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Model, estimate or measure? What matters in video energy use
Analyzing the difference between energy and power estimates from software models vs a hardware analyzer in video communications.
Mar 16
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David Mytton
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Model, estimate or measure? What matters in video energy use
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Overestimating data center public health costs
Energy & carbon aren’t the only environmental impacts of computing, but are the public health impacts overstated?
Mar 1
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David Mytton
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Overestimating data center public health costs
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February 2025
If only data centers would participate in demand response
Even for AI training workloads, data center demand response remains an academic exercise - intriguing but impractical.
Feb 22
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David Mytton
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If only data centers would participate in demand response
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How useful is GPU manufacturer TDP for estimating AI workload energy?
Manufacturer provided Thermal Design Power (TDP) figures are often used to estimate energy consumption of GPU AI workloads, but how useful are they?
Feb 13
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David Mytton
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How useful is GPU manufacturer TDP for estimating AI workload energy?
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Data center energy and AI in 2025
Global data center energy consumption was 240-340 TWh in 2022, but AI is now a major driver of future projections. An update on the 2024 US Data Center…
Feb 9
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David Mytton
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Data center energy and AI in 2025
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June 2024
Network energy use not directly proportional to data volume
It is commonly assumed that data volume and network energy consumption are directly proportional, a notion perpetuated by numerous studies and media…
Jun 24, 2024
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David Mytton
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Network energy use not directly proportional to data volume
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January 2024
Expect more overestimates of AI energy consumption
We’ve started to see AI doomerism spread to predictions of the vast quantity of energy AI is undoubtably going to consume.
Jan 2, 2024
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David Mytton
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Expect more overestimates of AI energy consumption
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July 2023
Paper Notes - ICT sector electricity consumption and greenhouse gas emissions 2020
An updated look at the total electricity consumption and associated GHG emissions for the ICT sector in 2020. Paper notes on Malmodin et al. (2023).
Jul 22, 2023
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David Mytton
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Paper Notes - ICT sector electricity consumption and greenhouse gas emissions 2020
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April 2023
Overestimating AI's water footprint
Researchers need to be more careful about the inputs into their models. Overestimates undermine the goal of reducing the environmental impact of IT.
Apr 17, 2023
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David Mytton
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Overestimating AI's water footprint
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March 2023
Paper Notes - The world wide web of carbon
Will we ever be able to accurately assess the carbon footprint of IT? Could a relational footprint methodology be more useful? Paper notes on Pasek et…
Mar 26, 2023
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David Mytton
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Paper Notes - The world wide web of carbon
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Improving the accuracy of the GHG protocol in time and space
The GHG Protocol needs to evolve to better represent the complexity of how energy markets work.
Mar 17, 2023
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David Mytton
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Improving the accuracy of the GHG protocol in time and space
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February 2023
Influencing the carbon emissions of AI
There is a correlation between the training time and energy consumption, but that doesn’t mean there is a correlation between training time and carbon…
Feb 27, 2023
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David Mytton
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Influencing the carbon emissions of AI
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