scholarly journals Comparative analysis of energy security in the Nordic countries: The role of renewable energy resources in diversification

2012 ◽  
Vol 4 (6) ◽  
pp. 062701 ◽  
Author(s):  
Alireza Aslani ◽  
Erkki Antila ◽  
Kau-Fui V. Wong
Keyword(s):  
Renewable Energy ◽  
Comparative Analysis ◽  
Energy Security ◽  
Nordic Countries ◽  
Energy Resources ◽  
Renewable Energy Resources

scholarly journals Transformation of energy balances with dominant coal consumption in European economies and Turkey in the years 1990–2017

2019 ◽  
Vol 10 (4) ◽  
pp. 627-647 ◽  
Author(s):  
Izabela Jonek-Kowalska
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Comparative Analysis ◽  
Energy Balance ◽  
Nuclear Energy ◽  
European Countries ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Coal Consumption ◽  
Energy Balances

Research background: Energy policy is closely linked to economic development. Therefore, its optimization is an important issue especially in the contemporary European environmental conditions.  EU regulations enforce a reduction of carbon dioxide emissions and the abandonment of non-renewable energy resources. Instead, they promote renewable energy sources. In this way, new legal and environmental circumstances are becoming the main reason for the transformation of energy balances, which is a real economic and technological challenge. This transformation requires a strategic and effective approach, especially in those countries which until now have used mainly hard coal in the energy sector. Purpose of the article: According to above justification, the main purpose of the article is to identify the strategies for the transformation of energy balances that were implemented in the years 1990–2017 by chosen European countries and Turkey. Methods: The study period covers the years 1990–2017, and the subject of the research at first applies to all European countries, and then to 7 countries selected due to their high share of bituminous coal in energy balance in the first year of the analysis, treated as the initial point of transformation (1990). As a result of this selection, 6 EU members and Turkey with the largest share of coal in energy production in the year 1990 are examined. Particularly, an analysis of the trends in their energy balances in the years 1990–2017 is conducted. The research uses data on non-renewable energy consumption and renewable energy resources and the total energy consumption. The research methodology includes: analysis of the structure and dynamics, evaluation of trends and comparative analysis and presentation of development strategies. At the end of the article, a comparative analysis is carried out, the economic consequences of identified changes are assessed, and recommendations are formulated aimed at optimizing the structure of the energy balance in the future. Findings & Value added: Generally, there are four theoretical and empirical patterns of transformation strategies of energy balances with dominant coal consumption: 1) using other non-renewable energy resources; 2) replacing non-renewable energy resources with renewable ones; 3) using nuclear energy instead of coal; 4) increasing coal consumption as available and efficient energy resource. It was found that the examined countries implement mainly the strategy in which the decreasing share of coal is made up for by an increasing share of gas. Additionally, we can observe an increase in the share of nuclear energy in France, the Czech Republic and the United Kingdom. In Spain and Germany, despite the use of nuclear power plants for the production of energy, the share of nuclear energy in the energy balances has systematically decreased in time. In all analyzed countries, we can also observe an increasing share of renewable sources in energy balances, however, this growth is very slow.

Renewable energy investment in Nigeria: A review of the Renewable Energy Master Plan

2014 ◽  
Vol 25 (3) ◽  
pp. 67-73
Author(s):  
Udochukwu B. Akuru ◽  
Ogbonnaya I. Okoro
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Energy Equation ◽  
Energy Resources ◽  
Master Plan ◽  
Renewable Energy Resources ◽  
Energy Investment ◽  
Long Run ◽  
Recent Developments ◽  
Renewable Energy Investment

Data for investment into renewable energy resources in Nigeria is mainly unavailable due to over reliance on conventional resources for energy generation. However, recent developments in the energy sector have portrayed gradual attention to investments in renewable energy resources. This paper reviews the Renewable Energy Master Plan (REMP) which identifies this improvement and presents a draft on how an increase in investment in renewable energy resources, which will in the long run balance the national energy equation, ensure energy security and promote sustainable development.

scholarly journals CHANGING ENERGY GEOPOLITICS: WHAT IS THE ROLE OF SUSTAINABILITY IN THE GLOBAL ENERGY GEOPOLITICS?

2018 ◽  
Vol 6 (12) ◽  
Author(s):  
Maria Cândida Arrais de Miranda Mousinho ◽  
Ednildo Andrade Torres ◽  
Silvio Alexandre Beisl Vieira de Melo ◽  
Nanda Kumar
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Essential Element ◽  
Physical Space ◽  
Energy System ◽  
Energy Resources ◽  
China And India ◽  
Self Sufficiency ◽  
New Challenges

The act of dominating energy resources undoubtedly permeates the conquest of territories and their respective societies. Energy and geopolitics have always walked conjointly in the process of economic and social development in which societies have been based over the time. The multiplicity of issues that geopolitics gathered helped broaden the spectrum of analysis of geopolitical turning it more complex. This paper has the main objective to contribute for a discussion about the transition from the geopolitics based on the physical space to the geopolitics based on sustainability in which renewable energy has consolidated in the international scenario.  The final considerations highlight the quest for energy security requires more than the quest for energy self-sufficiency itself. In addition, the sustainable paradigm introduced in the geopolitics of energy new challenges as the insertion of renewable energy in a context dominated by traditional sources of energy that provokes a reflection on how the challenges related to geopolitics will be dealt with. In that way, China and India appears as a global players. The choice of cooperative dialogues appears as an essential element in the balance of the energy system.

