"Watts" is a rate of using energy, not an amount of energy.
A broad-brush ballpark average rate of energy use by a household,
averaged over a very long period of time, is something like 1,000 watts.
So 2,500 megawatts of power is the rate needed to power
2.5 x 109 / 103 = 2.5 million homes.
3,000,000
Average power consumption for a person in the UK is 650 W. Assuming an average load of 3 kW per household 102 MW would power about 34,000 homes, sometimes more, sometimes less.
About a million homes.
1,000,000 megawatts or 1x10^12 watts which is 1,000,000,000,000 watts. The average laptop uses 15 to 60 watts to put that number in perspective.
A typical nuclear power plant produces 500 to 5000 megawatts of power. If we take 2000 as average, an average plant produces 2000 megawatt hours in an hour, or 48,000 megawatt hours in a day. But please note: Technically, this does not answer the question asked, because the question asked for megawatts, not megawatt hours. The question as asked is like asking how many horsepower a car can produce in a day. The measure of electrical output over a period of time is a watt hour, or, in this case, the megawatt hour. So the question answered was, "How many megawatt hours does a nuclear power plant make in a day?"
3,000,000
1.2 million homes
The average household in the United States uses about 8,900 kilowatt-hours of electricity each year. That is 8.9 megawatts. So 781/8.9 = 87 homes.
Average power consumption for a person in the UK is 650 W. Assuming an average load of 3 kW per household 102 MW would power about 34,000 homes, sometimes more, sometimes less.
Nothing.
A standard power station produces something like 500 megawatts. A standard wind turbine produces about 5 megawatts.
The same amount of megawatts as it takes to power it for a second, a minute, an hour, or a year. A watt, or a megawatt (million watts), is a unit of power, not of energy.
The Sun's power (about 386 billion billion megaWatts) is produced by nuclear fusion reactions. Please see related link for full information.
mega- means time 10^6, in other words, millionso 1660 Megawatts is the same as 1660 million watts is the same as 1.66 billion watts is the same as 1.66*10^9 watts.
1,000 Source: http://www.unitconversion.org/power/megawatts-to-kilowatts-conversion.html
100 mega watts
1 MW = 10 to the power 6 Watts (in the new wiki answers type face).