Energy

2012 ◽  
Author(s):  
José Goldemberg
Keyword(s):  
Renewable Energy ◽  
Smart Grids ◽  
Carbon Capture ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Carbon Capture And Storage ◽  
Energy System ◽  
Renewable Energy Resources ◽  
Available Energy ◽  
World Energy

Without a doubt, the topic of energy--from coal, oil, and nuclear to geothermal, solar and wind--is one of the most pressing across the globe. It is of paramount importance to policy makers, economists, environmentalists, and industry as they consider which technologies to invest in, how to promote use of renewable energy sources, and how to plan for dwindling reserves of non-renewable energy. In Energy: What Everyone Needs to Know, José Goldemberg, a nuclear physicist who has been hailed by Time magazine as one of the world's top "leaders and visionaries on the environment," takes readers through the basics of the world energy system, its problems, and the technical as well as non-technical solutions to the most pressing energy problems. Addressing the issues in a Q-and-A format, Goldemberg answers such questions as: What are wind, wave, and geothermal energy? What are the problems of nuclear waste disposal? What is acid rain? What is the greenhouse gas effect? What is Carbon Capture and Storage? What are smart grids? What is the Kyoto Protocol? What is "cap and trade"? The book sheds light on the role of population growth in energy consumption, renewable energy resources, the amount of available energy reserves (and when they will run out), geopolitical issues, environmental problems, the frequency of environmental disasters, energy efficiency, new technologies, and solutions to changing consumption patterns. It will be the first place to look for information on the vital topic of energy.

scholarly journals Assessing Renewable Energy Sources for Electricity (RES-E) Potential using a CAPM-Analogous Multi-Stage Model

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3599 ◽  
Author(s):  
Martinez-Fernandez ◽  
deLlano-Paz ◽  
Calvo-Silvosa ◽  
Soares
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Carbon Capture ◽  
Renewable Energy Sources ◽  
Carbon Capture And Storage ◽  
Offshore Wind ◽  
Energy Sources ◽  
Low Carbon ◽  
Multi Stage ◽  
The Cost

Carbon mitigation is a major aim of the power-generation regulation. Renewable energy sources for electricity are essential to design a future low-carbon mix. In this work, financial Modern Portfolio Theory (MPT) is implemented to optimize the power-generation technologies portfolio. We include technological and environmental restrictions in the model. The optimization is carried out in two stages. Firstly, we minimize the cost and risk of the generation portfolio, and afterwards, we minimize its emission factor and risk. By combining these two results, we are able to draw an area which can be considered analogous to the Capital Market Line (CML) used by the Capital Asset Pricing model (CAPM). This area delimits the set of long-term power-generation portfolios that can be selected to achieve a progressive decarbonisation of the mix. This work confirms the relevant role of small hydro, offshore wind, and large hydro as preferential technologies in efficient portfolios. It is necessary to include all available renewable technologies in order to reduce the cost and the risk of the portfolio, benefiting from the diversification effect. Additionally, carbon capture and storage technologies must be available and deployed if fossil fuel technologies remain in the portfolio in a low-carbon approach.

scholarly journals ANALYSIS OF WAYS FOR DECARBONIZATION OF THE EU HEATING SECTOR (REVIEW)

2020 ◽  
Vol 42 (4) ◽  
pp. 93-101
Author(s):  
T.A. Zheliezna ◽  
A.I. Bashtovyi
Keyword(s):  
Renewable Energy ◽  
Heat Supply ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
District Heating ◽  
Energy Transition ◽  
Energy System ◽  
Green Energy ◽  
Heating Systems ◽  
The Eu

The aim of the work is to analyze possible ways of decarbonization of the EU heat supply sector. The task of the work is to identify the most promising areas and develop appropriate recommendations for Ukraine. The heat supply sector of the EU and Ukraine needs decarbonization, for which there is a big potential and different areas of implementation of relevant measures. In Europe, such a strategy is set out in the Roadmap for decarbonization of the EU heating sector until 2050, the main provisions of which are in line with objectives of the European Green Deal and the EU Strategy on Heating and Cooling. European experts have developed the concept of a smart energy system, which was taken into account when preparing the Roadmap for decarbonization of the EU heating sector until 2050. A number of carried out studies have shown that a smart energy system with 50% district heating integrated with other parts of the overall energy system is more efficient than a conventional energy system or the one based on decentralized heat supply, in terms of the possibility of using a high share of renewable energy. It is recommended for Ukraine to finalize the Concept of green energy transition until 2050, taking into account European approaches to the development of heating systems and the use of modern biofuels. It is also recommended to expand the current Concept of heat supply of Ukraine to the level of a strategy with an emphasis on the development of district heating systems, wide involvement of renewable energy sources and new technologies.

