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.
The kilojoule, abbreviated as kJ, is a unit of energy in the International System of Units. While it may not be as commonly recognized as calories in everyday conversation, the kilojoule is actually the standard metric unit for quantifying energy. Fascinatingly, 1 kilojoule is equivalent to 0.239 calories, making it a handy unit for converting nutritional information, especially in countries that primarily use the metric system.
Interestingly, the term “joule” is named after the English physicist James Prescott Joule, who studied the nature of heat and discovered its relationship to mechanical work. This unit has applications far beyond nutrition, including physics, chemistry, and engineering, where it measures various types of energy transformations, from kinetic to thermal. Understanding kilojoules can deepen our appreciation of energy, highlighting the intricate balances that power our world and our bodies.
| Gigawatt-hours | Kilojoules |
|---|---|
0
GWh
|
0
kJ
|
0.1
GWh
|
3.6e+8
kJ
|
0.2
GWh
|
7.2e+8
kJ
|
0.3
GWh
|
1.08e+9
kJ
|
0.4
GWh
|
1.44e+9
kJ
|
0.5
GWh
|
1.8e+9
kJ
|
0.6
GWh
|
2.16e+9
kJ
|
0.7
GWh
|
2.52e+9
kJ
|
0.8
GWh
|
2.88e+9
kJ
|
0.9
GWh
|
3.24e+9
kJ
|
1
GWh
|
3.6e+9
kJ
|
1.1
GWh
|
3.96e+9
kJ
|
1.2
GWh
|
4.32e+9
kJ
|
1.3
GWh
|
4.68e+9
kJ
|
1.4
GWh
|
5.04e+9
kJ
|
1.5
GWh
|
5.4e+9
kJ
|
1.6
GWh
|
5.76e+9
kJ
|
1.7
GWh
|
6.12e+9
kJ
|
1.8
GWh
|
6.48e+9
kJ
|
1.9
GWh
|
6.84e+9
kJ
|
2
GWh
|
7.2e+9
kJ
|
2.1
GWh
|
7.56e+9
kJ
|
2.2
GWh
|
7.92e+9
kJ
|
2.3
GWh
|
8.28e+9
kJ
|
2.4
GWh
|
8.64e+9
kJ
|
2.5
GWh
|
9e+9
kJ
|
2.6
GWh
|
9.36e+9
kJ
|
2.7
GWh
|
9.72e+9
kJ
|
2.8
GWh
|
1.008e+10
kJ
|
2.9
GWh
|
1.044e+10
kJ
|
3
GWh
|
1.08e+10
kJ
|
3.1
GWh
|
1.116e+10
kJ
|
3.2
GWh
|
1.152e+10
kJ
|
3.3
GWh
|
1.188e+10
kJ
|
3.4
GWh
|
1.224e+10
kJ
|
3.5
GWh
|
1.26e+10
kJ
|
3.6
GWh
|
1.296e+10
kJ
|
3.7
GWh
|
1.332e+10
kJ
|
3.8
GWh
|
1.368e+10
kJ
|
3.9
GWh
|
1.404e+10
kJ
|
4
GWh
|
1.44e+10
kJ
|
4.1
GWh
|
1.476e+10
kJ
|
4.2
GWh
|
1.512e+10
kJ
|
4.3
GWh
|
1.548e+10
kJ
|
4.4
GWh
|
1.584e+10
kJ
|
4.5
GWh
|
1.62e+10
kJ
|
4.6
GWh
|
1.656e+10
kJ
|
4.7
GWh
|
1.692e+10
kJ
|
4.8
GWh
|
1.728e+10
kJ
|
4.9
GWh
|
1.764e+10
kJ
|
5
GWh
|
1.8e+10
kJ
|
5.1
GWh
|
1.836e+10
kJ
|
5.2
GWh
|
1.872e+10
kJ
|
5.3
GWh
|
1.908e+10
kJ
|
5.4
GWh
|
1.944e+10
kJ
|
5.5
GWh
|
1.98e+10
kJ
|
5.6
GWh
|
2.016e+10
kJ
|
5.7
GWh
|
2.052e+10
kJ
|
5.8
GWh
|
2.088e+10
kJ
|
5.9
GWh
|
2.124e+10
kJ
|
6
GWh
|
2.16e+10
kJ
|
6.1
GWh
|
2.196e+10
kJ
|
6.2
GWh
|
2.232e+10
kJ
|
6.3
GWh
|
2.268e+10
kJ
|
6.4
GWh
|
2.304e+10
kJ
|
6.5
GWh
|
2.34e+10
kJ
|
6.6
GWh
|
2.376e+10
kJ
|
6.7
GWh
|
2.412e+10
kJ
|
6.8
GWh
|
2.448e+10
kJ
|
6.9
GWh
|
2.484e+10
kJ
|
7
GWh
|
2.52e+10
kJ
|
7.1
GWh
|
2.556e+10
kJ
|
7.2
GWh
|
2.592e+10
kJ
|
7.3
GWh
|
2.628e+10
kJ
|
7.4
GWh
|
2.664e+10
kJ
|
7.5
GWh
|
2.7e+10
kJ
|
7.6
GWh
|
2.736e+10
kJ
|
7.7
GWh
|
2.772e+10
kJ
|
7.8
GWh
|
2.808e+10
kJ
|
7.9
GWh
|
2.844e+10
kJ
|
8
GWh
|
2.88e+10
kJ
|
8.1
GWh
|
2.916e+10
kJ
|
8.2
GWh
|
2.952e+10
kJ
|
8.3
GWh
|
2.988e+10
kJ
|
8.4
GWh
|
3.024e+10
kJ
|
8.5
GWh
|
3.06e+10
kJ
|
8.6
GWh
|
3.096e+10
kJ
|
8.7
GWh
|
3.132e+10
kJ
|
8.8
GWh
|
3.168e+10
kJ
|
8.9
GWh
|
3.204e+10
kJ
|
9
GWh
|
3.24e+10
kJ
|
9.1
GWh
|
3.276e+10
kJ
|
9.2
GWh
|
3.312e+10
kJ
|
9.3
GWh
|
3.348e+10
kJ
|
9.4
GWh
|
3.384e+10
kJ
|
9.5
GWh
|
3.42e+10
kJ
|
9.6
GWh
|
3.456e+10
kJ
|
9.7
GWh
|
3.492e+10
kJ
|
9.8
GWh
|
3.528e+10
kJ
|
9.9
GWh
|
3.564e+10
kJ
|
10
GWh
|
3.6e+10
kJ
|
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