One nuclear reactor generating about 1GW of electricity per year requires about 1 sqkm of space, including the facility, and a safety zone. It provides electricity for 700,000 people (assuming 13,000kwh per year per capita).
To generate the same electricity, you need at LEAST 4,375 wind turbines, and an area of 325 sqkm. That’s assuming some very idealistic factors about capacity factors and availability. The more wind you have in the system, the more windmills you actually need per unit of energy required.
Let’s assume 320 million Americans: you will need at least 460GW electricity per year. If you were to provide that electricity exclusively from wind, you would need about 12.7 million turbines, and 952,000 sqkm of wind farm (the capacity factor at this rate of wind penetration needs to be at least 25, probably more, but let’s be generous) – about 10% of the total land area of the United States. Or an area almost 30% as large as India.
The material requirement for each of these turbines in terms of concrete, steel, rare earth metals (for the generators), the amount of roadways for this wind farm, the amount of labor, supplies, etc. etc. to keep the farms in good shape and updated is absolutely staggering. I don’t have the numbers for that, unfortunately.
Total cost, at $1.5M per installed MW (current numbers, which would actually increase if demand for wind turbines were to go up significantly): US$17 TRILLION
IF you were to provide the entire supply of electricity with nuclear reactors, you would need approximately 700 reactors at 1 GW each. Space requirement: approximately 800 sqkm – less than 1% of what is needed for wind. You would also need orders of magnitude less supplies, infrastructure, or labor.
Let’s assume a 1GW nuclear reactor costs about $2.5 bln, or $2.5Mln for each installed MW. Total cost: $1.4 trillion. About 8.4% of what the wind project would cost.
Anybody still think wind makes sense?