Independent (UK): Why are we asking this now? Two hugely ambitious power-generating schemes have been launched in recent weeks, one offering to create the world’s largest solar farm and the other to create the biggest hydroelectric dam on the planet. In both cases the location for the mega-projects is Africa: the solar-power scheme envisages harnessing the sun in the Moroccan and/or Algerian Sahara; while the hydroelectric plan centres on damming the mighty Congo River. What the two projects have in …