Authors: Sangwon Suh, Joseph D. Bergesen , Thomas Gibon, Edgar G. Hertwich, Michael Taptich
 
Publishers: UN Environment and INTERNATIONAL RESOURCE PANEL
 
Abstract
 
This report, the first international assessment of this type, investigates the life-cycle environmental and natural resource implications of large-scale deployment of energy efficiency technologies. The report examines more than 30 demand-side energy efficiency technologies across different technological clusters, including lighting, buildings, information and communication technology, efficient metals processing, high-efficiency co-generation, and transportation. In addition, the combined effects of low-carbon energy supply and deployment of efficient demand-side technologies under the 2 degree and 6 degree Celsius scenarios are assessed. Research confirms that demand-side technologies reduce greenhouse gas emissions as well as many other environmental impacts. However, the magnitude of those improvements varies widely among technologies and regions. In some cases, demand-side technologies  may increase resource consumption and even greenhouse gas emissions. Therefore, it is crucial to understand where, when, and with which technology investment should be placed to maximize benefits.
 

Illustration Photo: Bioclimatic courthouse of Paris uses solar panel and rain water recycling (credits: Jeanne Menjoulet / Flickr Creative Attribution-NonCommercial-NoDerivs 2.0 Generic (CC BY-NC-ND 2.0))

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