scholarly journals Challenges in the Development of Hydropower in Selected European Countries

Proceedings ◽  
2020 ◽  
Vol 51 (1) ◽  
pp. 8
Author(s):  
Paweł Tomczyk ◽  
Mirosław Wiatkowski

Hydropower (HP) in Europe is playing an increasingly important role. Its share in final energy consumption varies from country to country, which is associated with different challenges for each of them. This article presents the challenges of HP development in three countries with a diversified domestic share, i.e., Albania (100% share in 2019), Slovenia (25.7%) and Estonia (0.3%). Particular attention was paid to issues of rational management of water resources in conjunction with the objectives of nature protection and European energy policy. As a result of the analysis, the following challenges in the development of HP were identified: the need to modernize the current HP network, conflicts related to the implementation of HP projects in naturally valuable areas, dependence on external electricity supply due to adverse environmental conditions, problems with the diversification of energy sources and lack of cooperation between environments representing different interests. The countries described have different local specificities; therefore, the challenges in the development of HP are different in each of them. The key to solving them is especially mutual cooperation between various environments, integration of energy markets and diversification of used energy sources, with an indication of renewable energy sources (RES). This will enable harmonious development of each country. Furthermore, it cannot be clearly determined whether the assumed objectives of EU energy policy will be achieved. Achieving these goals is possible because the share of RES in final energy consumption in the countries described is growing.

2018 ◽  
Vol 40 (4) ◽  
pp. 75-82
Author(s):  
S.V. Radchenko

Purpose of the paper is to analyze the available statistical data on fuel consumption by population in every region of Ukraine. To identify similarities and differences in development trends the comparison of structure of final energy consumption in Ukraine and the world was done. The degree of distribution of individual heating systems in urban settlements and rural areas in 2015 is determined. Analysis of the use of the main types of fuel by households sector in regions of Ukraine is performed. The amount of fuel consumed by the population does not linearly depend on the share of individual heating systems in the region (this was shown by an example), therefore to develop strategy for extending the use of renewable energy sources (RES) in the households more factors will need to be considered. Ukrainian and world energy balance data for 2015 (item “Other” which includes residential sector, commerce and public services, agriculture, fishing, other consumers) on the consumption of four main types of fuel (coal and peat, oil products, natural gas, biofuels and waste) were compared. It was concluded that in Ukraine the proportion of basic fuels consumption corresponds to world trends. However, after analyzing the distribution of total final energy consumption certain differences were observed. Analysis of renewable energy sources use by sectors has demonstrated that the residential sector is the leader in renewable energy sources consumption both in the world and in Ukraine. In Ukraine statistical data on biofuel consumption is mainly based on information about firewood and wood biomass consumption. This explains the higher percentage of biofuel consumption in forested areas. It should also be noted that in Ukraine 32% of the wood used by population was sold to households by enterprises and 68% was obtained from self-preparation. Over the past decade consumption of biomass fuel for household needs in Ukraine has doubled, and it is increasingly replacing coal fuel, thus exerting a positive impact on the environment.


