from greenhouse gases [1]. Hydropower has a very high potential regarding renewable energy sources, and its share in total electricity production from renewable energy sources exceeds 90 % in many countries [2]; however, the remaining potential of high power Hydro Power Plants (HPPs) is very limited, and the possible investors are now focused on small units and other renewable energy sources. Any efficiency improvement of the existing HPP operation also counts to this category, since it increases energy production without any further impact on the environment and with minimal investment cost.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Clogged Hydropower Plant Trash Rack Losses

Hribernik

2020

SV-JME

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A trash rack is applied in front of the turbine to restrict the entrance of significantly sized material present in the water. It obstructs the free flow, and produces energy-losses by generating eddies induced partially by the trash rack bars and partially by the debris collected on it. While the additional static forces due to debris accumulation are considered in the trash rack design process, the debris caused energy losses taking place during plant operation are usually neglected, although a rather simple model was developed to account for them. However, the long term application of this model demands an extensive set of trash rack clogging data and, therefore, no such application has been documented so far. Thus, an analysis was performed to acquire the debris accumulation intensity with time and to evaluate the extra energy losses they caused. Data on one year operation of a hydropower plant aggregate i.e. flow rate and trash rack head losses measured at 15 minute intervals, were acquired and used to build a rack clogging model. Using this model, it was possible to distinguish clearly between debris and rack structure caused head losses, and to analyse different cleaning strategies. It was shown that cumulative debris contributed to almost one half of head losses although the rack was cleaned frequently. This shows clearly that debris caused head losses may not be neglected, moreover, debris removal has to be planned carefully and carried out efficiently. Analyses of acquired data confirmed that incomplete debris removal increased head losses by 18 %, and proved how important regular and thorough rake cleaning is. Moreover, it was found out that the actually applied periodical rake cleaning was not optimal, and that the circumstances required cleaning strategy performed much better. It resulted in similar head losses, while the number of rack cleanings was reduced by 60 %.

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Renewable electricity in Western Balkans: Support policies and current state

Cited by 2 publications

References 14 publications

Energy transition of a developing country following the pillars of the EU green deal

Energy transition of a developing country following the pillars of the EU green deal

Evaluation of Clogged Hydropower Plant Trash Rack Losses

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