A gigawatt (GW) is a unit of power equal to one billion watts (W). To convert gigawatts to watts, multiply the number of gigawatts by 1,000,000,000. For example, 2 GW equals 2,000,000,000 W. This conversion is essential in fields like energy production and consumption, where power outputs of large facilities, such as power plants, are often measured in gigawatts. Understanding this conversion helps in accurately assessing and comparing the capacities of different power generation sources.