It is a hard topic, as it will depend on things like life-cycle analysis of network devices, but if you google a bit, all reports are in the 7-12% range. Aroun

It is a hard topic, as it will depend on things like life-cycle analysis of network devices, but if you google a bit, all reports are in the 7-12% range. Around 10% of the world’s total electricity consumption is being used by the internet, according to a recent research report from Swedish KTH. [https://insidescandinavianbusiness.com/article.php?id=356 https://insidescandinavianbusiness.com/article.php?id=356] Our best-case analysis shows a decline in consumption from 7.4% in 2012 to 6.9% of total global electricity consumption in 2017; however the worst-case shows a rise to 12.0% driven primarily by expansion of the network and data-center infrastructure. [https://aran.library.nuigalway.ie/xmlui/handle/10379/3563 https://aran.library.nuigalway.ie/xmlui/handle/10379/3563] See figure (ICT electricity usage 2000kWh).[https://www.nature.com/articles/d41586-018-06610-y https://www.nature.com/articles/d41586-018-06610-y]