Thanks for all the information. I think my assumption was that the book would be wrong for efficiency reasons but that it would not be multiple orders of magnit

Thanks for all the information. I think my assumption was that the book would be wrong for efficiency reasons but that it would not be multiple orders of magnitude wrong and that that kind of difference would be required. I suppose in addition to efficiency improvements I may have been overestimating the required solar panel density and underestimating how palatable they are to people.