Germany cancelled projects in Africa with HVDC cables up-continent when solar panel cost dropped to the point that they can just buy enough local panels to meet

Germany cancelled projects in Africa with HVDC cables up-continent when solar panel cost dropped to the point that they can just buy enough local panels to meet power needs. Siting panels in the desert is kind of stupid. The high temperatures make them less efficient, and degrade quicker. They would better be floated on reservoirs, constructed for the occasion if necessary. Nobody doesn't like more reservoirs, or shade for the reservoirs they have. The reservoirs could be kept full by desalinating water when power demand is lower.