Uloga i značaj Zajednica obnovljivih izvora energije u energetskoj tranziciji – neka zapažanja

2021 ◽  
Vol XXIII (4) ◽  
pp. 64-69
Author(s):  
Goran Rimac
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
New Technologies ◽  
Production Systems ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Local Energy ◽  
Eu Directive ◽  
Decentralized Energy

Until recently, the prevailing idea was that for the functioning of the energy system it is necessary to be composed of large plants and for energy to move from the centre of production to cities and places of consumption. With the advent of decentralized energy production systems and new technologies for their use, the original model is changing more and more. EU Directive 2018/2001 on the promotion of the use of renewable energy sources (RES) designates “prosumers”, i.e. at the same time both producers and consumers of renewable energy, as well as RES communities, while EU Directive 2019/944 introduced the term “citizen energy communities”, i.e. civil energy communities, provided that this Directive, in addition to the distributive production of electricity from RES, also includes electricity from other sources. EU member states are obliged to adopt their own regulations regarding the implementation of the directives, and after that the appropriate incentive measures. The Energy Communities initiative offers citizens new opportunities in terms of active involvement in energy issues. As they are decentralized RES-based projects, they promote the practice of sustainable energy production and consumption, as well as energy storage and exchange within the community. Traditionally passive consumer becomes an energy “prosumer”, a co-owner of a RES plant and a member of the energy community. There are thousands of so-called RES cooperatives in Europe, which are the most common organizational form of energy communities and can play an important role in the process of decentralization of the energy system. The transition to decentralized energy production has many advantages, namely: the use of local energy sources, increased security of local energy supply, shorter transport distances and reduced losses in energy transmission, encouraging community development and creating local jobs. The purpose of this paper is to bring closer to the general public in Serbia the concept of energy communities, what they are and what their role is, with most of the work dealing with energy communities in the EU.

scholarly journals Study On Hybrid Systems, Grid Integrated Based On Renewable Energy Systems Driving Local Loads

2019 ◽  
Vol 5 (7) ◽  
pp. 5
Author(s):  
Satyam Kumar Prasun ◽  
Sanjeev Jararia
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Energy System ◽  
Energy Sources ◽  
Local Loads ◽  
World Energy ◽  
Electricity Power ◽  
Day By Day

The demand for electricity power is increasing day by day, which cannot be met  with  the satisfied  level without  non-renewable energy  resource. Renewable  energy sources  such as wind,  solar are universal and  ecological. These renewable energy  sources are best options to fulfill the world energy demand, but unpredictable due to natural conditions. The use of the hybrid solar and wind renewable energy system like will be the best option forthe utilization  these  available  resources.  The  objective  of  this  paper  is  to  study  the various aspects of hybrid solar and wind system. The application and different theories related to the development of hybrid also discussed in this paper.

Communicating about Carbon Capture and Storage

2017 ◽  
Author(s):  
Amanda Boyd
Keyword(s):  
Renewable Energy ◽  
Carbon Capture ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Carbon Capture And Storage ◽  
Ghg Emissions ◽  
Effective Communication ◽  
Local Health ◽  
Strong Impact ◽  
And Storage

Carbon capture and storage (CCS) has emerged as a potential strategy for reducing greenhouse gas (GHG) emissions. It involves the capture of carbon dioxide (CO2) emissions from large point source emitters, such as coal-fired power plants. The CO2 is transported to a storage location, where it is isolated from the atmosphere in stable underground reservoirs. CCS technology has been particularly intriguing to countries that utilize fossil fuels for energy production and are seeking ways to reduce their GHG emissions. While there has been an increase in technological development and research in CCS, some members of the public, industry, and policymakers regard the technology as controversial. Some proponents see CCS as a climate change mitigation technology that will be essential to reducing CO2 emissions. Others view CCS as an environmentally risky, complex, and expensive technology that is resource-intensive, promotes the continued extraction of fossil fuels, and competes with renewable energy investments. Effective communication about CCS begins with understanding the perceptions of the general public and individuals living in the communities where CCS projects are sited or proposed. Most people may never live near a CCS site, but may be concerned about risks, such as the cost of development, environmental impacts, and competition with renewable energy sources. Those who live near proposed or operational projects are likely to have a strong impact on the development and deployment of CCS. Individuals in locally affected communities may be more concerned about disruptions to sense of place, impact on jobs or economy, or effect on local health and environment. Effective communication about the risks and benefits of CCS has been recognized as a critical factor in the deployment of this technology.

