Estimated
Data centers consumed about 415 TWh globally in 2024, around 1.5% of global electricity use.
The global share is modest, but facilities are concentrated, so local grid impacts can be much larger.
Understand it / 20 seconds
Why does AI need data centers?
AI models run as vast numbers of mathematical operations. Data centers put specialized chips, memory, networking, power delivery, and cooling in one coordinated system so those operations can happen quickly and reliably.
02Show meFollow the connection
- 01Human request
- 02AI model
- 03Many calculations
- 04GPU cluster
- 05Data center
Here's what matters
The answer changes when these conditions change.
- 01Training versus everyday model use
- 02Chip efficiency
- 03How often people use the system
- 04How large the model and workload are
- 05Where the facility gets electricity
03Prove itOpen the machinery
Inspect the claims behind this answer.
Each layer shows evidence type, geography, assumptions, caveats, review date, and original sources.
Estimated
Global data-center electricity demand grew by an estimated 17% in 2025.
AI-focused facilities grew faster, while efficiency per AI task also improved.