But let’s give the benefit of the doubt to Pickens and say that wind could make up the difference. How many windmills and land would be needed for it to work?
From the graph in my previous post, we have a power deficit of 300,000,000,000,000,000 British Thermal Units. This converted to kilowatt hours is 87 921 325 000 000 kWh. You need to get capacity to figure out how much space is needed, which is in units of kilowatts so you divide by the number of hours in a year, specifically 8420. That means you need to have 10441962589 kW of capacity to get this much power in a year.
But wind turbines don’t run 24 hours a day, in fact, they only run about 33 to 50% of the time, so you actually need double the capacity, AT BEST, to get the capacity needed. So you really need 20883925178 kW to supply the power importation needs for the US.
How much land would this require? For that I went here and used their calculator. The end results:
To get the US off foreign energy, we would need 41,767,850 turbines, which would cover 10,441,962.5 acres. This is also 16316 square miles. Or nearly the size of Vermont and New Hampshire COMBINED. And this is just for the physical items of turbines themselves.
Using a different method, a rule of thumb is that one square kilometer can support 10 to 15 MW of capacity. So using the figure above, we’d get 20883925 MW. So dividing by the best case scenario of 15 MW per square km, we get 1392262 sq. km or 537555 square miles. This is approximately the size of Texas, Oklahoma, Kansas, Nebraska and half of South Dakota, including urban areas, highways, mountains, and water.
So when T. Boone says that the Great Plains is the Saudi Arabia of wind, you better believe it because if we’re going to use wind to get the US energy independent, the Great Plains will become one giant wind farm.
And this is under a BEST case scenario. Just for fun, lets use the lower end of the power estimates (under the cut): Read the rest of this entry »