Créer un clip de 5 secondes

Name: Create a clip of 5 seconds
Creator: Projet Celsius
License: https://creativecommons.org/licenses/by/4.0/

Projet Celsius

Database entryUsesLevel 3 of 6 useUse, level 3 of 6Used to calculate 6 entries, level 4Calculated with 3 entries, levels 1 and 2Database structure

Create a clip of 5 seconds

A video of about 5 seconds in 720p with WAN 2.1, measured on an H100 GPU, one video at a time.

"Second of video" accounts for 91% of emissions in this scenario.
The calculation covers the GPU, processor and memory of the server, and cooling of the data centre.
Out of scope: server manufacturing, model training and the user's device.

Compare

Calculated with

Used to calculate

Breakdown of emissions by item

45 gCO2e in total: 99 Wh of electricity × 458 gCO2e/kWh (servers worldwide).

Inputs of the calculation 2

PUE of the data centre, Second of video

Annual emissions for creating a 5-second clip, by frequency

Your frequencyPeriod

Read the values at10 times a year

Reading: a single use of "5-second clip" weighs as much as 5.2 phone charges. Carbon footprint (CO2e) over one year, by number of uses. Each use is a straight line; "5-second clip" is highlighted, with the chosen parameters, compared with 6 reference uses at their default settings; the solid line shows one phone charge per week over a year, and the point where the task reaches it. Servers worldwide. Calculation from the AI Impact Database by Projet Celsius.

How the calculation is built

WAN 2.1 is the second largest consumer of the seven open generators measured by the same study. Sora, Veo and the other closed generators publish nothing.

Comparison with the other uses

The topic "Video"

Clip of 5 seconds45 gCO2e
Clip of 10 seconds160 gCO2e, 3.4 times the value of "5-second clip"

Emissions of one use, linear scale. For calculated values, servers worldwide.

Characteristics

Unit	1 video : about 5 seconds
Default location	world, 458 gCO2e/kWh (Ember 2025, life cycle); 11 other locations to choose from
Counted	the GPU, processor and memory of the server, and cooling of the data centre
Not counted	server manufacturing, model training and the user's device
Status	measured, 1 recorded value of the same scope, 3 other published values

All the characteristics identifier, version, rule for the value, sources, licence

Identifier	IA-0047, projetcelsius.com/en/ai/database/IA-0047/
Version	0.3 of 2 November 2026
Category	Uses, a request to AI
Choice of the selected value	database calculation from the entries this one is made of, at the quantities of the unit
Sources	database calculation, 2025
Licence	CC BY 4.0

Emissions by server location

Emissions associated with electricity (CO2e)

Poland58 gCO2e
World45 gCO2e
United States38 gCO2e
European Union21 gCO2e
France4.1 gCO2e

× 14 between Poland and France, for the same electricity

Ember 2025, over the life cycle. The same use consumes 99 Wh in each location.

Create a 5-second clip · result per video · measured · one server location per line.Counted: the GPU, processor and memory of the server, and cooling of the data centre. Out of scope: server manufacturing, model training and the user's deviceFind this case: projetcelsius.com/en/ai/database/tasks/create-a-5-second-clip/Projet Celsius calculation, AI Impact Database, version 0.4 of 13 November 2026 · IA-0047, entry added in version 0.3 · engine 0.3.1 · CC BY 4.0.

Result for the chosen case

Location of the servers

Duration

Quantity and duration

Seconds of video

5.4 seconds per video, servers worldwide: 45 gCO2e, 99 Wh.

For a carbon footprint

The row for a carbon footprint

Item	purchases of services (GHG Protocol scope 3, category 1); regulatory BEGES, category 4
Quantity	1 video
Factor	45 gCO2e per video, IA-0047 version 0.3, based on the local grid (location-based), servers worldwide
Total	45 gCO2e · not counted: server manufacturing, model training and the user's device

Breakdown of emissions by item

Emissions associated with electricity (CO2e)

Second of video41 gCO2e · 91 %
PUE of the data centre4.1 gCO2e · 9.1 %

Create a 5-second clip · result per video · measured · servers worldwide.Counted: the GPU, processor and memory of the server, and cooling of the data centre. Out of scope: server manufacturing, model training and the user's deviceFind this case: projetcelsius.com/en/ai/database/tasks/create-a-5-second-clip/Projet Celsius calculation, AI Impact Database, version 0.4 of 13 November 2026 · IA-0047, entry added in version 0.3 · engine 0.3.1 · CC BY 4.0.

Breakdown by item

Quantity, unit value, contribution and nature of the data for each item

Item	Quantity	Unit value	Contribution	Share	Nature of the data
Second of video	× 5.4	17 Wh	90 Wh	91 %	recorded · Delavande et al.
PUE of the data centre	× 1.10 on the rest		9 Wh	9 %	convention

Entries that use it (6)

Communications officer, 1 year, Graphic designer, 1 year, Videographer, 1 year, Free personal use, 1 year, ChatGPT Plus, 1 year, Google AI Pro, 1 year

Sources of the calculation

3 publications, for this entry and those used to calculate it, with the chosen parameters.

The result is calculated by Projet Celsius. The sources below support its uses, its factors and its conversion; they do not all measure this total.

Energy and factors

The references of the selected values and of the entries used in this calculation.

