Power model after Mytton, Lundén & Malmodin (2024), Network energy use not directly proportional
to data volume, J. Ind. Ecol. 28(4), 966–980 ·
doi:10.1111/jiec.13512 · Compared against CO2.js's
Sustainable Web Design Model v4.
1 · Load a network trace
or drop files below
Drop a .har file and/or a Firefox profiler .json here
2 · Session derived from the trace
3 · Assumptions
4 · Two answers
SWDM v4 — energy allocated by bytes
– gCO₂e
Power model — energy attributable from power × time
– gCO₂e
■ baseline (always-on)
■ marginal (caused by this session)