BENISHANGUL-GUMUZ, ETHIOPIA - DECEMBER 06: The construction of Grand Renaissance Dam (Hidase Dam), which is reported to be 40% complete, continues on Blue Nile River in western Benishangul-Gumuz region of Ethiopia on December 06, 2014. The dam will be the largest hydroelectric power plant in Africa when completed with an estimated cost of $4.8 billion USD. (Photo by Minasse Wondimu Hailu/Anadolu Agency/Getty Images)