scholarly journals The Renewable Sources of Energy and the Romanian Energy Security

2018 ◽  
Vol 24 (1) ◽  
pp. 58-64
Author(s):  
Ionuț Alin Cirdei
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Fossil Fuels ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Total Consumption ◽  
Renewable Sources ◽  
Fossil Energy ◽  
Long Time ◽  
Alternative Sources

Abstract Energy security is a matter of particular importance to all the world's states, whether they are producers or consumers of energy resources. For a long time, fossil energy resources have been the only source of energy used on a planetary scale. When mankind realized that fossil energy resources are a finite source of energy and that their intensive use causes many environmental problems, the most important of which is related to global warming, they have tried to find alternative sources of energy. Thus, concerns have arisen about the use of renewable energy on a wider scale, with both individual concerns of states that have potential in this area and collective concerns, such as at EU level, which has proposed by 2020, the share of energy from renewable sources used by the Union states is at least 20% of total consumption. Renewable energy resources may be an alternative to fossil fuels, but at the same time it has a number of limitations and vulnerabilities. Ensuring energy security means a comprehensive approach, understanding of limitations and reducing vulnerabilities

scholarly journals Opportunities of renewable energy use in Hajdú-Bihar and Szabolcs-Szatmár-Bereg counties

2015 ◽  
pp. 143-146
Author(s):  
András Tamás
Keyword(s):  
Renewable Energy ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Environmental Conservation ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Security Of Supply ◽  
Technical Parameters

Today it's an important role of the renewable energy resources, improving energy efficiency, thereby contributing to sustainable, ecofriendly use of local energy resources. Globally intensify the requirements and considerations related to environmental conservation. In this light, the main objective of the Hungarian energy concept is to maintain long-term security of supply, the economy and the environment occurring contradictions. So there is a need for systems that, in compliance with EU environmental directives, acceptable cost level will ensure the desired and expected security of supply. In the study, three companies and other technical parameters of these are examined. For each undertaking, different results were observed. For two undertakings, we are talking about realized investments, in one case a prognosis was examined. All three companies contributed to the requirement of renewable energy sources reaching 13% in Hungary by 2020.

scholarly journals Protagonist of renewable energy in distributed generation: a review

2021 ◽  
Author(s):  
Vivek Saxena
Keyword(s):  
Renewable Energy ◽  
Distributed Generation ◽  
Demand Response ◽  
Renewable Resources ◽  
Fossil Fuel ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Efficient Utilization ◽  
Response Scheme

In the present scenario, world is progressing in the direction of energy crisis and severe ecological concerns due to the excessive utilization of non-renewable resources. Fossil fuel reserves are inadequate and produce hazardous geological contamination throughout the energy extraction. To meet such challenges, active amalgamation of renewable energy resources (RER) with distributed generation (DG) is the only way to progressing in future. Demand response scheme and battery storage is also essential for the reliable and consistent energy generation and efficient utilization. The role of RER in the evolution of DG is presented in this paper. The objective of this paper is to evaluate the barricades, reimbursements and influence of renewable energy based DG planning and framework. Moreover, a comparative assessment of renewable DG optimization based on optimization criteria and enhanced outcomes are evaluated for this futuristic atmospheric friendly approach.

scholarly journals Techno-Economic Comparative Analysis of Renewable Energy Systems: Case Study in Zimbabwe

Inventions ◽  
2020 ◽  
Vol 5 (3) ◽  
pp. 27 ◽  
Author(s):  
Loiy Al-Ghussain ◽  
Remember Samu ◽  
Onur Taylan ◽  
Murat Fahrioglu
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Energy Security ◽  
Energy Systems ◽  
Economic Feasibility ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Levelized Cost Of Electricity ◽  
Renewable Energy Systems

Fluctuations in fossil fuel prices significantly affect the economies of countries, especially oil-importing countries, hence these countries are thoroughly investigating the increase in the utilization of renewable energy resources as it is abundant and locally available in all the countries despite challenges. Renewable energy systems (RES) such as solar and wind systems offer suitable alternatives for fossil fuels and could ensure the energy security of countries in a feasible way. Zimbabwe is one of the African countries that import a significant portion of its energy needs which endanger the energy security of the country. Several studies in the literature discussed the feasibility of different standalone and hybrid RES either with or without energy storage systems to either maximize the technical feasibility or the economic feasibility; however, none of the studies considered maximizing both feasibilities at the same time. Therefore, we present a techno-economic comparison of standalone wind and solar photovoltaic (PV) in addition to hybrid PV/wind systems based on maximizing the RES fraction with levelized cost of electricity (LCOE) being less than or equal to the local grid tariff where Gwanda, Zimbabwe, is the case study. The methodology suggested in this study could increase the utilization of renewable energy resources feasibly and at the same time increase the energy security of the country by decreasing dependency on imported energy. The results indicate that the PV/wind hybrid system does not only have the best economic benefits represented by the net present value (NPV) and the payback period (PBP), but also the best technical performance; where the maximum feasible size of the hybrid system-2 MW wind and 1 MW PV-has RES fraction of 65.07%, LCOE of 0.1 USD/kWh, PBP of 3.94 years, internal rate of return of 14.04% and NPV of 3.06 × 106 USD. Having similar systems for different cities in Zimbabwe will decrease the energy bill significantly and contribute toward the energy security of the country.

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