Wikipedia Integrity All discussions on this article are hypothetical with no scientific basis in fact  The History talks about proposals  There is only one questionable Prototyope which is actuallty the jist of this entire article and very questionable at that  Then there is a Proposed solar tower projects with artists impressions and Financial feasibility as which there are no fuel costs that are feasible  Somebody is waiting for Alice in Wonderland to show up  This type of sciencefiction article should not be posted on Wikipedia with an introduction that scientific article  The introduction should state in bold face that it is a HYPOTHETICAL type of renewableenergy power plant that has been proposed but not actually ever produced   I agree its hypothetical this was made clear in the intro but Ive added the word proposed in the first sentence to make it clearer