Watt to Gigawatt Converter

A watt (W) is the SI unit of power, defined as one joule per second. Named after Scottish inventor James Watt, it represents the rate of energy transfer and is fundamental to all power measurements in the International System of Units.

The watt was named after James Watt in 1882 and became the SI unit of power in 1960. It replaced various earlier power units and provided a unified measure based on the fundamental relationship between energy and time, becoming universal in scientific and technical applications.

Watts are universally used for all power measurements, from small electronic devices to large machinery. They're fundamental in electrical engineering, physics, energy efficiency ratings, and form the basis for all other power unit measurements.

A gigawatt (GW) is a unit of power equal to one billion watts (10⁹ W). It represents extremely large amounts of power typically associated with major power plants, national electricity grids, and large-scale energy infrastructure.

The gigawatt became important with the development of large-scale power generation in the 20th century. It provided a convenient scale for describing the output of major power plants, particularly nuclear and large hydroelectric facilities, and became essential for energy policy and grid planning.

Gigawatts are used to measure the capacity of large power plants, national electricity consumption, renewable energy installations, and major industrial facilities. They're standard for describing nuclear plant output, large solar farms, and national energy statistics.