Donald Trump on ‘Solar Wall’ Idea: ‘The Taller It Goes the More Valuable It Is’ Prison Planet.com Posted on June 22, 2017 Posted in Aggregated No Comments Tagged with Sci Tech Breitbart | President Donald Trump publicly proposed the idea of a “solar wall” on the Southern border, to help pay for the building costs. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email