Horsepower (metric) is a fascinating unit of measurement that dates back to the 18th century, when James Watt, the developer of the steam engine, sought to compare the power output of his engines to that of draft horses. The metric horsepower is defined as the amount of power required to lift a 75-kilogram mass one meter vertically in one second, which is equivalent to 735.5 watts. Interestingly, this unit persists in many regions, particularly in the automotive industry, where it is used to convey the strength of vehicle engines. Despite advancements in engine technology, the image of raw horsepower continues to captivate our imagination, embodying both history and precision engineering.
A gigawatt (GW) is a unit of power equal to one billion watts. To put it into perspective, a single gigawatt can power approximately 750,000 homes simultaneously in developed countries. This immense power is often used to measure the capacity of power plants, with modern nuclear reactors typically generating between 1 to 1.3 gigawatts each. The term gained mainstream attention in pop culture when Doc Brown, in the movie “Back to the Future,” famously exclaimed the need for 1.21 “gigawatts” to power his time machine. Although mistakenly pronounced, it sparked curiosity about the sheer scale of energy required for large-scale projects and futuristic concepts. Today, understanding gigawatts is crucial as we transition to more sustainable energy sources and technologies.
Horsepower (metric) | Gigawatts |
---|---|
0
PS
|
0
GW
|
10
PS
|
7.35499e-6
GW
|
20
PS
|
0.00001471
GW
|
30
PS
|
0.000022065
GW
|
40
PS
|
2.94199e-5
GW
|
50
PS
|
3.67749e-5
GW
|
60
PS
|
4.41299e-5
GW
|
70
PS
|
5.14849e-5
GW
|
80
PS
|
5.88399e-5
GW
|
90
PS
|
6.61949e-5
GW
|
100
PS
|
7.35499e-5
GW
|
110
PS
|
8.09049e-5
GW
|
120
PS
|
8.82598e-5
GW
|
130
PS
|
9.56148e-5
GW
|
140
PS
|
0.00010297
GW
|
150
PS
|
0.000110325
GW
|
160
PS
|
0.00011768
GW
|
170
PS
|
0.000125035
GW
|
180
PS
|
0.00013239
GW
|
190
PS
|
0.000139745
GW
|
200
PS
|
0.0001471
GW
|
210
PS
|
0.000154455
GW
|
220
PS
|
0.00016181
GW
|
230
PS
|
0.000169165
GW
|
240
PS
|
0.00017652
GW
|
250
PS
|
0.000183875
GW
|
260
PS
|
0.00019123
GW
|
270
PS
|
0.000198585
GW
|
280
PS
|
0.00020594
GW
|
290
PS
|
0.000213295
GW
|
300
PS
|
0.00022065
GW
|
310
PS
|
0.000228005
GW
|
320
PS
|
0.00023536
GW
|
330
PS
|
0.000242715
GW
|
340
PS
|
0.00025007
GW
|
350
PS
|
0.000257425
GW
|
360
PS
|
0.00026478
GW
|
370
PS
|
0.000272135
GW
|
380
PS
|
0.00027949
GW
|
390
PS
|
0.000286845
GW
|
400
PS
|
0.0002942
GW
|
410
PS
|
0.000301554
GW
|
420
PS
|
0.000308909
GW
|
430
PS
|
0.000316264
GW
|
440
PS
|
0.000323619
GW
|
450
PS
|
0.000330974
GW
|
460
PS
|
0.000338329
GW
|
470
PS
|
0.000345684
GW
|
480
PS
|
0.000353039
GW
|
490
PS
|
0.000360394
GW
|
500
PS
|
0.000367749
GW
|
510
PS
|
0.000375104
GW
|
520
PS
|
0.000382459
GW
|
530
PS
|
0.000389814
GW
|
540
PS
|
0.000397169
GW
|
550
PS
|
0.000404524
GW
|
560
PS
|
0.000411879
GW
|
570
PS
|
0.000419234
GW
|
580
PS
|
0.000426589
GW
|
590
PS
|
0.000433944
GW
|
600
PS
|
0.000441299
GW
|
610
PS
|
0.000448654
GW
|
620
PS
|
0.000456009
GW
|
630
PS
|
0.000463364
GW
|
640
PS
|
0.000470719
GW
|
650
PS
|
0.000478074
GW
|
660
PS
|
0.000485429
GW
|
670
PS
|
0.000492784
GW
|
680
PS
|
0.000500139
GW
|
690
PS
|
0.000507494
GW
|
700
PS
|
0.000514849
GW
|
710
PS
|
0.000522204
GW
|
720
PS
|
0.000529559
GW
|
730
PS
|
0.000536914
GW
|
740
PS
|
0.000544269
GW
|
750
PS
|
0.000551624
GW
|
760
PS
|
0.000558979
GW
|
770
PS
|
0.000566334
GW
|
780
PS
|
0.000573689
GW
|
790
PS
|
0.000581044
GW
|
800
PS
|
0.000588399
GW
|
810
PS
|
0.000595754
GW
|
820
PS
|
0.000603109
GW
|
830
PS
|
0.000610464
GW
|
840
PS
|
0.000617819
GW
|
850
PS
|
0.000625174
GW
|
860
PS
|
0.000632529
GW
|
870
PS
|
0.000639884
GW
|
880
PS
|
0.000647239
GW
|
890
PS
|
0.000654594
GW
|
900
PS
|
0.000661949
GW
|
910
PS
|
0.000669304
GW
|
920
PS
|
0.000676659
GW
|
930
PS
|
0.000684014
GW
|
940
PS
|
0.000691369
GW
|
950
PS
|
0.000698724
GW
|
960
PS
|
0.000706079
GW
|
970
PS
|
0.000713434
GW
|
980
PS
|
0.000720789
GW
|
990
PS
|
0.000728144
GW
|
1000
PS
|
0.000735499
GW
|
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