In the construction of photovoltaic projects , we always hear about gigawatt (GW), megawatt (MW), kilowatt (KW), watt (W) and other units. In the market of large-scale expansion of production in the industry, projects basically start with gigawatt, as long as the enterprise has a big appetite, it will not be capped.
So what exactly does 1 GW mean? Today, let's do a simple calculation.
1GW=1000MW=1000,000KW=1000,000,000 W
(watt) is the unit of power in the International System of Units, which is explained in Baidu Encyclopedia as: Watt is defined as 1 joule per second (1 J/s), that is, the amount of energy (measured in joules) converted, used or dissipated per second. In
life, the power of a light bulb varies from several watts to tens of watts, the power of an air conditioner is more than 1000 watts, and the power of an electric fan is about tens of watts.
The electricity used by an electric fan in an hour is simply calculated as power consumption = power * time , and the unit of power consumption is kilowatt hour (kW · H) . That is to say, we often say "degrees" in our life, which means several degrees of electricity.
So for 1 GW, it's understood in this way that
if you press & nbsp; Five square meters of 1 kilowatt photovoltaic panels can be installed, and 1 GW can be installed 5 million square meters, which is about the size of 700 football fields (standard football field size: 7140 square meters). It can generate 800,000 kilowatt-hours of electricity in an hour, that is , 800,000 kilowatt-hours .
The above example is more vivid. According to the data released by the National Energy Administration in the first half of this year, the electricity consumption of the whole society in China reached 4307.6 billion kilowatt-hours (kilowatt-hours), calculated according to the total population of 1.412 billion. Per capita monthly electricity consumption is 508.45 kwh . (Of course, under normal circumstances, industrial and commercial electricity accounts for the majority, which can not be so rough.)
800000 kilowatt-hours of electricity is about enough for 459 individuals to use for a month .
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