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Hourly Data Consumption of Popular Video Conferencing Applications - CableLabs - How much data does a Zoom call use?
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Web Browsing. Video Clip Streaming p. Video Clip Streaming. Instant Messaging. Photo Sharing low-res. Photo Sharing. Voice Calling. Video Calling. The other source mentioned is a report from the WWF which does not provide a specific number, and is 10 years out of date. This is useless unless you know what they actually emitted.
If Zoom is so great for the environment vs the alternatives, you might expect them to provide numbers to prove it. In the absence of Zoom providing any data about the emissions of a video call, we can perform some basic calculations ourselves. Zoom recommends the following bandwidth requirements:. For , the electricity intensity of fixed-line internet data transmission is 0. These figures are per participant which means that a 1 hour conversation could generate 1.
For a group call between 6 people, that could generate 4. At the upper limit, Zoom can support up to 1, participants and has gone up to , in special situations , which could generate a range of — 2,GB of network traffic using Now we know the electricity consumed, we can calculate the emissions. This is where it starts to get more complex because the emissions factor depends on the grid mix in each location.
A very simple calculation could assume that all network transmission remains within a single country. For example, a HD p video meeting of 1 hour between two people would require 3.
The UK electricity emissions factor is 0. Location matters. Note how we are only talking about the network energy consumption between participants in a single location. This is the most basic situation, and things quickly become more complex:. As usual, it depends. In the UK , a medium sized battery electric vehicle generates 0.
We can easily find an example where there are significantly more emissions than a video call, but we could just as easily pick an example to show the opposite e. If the travel distances from our case study are halved, such that the domestic participant travels km and the international participant travels km, the overall energy contribution from the in-person meeting will fall by half to give The travel distances will need to be shortened fold e.
However, these results show that there are certain conditions in which having an in-person meeting is still better than videoconferencing environmentally, especially for high-end telepresences that have a higher energy profile. The potential of teleworking for reducing transportation energy use and GHG emissions also depends on the form of transportation it is replacing. In regions with a high proportion of walking, cycling, and public transportation, the benefit of teleworking is significantly less than in sprawling cities where commuters primarily rely on personal automobiles and with bad congestion.
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