Delavande et al. · September 2025
Video Killed the Energy Budget ↗ (new tab)
Second of video
Role and limits : Delavande et al.
Author. Delavande, Pierrard and Luccioni
What the publication covers. GPU, processor, memory
What it does not cover. data centre
Reading by the database. Seven open models
- 5-second clip → : Second of video →
  The seconds of the measured video, 5.4
  Scope of the figure used. GPU, processor, memory; excluding the data centre
  Limit. This figure covers part of the calculation; it does not measure the whole entry.
Watershed · Aug. 2026
Estimating GHG Emissions from AI Use: Framework for Corporate-Level Measurement ↗ (new tab)
PUE of the data centre
Role and limits : Watershed
Author. Bistline, Ulissi, Davis, Glidden, Joyce, Li, Mohsenin and Suh (Watershed)
What the publication covers. factors per 1,000 tokens read and written at the server before PUE (host and standby machines included), PUE separate (1.10 for a large operator, 1.56 for an unknown operator)
What it does not cover. clean measurements, the model and the hardware
Reading by the database. Default factors proposed for review (public data as of June 2026); for a large operator, taken from Google's measurement published in 2025 (Elsworth et al.), which already contains the data centre overhead; constant per token, they underestimate long contexts and agents according to the authors
- 5-second clip → : Data centre PUE →
  The data centre, convention C3
  Scope of the figure used. building cooling and losses
  Limit. This figure covers part of the calculation; it does not measure the whole entry.
- Data centre PUE →
  Reference of the selected value
  Scope of the figure used. Default factor for a large operator, from the server to the data centre; 1.56 for an unknown operator
  Limit. A default value, not a measurement

Conversion into carbon

The source of the electricity factor of the selected location.

Worldwide: 458 gCO2e/kWh, life cycle.

Ember · 2026
Global Electricity Review 2026, and Our World in Data based on Ember ↗ (new tab)
Grid electricity
Role and limits : Ember
Author. Ember, Our World in Data
What the publication covers. electricity generation over the life cycle, by country
What it does not cover. guarantees of origin
Reading by the database. The same source for all countries
- Grid electricity →
  Conversion of electricity into carbon: worldwide
  Scope of the figure used. the production of electricity over the life cycle, including power plant construction and fuels
  Limit. An average for the chosen country, not the electricity contract or the data centre of a specific service.

Published values

4 figures for the same operation, each within its own scope.

Green: same scope as the selected value (measured in dark, estimated or published in light). Grey: other scope. Empty circle: check by the database or discarded figure. Logarithmic scale.

Source	Date	Electricity	What the figure measures	Scope	Status
Clip of 5 secondsselected by the database, v0.3	2026	99 Wh	the value selected by the database	same scope	measured
Delavande, Pierrard and Luccioni ↗Video Killed the Energy Budget	Sept. 2025	90 Wh	81 frames in 720p, or 5.4 seconds, WAN2.1 1.3B, processor and memory included · The second-largest consumer of the 7 models in the study; median 25 Wh; from 0.14 to more than 415 Wh depending on the model	same scope	measured
Delavande, Pierrard and Luccioni ↗Video Killed the Energy Budget	Sept. 2025	0.14 Wh to 415 Wh	Seven open generators, a video of 1.6 to 6.1 seconds each, default settings · The median of the seven is about 25 Wh, according to our calculation from the study	other scope	measured
IEA ↗Energy and AI	2025	115 Wh	6 seconds, GPU alone · Other duration and other scope	other scope	estimated
MIT Technology Review ↗We did the math on AI's energy footprint	May 2025	944 Wh	CogVideoX, November 2024 version, a video of 5 seconds at 16 frames per second · Other settings: the old version, in very low quality, consumed about 30 Wh	other scope	measured

The published figures do not all count the same scope; the scope of each figure is written next to it. Why do the estimates diverge?

Nature of the data

Published readings, conventions, assumptions

What this figure rests on

database conventions 100 %

Calculation assumptions

Quantities, nature and source of each assumption

Second of video : × 5.4
The seconds of the measured video, 5.4
recorded · Delavande et al. · Second of video

Methodology conventions

With their alternatives

The full methodology

The data centre	Server electricity is multiplied by 1.10 for the data centre · alternatives: × 1.72 from chips to the full service at Google, never to be combined
The default location	Without other information, the servers are in the world, at the world average electricity · alternatives: the United States, where most of the large assistants run
Electricity, location-based, on a life cycle basis	The kilowatt-hour is that of the servers' country, on a life cycle basis, from a single source for all countries · alternatives: market-based, with purchase contracts, shown alongside when published
Two significant figures	A calculated value is rounded to two significant figures, a published value is reproduced with the precision of its source; the calculation keeps full precision
The formula	the sum of what makes up the entry, then CO2e: electricity (Wh) multiplied by the carbon intensity of the server location (gCO2e/kWh), divided by 1,000
Calculate a case without an entry	The formula, the default values and a step-by-step example

Uses in the hub

Charts, figures, analyses and articles that cite this entry

History

Entry in version 0.3 of 2 November 2026, in the database in version 0.4

The changelog

11 November 2026Description : A video of about 5 seconds in 720p with WAN 2.1 becomes A video of about 5 seconds in 720p with WAN 2.1, measured on an H100 GPU, one video at a time.The measurement conditions of Delavande et al.; the value does not change.
2 November 2026Rows 10 s, 30 s and one minute : by extrapolation.These durations multiply the measured video of 5.4 seconds: the label says so.
2 November 2026Designation : A generated video becomes Generated video (5 s).More precise designation: the object first, the specification after the comma, the quantity or period at the end; the former title remains searchable.
2 November 2026Designation : Generated video (5 s) becomes Create a 5-second clip.The name in people's own words.
2 November 2026Short title : Generated video (5 s) becomes 5-second clip.In people's own words.
2 November 2026Address : video-generee becomes creer-un-clip-de-5-secondes.The old address redirected.
31 October 2026Creation of the database, in its first version (0.1).

Citation

Projet Celsius, AI Impact Database, version 0.4 of 13 November 2026, "Create a 5-second clip", IA-0047 (entry added in version 0.3 of 2 November 2026), projetcelsius.com/en/ai/database/IA-0047/ · CC BY 4.0.

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