نتایج جستجو برای: renewable

تعداد نتایج: 34433  

2013
Maria-Isabella Eickenjäger Michael H. Breitner

Fossil fuels in the transport and mobility sector can be replaced with several renewable fuels, such as renewable electricity, hydrogen and biomass-to-liquid. When these alternative fuels are used, aspects such as safeguarding supply, economic efficiency, and environmental protection must be taken into account to ensure sustainable change and to create a sustainable society. We introduce a scen...

2006
Rodolfo Dufo-López José L. Bernal-Agustín Javier Contreras María de Luna

This paper presents a novel strategy, optimized by genetic algorithms, to control stand-alone hybrid renewable electrical systems with hydrogen storage. The strategy optimizes the control of the hybrid system minimizing the total cost throughout its lifetime. The optimized hybrid system can be composed of renewable sources (wind, PV and hydro), batteries, fuel cell, AC generator, and electrolyz...

2008
J. Bebic Ben Kroposki

NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, o...

 This paper studies the non linear relationship between energy prices, natural resources rent opportunities and renewable energy consumption under different economic growth rates for OPEC member countries during the 2005-2016 period.  Using a panel smooth transition regression (PSTR) model, our findings prove a non-linear relationship between renewable energy consumption and the rate of economi...

The limitation of non-renewable resources and the increasing of environmental pollution caused by the accumulative consumption of fossil fuels indicate the necessity of paying attention to renewable sources. The present study analyzes the factors affecting on the quality of the environment with emphasis on the consumption of renewable energy and human capital such as education in developing and...

2013
Abdeen Mustafa Omer

Recently, environmental issues have been the focus of much of the world’s attention. This has stimulated a response in many countries, which has led to a closer examination of energy conservation strategies for conventional fossil fuels. One way of reducing building energy consumption is to design buildings, which are more economical in their use of energy for: heating, lighting, cooling, venti...

2009
Benjamin K. Sovacool

This article explores public opposition to renewable power technologies in the United States. It begins by discussing the genesis of environmental ethics, or how some Americans have come to place importance on the protection of the environment and preservation of species, ecosystems, and the biosphere. As result, renewable power systems have become challenged on ethical and environmental ground...

2013
Amela Ajanovic

Fuels based on renewable energy sources (RES) are considered as an important mean to cope with environmental problems in transport. The core objective of this paper is to investigate the perspectives of “renewable fuels” from economic, energetic and ecological points-of-view in a dynamic framework till 2050. Renewable fuels are various 1 and 2 generation biofuels as well as electricity and hydr...

2017
Sung-Guk Yoon Seok-Gu Kang

Two of the most important technologies for future power systems to reduce greenhouse gas are electric vehicles (EVs) and renewable generation. When EVs become more common, the overall demand of electricity will significantly increase because EVs consume a large amount of electricity. Also, a daily load curve with EVs heavily depends on how much electricity EVs consume and when electricity is co...

2015
Kishore Gawande Devesh Kapur Shanker Satyanath

An interesting stream of the civil conflict literature has identified an important subset of civil conflicts with disastrous consequences, that is, those that emerge as a consequence of shocks to renewable natural resources like land and water. This literature is, however, reliant on qualitative case studies when claiming a causal relationship leading from renewable resource shocks to conflict....

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