2018 ◽  
Vol 25 (1) ◽  
Author(s):  
Rita Bužinskienė

There have been many discussions in Lithuania about a strategy for reducing the impact of climate change. Members of the international community agree that reducing greenhouse gas emissions to the atmosphere is necessary to avoid dangerous climate change. The main greenhouse gas emissions from human activity are carbon dioxide. Carbon dioxide is mainly produced by combustion of fossil fuels, which are currently used: natural gas, coal, oil, peat, etc. Fossil fuels are still the main source of energy. The amount of energy produced and consumption from renewable energy sources (RES) is increasing both in Lithuania and in Europe. According to the Directive (2009/28/EU) Lithuania has a legally binding target in the year 2020. The share of renewable energy would account for at least 23% of the total final energy consumption of the country. The share of renewable energy would account for at least 10% of the final energy consumption in the transport sector. Lithuania achieved its target and this indicator was 23.9% in 2014. According to the Eurostat data, the share of RES produced from renewable energy sources in the total energy balance is increasing annually. In 2007 this indicator was only 4.7% and it has grown 4 times in 2016. The production of electricity from renewable energy sources satisfied the country’s energy demand by 18.9% in Lithuania. This is the best index so far. Wind energy is the most popular type of green energy, which has been growing at a rate of 5 times in this period. Promotion of the use of renewable resources is provided in the Republic of Lithuania Law on Renewable Energy and the long-term development of the use of renewable resources is provided for in the National Energy Strategy. At this moment Lithuania is a fuel importing country, but in the future Lithuania should produce about 70% of electricity itself. It is forecasted that in 2020 electricity generation in the country should make up 35% of the demand, in 2030 it should be 70%, and in 2050 it should reach 100%. From renewables we should receive a large, almost 80% share of energy. And gas will be a transitional fuel by 2050. The project of strategy states that energy from renewable sources will become a major component of all sectors: electricity, heat, cooling and transport. The objective is to achieve a 30% share of renewables in the final energy consumption balance in 2020, 45% in 2030, and 80% in 2050. The renewables should produce all heat energy and the share of green energy in transport should reach 50% at the end of 2050. The article focuses on the use of the potential of renewable energy sources from agricultural raw materials and their waste. The surplus of agricultural production makes it necessary to look for opportunities to reduce environmental pollution. The aim of the article is to assess the use of potential of renewable energy sources in Lithuania. The results of the analysis showed that increasing energy production is possible not only using wind, solar, water or geothermal energy, but by processing traditional agricultural and animal products and their waste: straw, grain crops, livestock or bird’s excrement, etc. It is recommended to look at the unconventional potential of raw materials, such as sewage sludge, spirits, molasses, etc. The use of biomass has potentially revealed alternatives to biofuels that underpin the use of different generations of biofuels. The use of biofuels in the long term should contribute to the slowdown in climate change.


2021 ◽  
Vol 13 (18) ◽  
pp. 10327
Author(s):  
Anca Mehedintu ◽  
Georgeta Soava ◽  
Mihaela Sterpu ◽  
Eugenia Grecu

This article is part of the concerns generated by the need to increase the consumption of renewable energy, so that in the European Union (EU) countries, its share in the final energy consumption, to reach 32% by 2030, increases. In the context in which, in the specialized literature, the analysis of renewable energy consumption by activity sectors is approached very little, such an analysis has high utility. The variables of interest are the share of renewable energy in the final energy consumption, and the share of renewable energy sources in the final energy consumption in transport, electricity, and heating and cooling. The study performs a comparative analysis of the evolution of these indicators for the period 2004–2019 for Romania and the EU, an empirical estimate of the evolution of indicators using time regression and autoregressive models, a forecast of the share of renewable energy consumption in the final energy consumption and by the main sectors (transport, electricity, and heating and cooling) for the 2030 horizon, providing appropriate scenarios for achieving the EU established goals, as well as an analysis of the interdependence between the indicators. Through the results obtained, the paper can contribute to improving the framework for the sustainable development of energy consumption.


Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4261
Author(s):  
Józef Paska ◽  
Tomasz Surma ◽  
Paweł Terlikowski ◽  
Krzysztof Zagrajek

The aim of this paper is to present the state of development of renewable energy sources (RES) in Poland in accordance with the obligations of European Union energy policy. The EU Member States are obliged to adopt different support mechanisms for the development of renewable energy sources, and in consequence to achieve their Directive’s targets. Poland, being a Member State of the EU since 2004, has accepted a target of a 15% share of energy generated from renewable energy sources in final energy consumption, including 19.3% from renewable electricity until 2020. Due to the difficulties with target achievement, the authors found it reasonable to analyze the challenge of RES development in Poland. The article presents energy policy in the EU, as well as the review of measures implemented for renewable energy development. The current state of and perspectives on using renewable energy sources in Poland and in the EU are also depicted. In the article, the authors analyze the relation between reference prices at dedicated RES auctions in Poland and the levelized cost of electricity (LCOE). The paper also provides a description of the renewable energy sources’ development in three areas: electricity, heat and transport biofuels. Its main content, though, refers to the generation of electricity from renewable energy sources.


