电
环境经济学
可再生能源
范围(计算机科学)
发电
温室气体
电力零售
工作(物理)
业务
计算机科学
电信
电力市场
经济
工程类
功率(物理)
电气工程
机械工程
生物
物理
量子力学
程序设计语言
生态学
作者
Anders Andrae,Tomas Edler
出处
期刊:Challenges
[MDPI AG]
日期:2015-04-30
卷期号:6 (1): 117-157
被引量:901
标识
DOI:10.3390/challe6010117
摘要
This work presents an estimation of the global electricity usage that can be ascribed to Communication Technology (CT) between 2010 and 2030. The scope is three scenarios for use and production of consumer devices, communication networks and data centers. Three different scenarios, best, expected, and worst, are set up, which include annual numbers of sold devices, data traffic and electricity intensities/efficiencies. The most significant trend, regardless of scenario, is that the proportion of use-stage electricity by consumer devices will decrease and will be transferred to the networks and data centers. Still, it seems like wireless access networks will not be the main driver for electricity use. The analysis shows that for the worst-case scenario, CT could use as much as 51% of global electricity in 2030. This will happen if not enough improvement in electricity efficiency of wireless access networks and fixed access networks/data centers is possible. However, until 2030, globally-generated renewable electricity is likely to exceed the electricity demand of all networks and data centers. Nevertheless, the present investigation suggests, for the worst-case scenario, that CT electricity usage could contribute up to 23% of the globally released greenhouse gas emissions in 2030.
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