sparked a diplomatic dispute between egypt and ethiopia the construction off the grand ethiopian bernay sandstad is nearly complete if you expect filling it this year with water from the blue nile valley egypt relies on the nile for 90 percent of its water supply and fears it could have a shortage of water when ethiopia starts to fill the dam now more about the diplomatic fallout in a moment but 1st our reporter traveled to the site of the megaprojects a concrete colossus 145 meters high construction work covering a total of 11 square kilometers it's poised to become the country's biggest source of electricity. project is no well underway. is the biggest construction site in the country and africa's largest hydroelectric paradigm it is almost 2 kilometers long and will produce more than 15000 hour of electricity starting 2022 using the waters of the blue nile river as the year the double potentially provide power for tens of millions of ethiopian households and a significant part of the electricity will be sold to neighboring countries to complete the project in time $6000.00 employees are worki