2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Holub Svitlana ◽  
◽  
Shynkaruk Nataliia ◽  

The article explores the features of the legal regulation of bioenergy in the European Union, analyses the concepts of bioenergy and biofuels in Ukrainian and European legislation and highlights the main provisions of the European Union Directives, concerning the promotion of the use of energy from renewable sources, including biomass. In particular, bioenergy has been identified in the EU as the leading source of renewable energy for heating and cooling (88 per cent of all RES), representing 16 per cent of the total European final energy consumption in this sector. Consequently, in view of the demand for and the need to use such a resource, the EU legislative framework contains a number of principles (bases) and mandates for regulating the relationship in the area of manufacturing, handling and decontamination of waste biofuels as a primary feedstock for bioenergy. In particular, the fundamental principles of the EU bioenergy legislation are, first, the principle of sustainable production and consumption of biomass, and second, the prevention of reduction of negative impacts from the use of this resource, Third, increasing the share of alternative energy sources to 75 % of final energy consumption by 2050. Keywords: bioenergy, permanence, alternative energy sources, biofuels


2021 ◽  
Vol 13 (6) ◽  
pp. 3587
Author(s):  
Miguel Blanco ◽  
Marcos Ferasso ◽  
Lydia Bares

The Renewable Energy Plan for the period 2011–2020 established as a general goal to ensure that renewable sources represent at least 20% of final energy consumption in 2020, together with a minimum contribution of 10% from renewable energy sources in transportation for that year. Then, the goal of this research is to evaluate the effects of the regional production of clean energy, identifying the employment generated in the renewable sector. The adopted methodology was the shift-share analysis, frequently used by researchers to analyze territorial differences. Main results showed important differences, at regional level, in the production of this type of energy. Likewise, we used constant shift and constant share methodology to make a forecast on the evolution of the sector from the data of last published years. Pending the approval of the new Renewable Energy Plan for the period 2021–2030, the results obtained in this research allow the identification of the regions that showed a favorable evolution to the energy change and identifies the projects that generate employment and production in the sector.


Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2864
Author(s):  
Wiesław Musiał ◽  
Monika Zioło ◽  
Lidia Luty ◽  
Kamila Musiał

As a consequence of increasing air pollution, the European Commission has decided to introduce special directives laying down the measures to achieve climate and energy neutrality. Renewable energy (RE) sources play an important role in the pursuit of these goals, which has been taken into account in the 2030 Agenda for Sustainable Development. The aim of this article is to describe patterns and trends in the achievements of the energy policy of European Union (EU) countries in the field of renewable energy in sustainable development. The identification of leaders in this field gives the possibility to analyse actions taken by the governments of these countries and the possible implementation of the introduced solutions on the ground of individual Member States at the regional and national levels. At the beginning Main goal of energy policy on the field of renewable energy sources (RES) is to increase production from environmentally friendly sources that is why trends were determined in order to assess the rate of achievement of the national target for changes the share of energy from renewable sources in total gross energy consumption. Groups of similar countries were then identified on the basis of three indicators corresponding to the targets set in the climate and energy package. In the group of analysed countries, 14 have achieved the 2020 targets and 4 have exceeded the 2030 targets. The main renewable energy sources (RES) are biofuels, wind, and hydropower. In the assessment of the achievement of energy policy targets, the best situation was observed in the case of Denmark, Ireland, and the United Kingdom. These countries have significantly increased the share of renewable energy in total energy consumption. Compared to other EU countries, they have reduced the economy’s energy consumption and greenhouse gas emissions the most.


Author(s):  
Sara Abd Alla ◽  
Vincenzo Bianco ◽  
Sofia G. Simoes

Abstract Megacities are mainly located in developing countries and face challenges in building infrastructures to ensure modern and clean energy access to citizens while coping with lifestyle changes. This paper assesses the renewables impact on energy transition for megacities (supply and all demand sectors) using the Greater Cairo megacity as case study. The MARKAL-EFOM System (TIMES) model is applied to the Greater Cairo region to investigate how energy supply and demand will evolve till 2050, and what are the impacts in terms of final energy consumption, GHG emissions, as well as share of renewable energy sources consumption in total final energy consumption considering two different emissions mitigation caps, namely 50% and 80%. Compared to the business as usual scenario, the final energy consumption decreases of 46 PJ and 57 PJ respectively in the scenarios with the CO2 cap of 50% and 80%. Besides, the TIMES-Greater Cairo shows that the fossil free energy options are limited and thus, in order to meet the emission cap, it is necessary to deploy more energy efficient technologies than in the scenarios without the cap. Transport is the sector with the higher CO2 emissions contribution and the optimization results show that it may lower the environmental impact of 28% by 2050 with the sole deployment of more efficient technologies.


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