Physics > Process and Activity Power Ratings
The tables below show the estimated generated power (in Watts) for various
devices or processes and during human activities.
| Power (W) |
Device or process |
| 3.6 × 1039 |
Standard quasar |
| 3.6 × 1026 |
The sun |
| 1.25 × 1015 |
World’s most powerful laser (Petawatt) |
| 1.3 × 1013 |
Total estimated human consumption, global |
| 1.2 × 1010 |
Space shuttle during launch |
| 109 ~ 1010 |
Typical power station output |
| 4,700,000 |
most powerful train (GE AC6000 CW) |
| 783,000 |
most powerful truck (Terex TR100) |
| 468,000 |
most powerful car (McLaren F1) |
| 10,000 |
Watt's steam engine of 1778 |
| 746 |
1 horsepower |
| 100 |
human, daily average output |
| 10−5 |
Human voice |
Estimated power generated by specific human activity.
| Power(W) |
Activity |
| 800 |
playing basketball |
| 700 |
cycling (21 km/h) |
| 685 |
climbing stairs (116 steps/min) |
| 545 |
skating (15 km/h) |
| 475 |
swimming (1.6 km/h) |
| 440 |
playing tennis |
| 400 |
cycling (15 km/h) |
| 265 |
walking (5 km/h) |
| 210 |
sitting with focussed attention |
| 125 |
standing at rest |
| 120 |
sitting at rest |
| 83 |
sleeping |