The Energy Intensity of the Internet: Edge and Core Networks

  • Daniel SchienEmail author
  • Vlad C. Coroama
  • Lorenz M. Hilty
  • Chris Preist
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 310)


Environmental assessments of digital services seeking to take into account the Internet’s energy footprint typically require models of the energy intensity of the Internet. Existing models have arrived at conflicting results. This has lead to increased uncertainty and reduced comparability of assessment results. We present a bottom-up model for the energy intensity of the Internet that draws from the current state of knowledge in the field and is specifically directed towards assessments of digital services. We present the numeric results and explain the application of the model in practice. Complementing the previous chapter that presented a generic approach and results for access networks and customer premise equipment, we present a model to assess the energy intensity of the core networks, yielding the result of 0.052 kWh/GB.


Internet Energy efficiency Energy intensity Video streaming Online news 


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Daniel Schien
    • 1
    Email author
  • Vlad C. Coroama
    • 2
  • Lorenz M. Hilty
    • 3
    • 4
    • 5
  • Chris Preist
    • 1
  1. 1.Department of Computer ScienceUniversity of BristolBristolUK
  2. 2.Measure-IT ResearchBucharestRomania
  3. 3.Department of InformaticsUniversity of ZurichZurichSwitzerland
  4. 4.Empa, Swiss Federal Laboratories for Materials Science and TechnologySt. GallenSwitzerland
  5. 5.Centre for Sustainable Communications CESCKTH Royal Institute of TechnologyStockholmSweden

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