A gigawatt-hour (GWh) is a unit of energy representing one billion watt-hours, or one million kilowatt-hours. To put it into perspective, a single gigawatt-hour can power approximately 750,000 homes for an hour or a modest-sized city for a few hours! This unit is commonly used in measuring the output of power stations or the amount of electricity consumed over a span.
Interestingly, the largest solar farm in the world, Noor Abu Dhabi, boasts a capacity of about 1,177 gigawatts per year, reflecting how renewable energy advancements continue to scale. As nations transition to greener power, understanding energy units like the gigawatt-hour becomes crucial in evaluating our global energy impact and future sustainability targets.
A megajoule, equivalent to one million joules, is a versatile unit of energy that may be more integral to your daily life than you realize. For instance, the energy stored in a liter of gasoline is approximately 34.2 megajoules, which is why this measure often underpins discussions in energy industries. Interestingly, the lightning bolt that splits the sky during a thunderstorm releases about 500 megajoules, highlighting the immense power nature can unleash in mere seconds.
The megajoule also plays a pivotal role in fields like physics and engineering, especially in calculating the energy output of various processes. For example, modern fusion experiments and some space missions use megajoules to quantify energy needs and outputs. This essential unit connects the dots between cutting-edge technology and natural phenomena, providing insights into the world’s invisible energies.
| Gigawatt-hours | Megajoules |
|---|---|
0
GWh
|
0
MJ
|
0.1
GWh
|
360000
MJ
|
0.2
GWh
|
720000
MJ
|
0.3
GWh
|
1080000
MJ
|
0.4
GWh
|
1440000
MJ
|
0.5
GWh
|
1800000
MJ
|
0.6
GWh
|
2160000
MJ
|
0.7
GWh
|
2520000
MJ
|
0.8
GWh
|
2880000
MJ
|
0.9
GWh
|
3240000
MJ
|
1
GWh
|
3600000
MJ
|
1.1
GWh
|
3960000
MJ
|
1.2
GWh
|
4320000
MJ
|
1.3
GWh
|
4680000
MJ
|
1.4
GWh
|
5040000
MJ
|
1.5
GWh
|
5400000
MJ
|
1.6
GWh
|
5760000
MJ
|
1.7
GWh
|
6120000
MJ
|
1.8
GWh
|
6480000
MJ
|
1.9
GWh
|
6840000
MJ
|
2
GWh
|
7200000
MJ
|
2.1
GWh
|
7560000
MJ
|
2.2
GWh
|
7920000
MJ
|
2.3
GWh
|
8280000
MJ
|
2.4
GWh
|
8640000
MJ
|
2.5
GWh
|
9000000
MJ
|
2.6
GWh
|
9360000
MJ
|
2.7
GWh
|
9720000
MJ
|
2.8
GWh
|
1.008e+7
MJ
|
2.9
GWh
|
1.044e+7
MJ
|
3
GWh
|
1.08e+7
MJ
|
3.1
GWh
|
1.116e+7
MJ
|
3.2
GWh
|
1.152e+7
MJ
|
3.3
GWh
|
1.188e+7
MJ
|
3.4
GWh
|
1.224e+7
MJ
|
3.5
GWh
|
1.26e+7
MJ
|
3.6
GWh
|
1.296e+7
MJ
|
3.7
GWh
|
1.332e+7
MJ
|
3.8
GWh
|
1.368e+7
MJ
|
3.9
GWh
|
1.404e+7
MJ
|
4
GWh
|
1.44e+7
MJ
|
4.1
GWh
|
1.476e+7
MJ
|
4.2
GWh
|
1.512e+7
MJ
|
4.3
GWh
|
1.548e+7
MJ
|
4.4
GWh
|
1.584e+7
MJ
|
4.5
GWh
|
1.62e+7
MJ
|
4.6
GWh
|
1.656e+7
MJ
|
4.7
GWh
|
1.692e+7
MJ
|
4.8
GWh
|
1.728e+7
MJ
|
4.9
GWh
|
1.764e+7
MJ
|
5
GWh
|
1.8e+7
MJ
|
5.1
GWh
|
1.836e+7
MJ
|
5.2
GWh
|
1.872e+7
MJ
|
5.3
GWh
|
1.908e+7
MJ
|
5.4
GWh
|
1.944e+7
MJ
|
5.5
GWh
|
1.98e+7
MJ
|
5.6
GWh
|
2.016e+7
MJ
|
5.7
GWh
|
2.052e+7
MJ
|
5.8
GWh
|
2.088e+7
MJ
|
5.9
GWh
|
2.124e+7
MJ
|
6
GWh
|
2.16e+7
MJ
|
6.1
GWh
|
2.196e+7
MJ
|
6.2
GWh
|
2.232e+7
MJ
|
6.3
GWh
|
2.268e+7
MJ
|
6.4
GWh
|
2.304e+7
MJ
|
6.5
GWh
|
2.34e+7
MJ
|
6.6
GWh
|
2.376e+7
MJ
|
6.7
GWh
|
2.412e+7
MJ
|
6.8
GWh
|
2.448e+7
MJ
|
6.9
GWh
|
2.484e+7
MJ
|
7
GWh
|
2.52e+7
MJ
|
7.1
GWh
|
2.556e+7
MJ
|
7.2
GWh
|
2.592e+7
MJ
|
7.3
GWh
|
2.628e+7
MJ
|
7.4
GWh
|
2.664e+7
MJ
|
7.5
GWh
|
2.7e+7
MJ
|
7.6
GWh
|
2.736e+7
MJ
|
7.7
GWh
|
2.772e+7
MJ
|
7.8
GWh
|
2.808e+7
MJ
|
7.9
GWh
|
2.844e+7
MJ
|
8
GWh
|
2.88e+7
MJ
|
8.1
GWh
|
2.916e+7
MJ
|
8.2
GWh
|
2.952e+7
MJ
|
8.3
GWh
|
2.988e+7
MJ
|
8.4
GWh
|
3.024e+7
MJ
|
8.5
GWh
|
3.06e+7
MJ
|
8.6
GWh
|
3.096e+7
MJ
|
8.7
GWh
|
3.132e+7
MJ
|
8.8
GWh
|
3.168e+7
MJ
|
8.9
GWh
|
3.204e+7
MJ
|
9
GWh
|
3.24e+7
MJ
|
9.1
GWh
|
3.276e+7
MJ
|
9.2
GWh
|
3.312e+7
MJ
|
9.3
GWh
|
3.348e+7
MJ
|
9.4
GWh
|
3.384e+7
MJ
|
9.5
GWh
|
3.42e+7
MJ
|
9.6
GWh
|
3.456e+7
MJ
|
9.7
GWh
|
3.492e+7
MJ
|
9.8
GWh
|
3.528e+7
MJ
|
9.9
GWh
|
3.564e+7
MJ
|
10
GWh
|
3.6e+7
MJ
|
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