You didn't like the numbers from Sandia, then? Okay. No problem. Let's go by the numbers presented by Hayden (who happens to sit on the "Board of Academic and Scientific Advisors" of a US think tank sponsored by ExxonMobil).
No problem at all.
Foxfyre, citing an enthusiastic book review by the 'Heartland Institute', wrote:To produce as much energy as a conventional 1,000 megawatt power plant using solar would require a 127 square mile field of solar mirrors collecting enough heat to turn a turbine.
127 sq miles for 1 GW. Okay.
Now, the total Total Generating Capacity of the United States (at least as of January 1, 2004) was 948 gigawatts (GW). According to the
EIA.
Would probably be more by now, but lets just work with a number of 1,000 GW.
So, we'd need about 1,000 x 127 sq miles, or about 330,000 sq kilometres, if you wanted to cover the total generating capacity of all US power plants.
Total land area of the United States (according to
the CIA World Factbook): 9,161,923 sq km.
So, I guess we can agree that even by those
very pessimistic numbers, your
source must have been wrong. Completely wrong.
You're welcome.