The Fourth Energy Transition and Development of Energy Sector in Kazakhstan

2020 ◽  
Vol 9 (3) ◽  
pp. 735
Author(s):  
Assem S. BAKTYMBET ◽  
Saule S. BAKTYMBET ◽  
Rakymzhan K. YELSHIBAYEV ◽  
Galiya S. UKUBASSOVA ◽  
Aisara S. BAKTYMBET
Keyword(s):  
Renewable Energy ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy Transition ◽  
Energy System ◽  
Energy Sector ◽  
Energy Industry ◽  
Energy Sources ◽  
Global Energy ◽  
The World

The relevance of the subject matter is conditioned upon the fact that currently the main direction of global energy development is already clearly visible: under the influence of changes in energy policy and the development of new technologies, the world is entering the stage of the fourth energy transition to the widespread use of renewable energy sources and displacement of fossil fuels. The development of Kazakhstan's economy requires the transition of energy towards clean and safe renewable sources, which will let the country build a new strong economy and break out of the long-running socio-economic decline, help the international community solve the problem of climate change and improve the safety and welfare of its citizens. The purpose of the study: The purpose of the paper is to develop recommendations for the development of Kazakhstan's energy industry at a new stage in the fundamental transformation of the global energy system. Leading approach to researching the problem. The leading methods of researching the problems of the paper include the analysis of theoretical sources, analysis of statistics, and comparison. Analysis of statistical indicators plays a crucial role in the study, since data on the development of Kazakhstan's energy industry can be directly obtained from statistical databases. The results of the study. The paper discusses the essence of the fourth energy transition, its main aspects, explores renewable energy sources, identifies the features and problems of Kazakhstan's energy industry, and develops ways to solve them. Prospects for further research. To implement the modern provisions of the fourth energy transition in Kazakhstan, it is necessary to use a systematic approach. The basic elements of such a transition are the introduction of renewable energy and energy efficiency (the intensification of reducing the energy intensity of goods and services). The materials of the paper are of practical value for the development of Kazakhstan’s energy during the period of fundamental structural transformations of the world energy sector.  

scholarly journals The Social Aspects and Public Acceptance of Biomass Giving the Example of a Hungarian Region

2012 ◽  
Vol 1 (2) ◽  
pp. 39-43
Author(s):  
Zoltán Bujdosó ◽  
Csaba Patkós ◽  
Tibor Kovács ◽  
Zsolt Radics ◽  
Zoltán Baros
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Biomass Energy ◽  
Public Acceptance ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
The Public ◽  
The Social ◽  
Major Factors

Biomass energy sources are the most promising, and most heavily subsidized renewable energy sources. The future of biomass energy in the global energy system depends on on many major factors, among others on the attitude of society to the biomass energy and the renewable energy resources. The purpose of the paper is to analyze the opportunities of utilization of biomass energy sources giving example of a Hungarian study area furthermore to study the public acceptance of renewable energy sources in a certain region. The study aims to explore the general knowledge, innovative attitude, acceptance and willingness of application as well as the estimation of the benefits of the use of RES within the inhabitants. Data collection has carried out by primary (questionnaire survey) and secondary ways in order to gain deep information from the target group (local people). The conclusion we can drawn from the analysis is that society take the biomass energy into consideration and its importance and responsibility is increasing. As far as the consciousness is concerned, the knowledge and the environmental friendly approach of inhabitants are also sufficient.

scholarly journals The present and the future of Russian renewable energy in the green economy transition

2021 ◽  
Vol 250 ◽  
pp. 08003
Author(s):  
Elena Tarkhanova ◽  
Elena Lyapuntsova ◽  
Natalia Baburina ◽  
Anhelica Fricler
Keyword(s):  
Renewable Energy ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Green Economy ◽  
Utility Company ◽  
The Future ◽  
Developing Area ◽  
Innovation Economy ◽  
Paris Climate Agreement

In the recent years, renewable energy is the most actively developing area in the energy industry. The energy decarbonization and the desire to meet the Paris Climate Agreement criteria are the dominant motives of this development. Climate and energy policies, new technologies, changing prices for gas, coal and carbon, the growth of renewable energy sources continue to challenge operators, developers and utility company in energy system. Our article is devoted to these problematic issues. They are related to the renewable energy development. It is a promising direction of “green” growth around the world, including Russia. We discuss the latest trends and developments in the field of renewable energy in Russia in the conditions of global challenges. In addition, we extrapolate possible directions for the renewable energy growth in the future. Our results can be interesting and useful for researchers and experts in the strategic management field, spatial development, innovation economy and some stakeholders involved in the environment and energy system.

scholarly journals Evaluation of DC-DC converter using renewable energy sources

2020 ◽  
Vol 11 (4) ◽  
pp. 1918
Author(s):  
Rajapandian B ◽  
Sundarrajan G.T
Keyword(s):  
Renewable Energy ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Switching Losses ◽  
High Output Voltage ◽  
Intelligent Methods ◽  
The Cost ◽  
High Output

This work analyses and evaluates the performance of renewable energy sources-based converters using Intelligent techniques. The objective of the research is to maintain the reliability of the converters such that it decreases the switching losses, high duty cycle and recycles the leakage energy. To accomplish the high output voltage gain converters are designed with different intelligent methods. Due to heavy demands, the cost of fossil fuel has gone up.so the need for the time is identifying and developing renewable energy sources along with developing new technologies for energy saving in renewable energy system to fight the issues plaguing the environment.

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