petawatt | 1 PW | 2 PW | 3 PW | 4 PW | 5 PW | 6 PW | 7 PW | 8 PW | 9 PW | 10 PW | 11 PW | 12 PW | 13 PW | 14 PW | 15 PW | 16 PW | 17 PW | 18 PW | 19 PW | 20 PW | 21 PW | 22 PW | 23 PW | 24 PW | 25 PW | 26 PW | 27 PW | 28 PW | 29 PW | 30 PW | 31 PW | 32 PW | 33 PW | 34 PW | 35 PW | 36 PW | 37 PW | 38 PW | 39 PW | 40 PW | 41 PW | 42 PW | 43 PW | 44 PW | 45 PW | 46 PW | 47 PW | 48 PW | 49 PW | 50 PW | 51 PW | 52 PW | 53 PW | 54 PW | 55 PW | 56 PW | 57 PW | 58 PW | 59 PW | 60 PW | 61 PW | 62 PW | 63 PW | 64 PW | 65 PW | 66 PW | 67 PW | 68 PW | 69 PW | 70 PW | 71 PW | 72 PW | 73 PW | 74 PW | 75 PW | 76 PW | 77 PW | 78 PW | 79 PW | 80 PW | 81 PW | 82 PW | 83 PW | 84 PW | 85 PW | 86 PW | 87 PW | 88 PW | 89 PW | 90 PW | 91 PW | 92 PW | 93 PW | 94 PW | 95 PW | 96 PW | 97 PW | 98 PW | 99 PW | 100 PW |
megawatt | 1 000 000 000 MW | 2 000 000 000 MW | 3 000 000 000 MW | 4 000 000 000 MW | 5 000 000 000 MW | 6 000 000 000 MW | 7 000 000 000 MW | 8 000 000 000 MW | 9 000 000 000 MW | 10 000 000 000 MW | 11 000 000 000 MW | 12 000 000 000 MW | 13 000 000 000 MW | 14 000 000 000 MW | 15 000 000 000 MW | 16 000 000 000 MW | 17 000 000 000 MW | 18 000 000 000 MW | 19 000 000 000 MW | 20 000 000 000 MW | 21 000 000 000 MW | 22 000 000 000 MW | 23 000 000 000 MW | 24 000 000 000 MW | 25 000 000 000 MW | 26 000 000 000 MW | 27 000 000 000 MW | 28 000 000 000 MW | 29 000 000 000 MW | 30 000 000 000 MW | 31 000 000 000 MW | 32 000 000 000 MW | 33 000 000 000 MW | 34 000 000 000 MW | 35 000 000 000 MW | 36 000 000 000 MW | 37 000 000 000 MW | 38 000 000 000 MW | 39 000 000 000 MW | 40 000 000 000 MW | 41 000 000 000 MW | 42 000 000 000 MW | 43 000 000 000 MW | 44 000 000 000 MW | 45 000 000 000 MW | 46 000 000 000 MW | 47 000 000 000 MW | 48 000 000 000 MW | 49 000 000 000 MW | 50 000 000 000 MW | 51 000 000 000 MW | 52 000 000 000 MW | 53 000 000 000 MW | 54 000 000 000 MW | 55 000 000 000 MW | 56 000 000 000 MW | 57 000 000 000 MW | 58 000 000 000 MW | 59 000 000 000 MW | 60 000 000 000 MW | 61 000 000 000 MW | 62 000 000 000 MW | 63 000 000 000 MW | 64 000 000 000 MW | 65 000 000 000 MW | 66 000 000 000 MW | 67 000 000 000 MW | 68 000 000 000 MW | 69 000 000 000 MW | 70 000 000 000 MW | 71 000 000 000 MW | 72 000 000 000 MW | 73 000 000 000 MW | 74 000 000 000 MW | 75 000 000 000 MW | 76 000 000 000 MW | 77 000 000 000 MW | 78 000 000 000 MW | 79 000 000 000 MW | 80 000 000 000 MW | 81 000 000 000 MW | 82 000 000 000 MW | 83 000 000 000 MW | 84 000 000 000 MW | 85 000 000 000 MW | 86 000 000 000 MW | 87 000 000 000 MW | 88 000 000 000 MW | 89 000 000 000 MW | 90 000 000 000 MW | 91 000 000 000 MW | 92 000 000 000 MW | 93 000 000 000 MW | 94 000 000 000 MW | 95 000 000 000 MW | 96 000 000 000 MW | 97 000 000 000 MW | 98 000 000 000 MW | 99 000 000 000 MW | 100 000 000 000 MW |
The petawatt (PW) is equal to one quadrillion (1015) watts and can be produced by the current generation of lasers for time-scales on the order of picoseconds (10−12 s). One such laser is the Lawrence Livermore's Nova laser, which achieved a power output of 1.25 PW (1.25×1015 W) by a process called chirped pulse amplification. The duration of the pulse was roughly 0.5 ps (5×10−13 s), giving a total energy of 600 J.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
petawatt | PW | = 1015 W | = 1015 W | Metric system SI |
petawatts | megawatts | petawatts | megawatts |
---|---|---|---|
1 | = 1000000000 | 6 | = 6000000000 |
2 | = 2000000000 | 7 | = 7000000000 |
3 | = 3000000000 | 8 | = 8000000000 |
4 | = 4000000000 | 9 | = 9000000000 |
5 | = 5000000000 | 10 | = 10000000000 |
The megawatt (MW) is equal to one million (106) watts. Many events or machines produce or sustain the conversion of energy on this scale, including large electric motors; large warships such as aircraft carriers, cruisers, and submarines; large server farms or data centers; and some scientific research equipment, such as supercolliders, and the output pulses of very large lasers. A large residential or commercial building may use several megawatts in electric power and heat. On railways, modern high-powered electric locomotives typically have a peak power output of 5 or 6 MW, although some produce much more. The Eurostar, for example, uses more than 12 MW, while heavy diesel-electric locomotives typically produce/use 3 to 5 MW. U.S. nuclear power plants have net summer capacities between about 500 and 1300 MW.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
megawatt | MW | = 106 W | = 106 W | Metric system SI |
megawatts | petawatts | megawatts | petawatts |
---|---|---|---|
1 | = 1.0E-9 | 6 | = 6.0E-9 |
2 | = 2.0E-9 | 7 | = 7.0E-9 |
3 | = 3.0E-9 | 8 | = 8.0E-9 |
4 | = 4.0E-9 | 9 | = 9.0E-9 |
5 | = 5.0E-9 | 10 | = 1.0E-8 |
petawatts | megawatts |
---|---|
1 | = 1 000 000 000 |
1.0 × 10-9 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |