ABCDEFGHIJKLMNOPQRSTUVWXYZAA
1
2
Wagtail Space 2025 carbon footprintIllustrative data
Wagtail Space 2025 carbon footprint
3
Total viewing time (person-hours)1099.25Total energy use:76.70kWh
https://wagtail.org/blog/online-conference-footprint-wagtail-space-2025/
4
Energy use per hour (kWh)0.070Emissions per hour:26.21gCO₂eq/hLast updated: 2026-01-12
5
Carbon intensity (gCO₂eq/kWh)375.61
Carbon intensity: Ember 2024-2023 electricity data
6
Total attendee count374
Analyst: Thibaud Colas, Torchbox
7
Total carbon footprint (kgCO₂eq)28.81Total runtime (hours)14
Based on publicly-available data summarized in literature review: Assessment of the energy footprint of digital actions and services
8
This calculator only accounts for session attendance as video streaming, it does not quantify the activities related to preparing the conference.
9
It also leaves out the carbon footprint of other aspects of attendance, such as viewing the conference website or online event platform between sessions.
10
Your online conferenceNotes
11
Expected total attendance:500
12
Expected average live attendance rate:25%
Crucial to estimate for an online conference where attendees are across many time zones
13
Expected duration (hours): 24
14
Comparable activities
15
Total viewing time (person-hours)3000Total energy use:209.32kWh
Source: UK government - Greenhouse gas reporting: conversion factors 2025
16
Energy use per hour (kWh)0.070Emissions per hour:32.92gCO₂eq/hUnitValue
17
Carbon intensity (gCO₂eq/kWh)471.84
471.84: Ember estimation for worldwide carbon intensity in 2024
Short-haul flight to/from UKkg CO2e / km0.1279
18
Taxikg CO2e / km0.1486
19
Total carbon footprint (kgCO₂eq)98.77National railkg CO2e / km0.0355
20
Hotel stay
kg CO2e / room / night
10.4000
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100