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 watt-minute is a lesser-known unit of energy, yet it plays a significant role in understanding everyday energy consumption. It is equivalent to 60 joules and is simply the amount of energy produced or consumed by a power of one watt over one minute. Although not commonly used in everyday measurements, watt-minutes can be instrumental in more precise energy calculations, such as for electrical appliances or industrial equipment, providing insights between larger units like kilowatt-hours and smaller units like joules.
Intriguingly, it takes roughly 15 watt-minutes to charge a modern smartphone for one minute of talk time. This highlights how even small units can offer a clearer perspective on our energy usage, encouraging us to be more mindful of our energy habits!
| Gigawatt-hours | Watt-minutes |
|---|---|
0
GWh
|
0
Wm
|
0.1
GWh
|
6e+9
Wm
|
0.2
GWh
|
1.2e+10
Wm
|
0.3
GWh
|
1.8e+10
Wm
|
0.4
GWh
|
2.4e+10
Wm
|
0.5
GWh
|
3e+10
Wm
|
0.6
GWh
|
3.6e+10
Wm
|
0.7
GWh
|
4.2e+10
Wm
|
0.8
GWh
|
4.8e+10
Wm
|
0.9
GWh
|
5.4e+10
Wm
|
1
GWh
|
6e+10
Wm
|
1.1
GWh
|
6.6e+10
Wm
|
1.2
GWh
|
7.2e+10
Wm
|
1.3
GWh
|
7.8e+10
Wm
|
1.4
GWh
|
8.4e+10
Wm
|
1.5
GWh
|
9e+10
Wm
|
1.6
GWh
|
9.6e+10
Wm
|
1.7
GWh
|
1.02e+11
Wm
|
1.8
GWh
|
1.08e+11
Wm
|
1.9
GWh
|
1.14e+11
Wm
|
2
GWh
|
1.2e+11
Wm
|
2.1
GWh
|
1.26e+11
Wm
|
2.2
GWh
|
1.32e+11
Wm
|
2.3
GWh
|
1.38e+11
Wm
|
2.4
GWh
|
1.44e+11
Wm
|
2.5
GWh
|
1.5e+11
Wm
|
2.6
GWh
|
1.56e+11
Wm
|
2.7
GWh
|
1.62e+11
Wm
|
2.8
GWh
|
1.68e+11
Wm
|
2.9
GWh
|
1.74e+11
Wm
|
3
GWh
|
1.8e+11
Wm
|
3.1
GWh
|
1.86e+11
Wm
|
3.2
GWh
|
1.92e+11
Wm
|
3.3
GWh
|
1.98e+11
Wm
|
3.4
GWh
|
2.04e+11
Wm
|
3.5
GWh
|
2.1e+11
Wm
|
3.6
GWh
|
2.16e+11
Wm
|
3.7
GWh
|
2.22e+11
Wm
|
3.8
GWh
|
2.28e+11
Wm
|
3.9
GWh
|
2.34e+11
Wm
|
4
GWh
|
2.4e+11
Wm
|
4.1
GWh
|
2.46e+11
Wm
|
4.2
GWh
|
2.52e+11
Wm
|
4.3
GWh
|
2.58e+11
Wm
|
4.4
GWh
|
2.64e+11
Wm
|
4.5
GWh
|
2.7e+11
Wm
|
4.6
GWh
|
2.76e+11
Wm
|
4.7
GWh
|
2.82e+11
Wm
|
4.8
GWh
|
2.88e+11
Wm
|
4.9
GWh
|
2.94e+11
Wm
|
5
GWh
|
3e+11
Wm
|
5.1
GWh
|
3.06e+11
Wm
|
5.2
GWh
|
3.12e+11
Wm
|
5.3
GWh
|
3.18e+11
Wm
|
5.4
GWh
|
3.24e+11
Wm
|
5.5
GWh
|
3.3e+11
Wm
|
5.6
GWh
|
3.36e+11
Wm
|
5.7
GWh
|
3.42e+11
Wm
|
5.8
GWh
|
3.48e+11
Wm
|
5.9
GWh
|
3.54e+11
Wm
|
6
GWh
|
3.6e+11
Wm
|
6.1
GWh
|
3.66e+11
Wm
|
6.2
GWh
|
3.72e+11
Wm
|
6.3
GWh
|
3.78e+11
Wm
|
6.4
GWh
|
3.84e+11
Wm
|
6.5
GWh
|
3.9e+11
Wm
|
6.6
GWh
|
3.96e+11
Wm
|
6.7
GWh
|
4.02e+11
Wm
|
6.8
GWh
|
4.08e+11
Wm
|
6.9
GWh
|
4.14e+11
Wm
|
7
GWh
|
4.2e+11
Wm
|
7.1
GWh
|
4.26e+11
Wm
|
7.2
GWh
|
4.32e+11
Wm
|
7.3
GWh
|
4.38e+11
Wm
|
7.4
GWh
|
4.44e+11
Wm
|
7.5
GWh
|
4.5e+11
Wm
|
7.6
GWh
|
4.56e+11
Wm
|
7.7
GWh
|
4.62e+11
Wm
|
7.8
GWh
|
4.68e+11
Wm
|
7.9
GWh
|
4.74e+11
Wm
|
8
GWh
|
4.8e+11
Wm
|
8.1
GWh
|
4.86e+11
Wm
|
8.2
GWh
|
4.92e+11
Wm
|
8.3
GWh
|
4.98e+11
Wm
|
8.4
GWh
|
5.04e+11
Wm
|
8.5
GWh
|
5.1e+11
Wm
|
8.6
GWh
|
5.16e+11
Wm
|
8.7
GWh
|
5.22e+11
Wm
|
8.8
GWh
|
5.28e+11
Wm
|
8.9
GWh
|
5.34e+11
Wm
|
9
GWh
|
5.4e+11
Wm
|
9.1
GWh
|
5.46e+11
Wm
|
9.2
GWh
|
5.52e+11
Wm
|
9.3
GWh
|
5.58e+11
Wm
|
9.4
GWh
|
5.64e+11
Wm
|
9.5
GWh
|
5.7e+11
Wm
|
9.6
GWh
|
5.76e+11
Wm
|
9.7
GWh
|
5.82e+11
Wm
|
9.8
GWh
|
5.88e+11
Wm
|
9.9
GWh
|
5.94e+11
Wm
|
10
GWh
|
6e+11
Wm
|
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