نتایج جستجو برای: clean energy

تعداد نتایج: 692008  

2017
Noah Kittner Felix Lill Daniel M. Kammen

The clean energy transition requires a co-evolution of innovation, investment, and deployment strategies for emerging energy storage technologies. A deeply decarbonized energy system research platform needs materials science advances in battery technology to overcome the intermittency challenges of wind and solar electricity. Simultaneously, policies designed to build market growth and innovati...

Journal: :Science 2017
Barack Obama

Follow this and additional works at: http://digitalcommons.unl.edu/usdoepub Part of the Bioresource and Agricultural Engineering Commons, Climate Commons, Environmental Engineering Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Natural Resource Economics Commons, Natural Resources and Conservation Commons, Oil, Gas, and Energy Commons, Other C...

2009
Akito Takahashi

Clean distributable energy source is expected to develop for the sustainable societies in the 21 century. Recent research development of condensed matter nuclear science (CMNS), which is the descendant new research filed of past controversial “cold fusion” saga, is now revealing the new possibility of potential clean nuclear energy in portable size devices, although the stage of research is sti...

Journal: :Chemical Society reviews 2014
Noemi Linares Ana M Silvestre-Albero Elena Serrano Joaquín Silvestre-Albero Javier García-Martínez

Alternative energy technologies are greatly hindered by significant limitations in materials science. From low activity to poor stability, and from mineral scarcity to high cost, the current materials are not able to cope with the significant challenges of clean energy technologies. However, recent advances in the preparation of nanomaterials, porous solids, and nanostructured solids are provid...

2001
Marilyn A. Brown Mark D. Levine Walter Short Jonathan G. Koomey

This paper summarizes the results of a studyFScenarios for a Clean Energy FutureFthat assess how energy-efficient and clean energy technologies can address key energy and environmental challenges facing the US. A particular focus of this study is the energy, environmental, and economic impacts of different public policies and programs. Hundreds of technologies and approximately 50 policies are ...

2017
R. Eggert

— Modern engineered materials, components and systems depend on raw materials whose properties provide essential functionality to these technologies. Some of these raw materials are subject to supply-chain risks, and such materials are known as critical materials. This paper reviews corporate, national and world perspectives on material criticality. It then narrows its focus to studies that ass...

2012
Robert Pollin

This paper considers policies for promoting productive investments in the USA, especially as regards the project of building a clean energy economy. The four main policies examined are (i) expanding public investments throughout the economy and gaining the crowding-in benefits that will accrue from such investments, (ii) refocusing the successful but ad hoc, US model of industrial policies, (ii...

2012

Basic approaches typically include spreadsheet-based analyses that use emissions factor relationships or other assumptions to estimate reductions. Sophisticated approaches are usually more complex and involve dynamic electricity or energy system representations that predict energy generation responses to policies and calculate the effects on emissions.* 4.2.2 QUANTIFY AIR AND GHG EMISSION REDUC...

ژورنال: انرژی ایران 2019

With population growth and progress of human society and human life needs to energy sources and also environmental pollution caused by fossil fuels, many countries are looking to use clean energy sources. Wind energy is one of them. In this paper was to evaluate the potential of wind energy in Yazd city. After review and analysis of meteorological data from 2011 to 2014 by software, the annual ...

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