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International Energy Agency: 2011 The End of Oil: On the Edge of a Perilous New World: Paul Roberts: 2004 Energy and American Society: Thirteen Myths: Benjamin K. Sovacool and Marilyn A. Brown (editors) 2007 Energy Autonomy: The Economic, Social & Technological Case for Renewable Energy: Hermann Scheer: 2007 Energy Technology Perspectives
Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). About 16% of global final energy consumption comes from renewables, with 10% coming from traditional biomass , which is mainly used for heating , and 3.4% from hydroelectricity .
Green Illusions: The Dirty Secrets of Clean Energy and the Future of Environmentalism (ISBN 978-0-8032-3775-9), by Ozzie Zehner, was published in 2012 by the University of Nebraska Press. It discusses various approaches to "clean energy", and why they do not provide the desired benefits. The author writes: "We don’t have an energy crisis.
Renewable energy often displaces conventional fuels in four areas: electricity generation, hot water/space heating, transportation, and rural (off-grid) energy services. [22] Although almost all forms of renewable energy cause much fewer carbon emissions than fossil fuels, the term is not synonymous with low-carbon energy.
Renewable energy replaces conventional fuels in four distinct areas: electricity generation, air and water heating/cooling, motor fuels, and rural (off-grid) energy services. [2] Based on REN21 's 2014 report, renewables contributed 19 percent to our global energy consumption and 22 percent to our electricity generation in 2012 and 2013 ...
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Solar panels, a tool for harnessing renewable energy Wind turbines, a tool for harnessing renewable energy. Energy engineering is a multidisciplinary field of engineering that focuses on optimizing energy systems, developing renewable energy technologies, and improving energy efficiency to meet the world's growing demand for energy in a sustainable manner.
Energy storage helps overcome barriers to intermittent renewable energy and is an important aspect of a sustainable energy system. [154] The most commonly used and available storage method is pumped-storage hydroelectricity , which requires locations with large differences in height and access to water. [ 154 ]