Ethiopia announced Friday it has completed the third filling of its mega-dam on the Blue Nile, a new milestone that could raise further tensions with downstream neighbors Egypt and Sudan.
The development comes a day after Ethiopia said it had launched electricity production from the second turbine at the Grand Ethiopian Renaissance Dam (GERD) in the northwest of the country.
"Today as you see behind me, the third filling is complete," Prime Minister Abiy Ahmed said from the dam site in images broadcast on state television.
"The Nile is a gift of God given to us for Ethiopians to make use of it."
The massive $4.2 billion dam, set to be the largest hydro-electric scheme in Africa, has been at the center of a regional dispute ever since Ethiopia broke ground on the project in 2011.
There is still no agreement between Ethiopia and its downstream neighbors Egypt and Sudan about the GERD's operations despite talks held under the auspices of the African Union.
Cairo and Khartoum view it as a threat because of their dependence on Nile waters.
But Ethiopia deems it essential for the electrification and development of Africa's second most populous nation.
It was one of Africa's fastest growing economies in recent years until war broke out in northern Ethiopia in November 2020 between federal government forces and Tigrayan rebels.
There was no immediate reaction from Egypt or Sudan about Friday's development.
But Egypt, an arid nation which relies on the Nile for about 97 percent of its irrigation and drinking water, last month protested to the UN Security Council that the third filling was under way.
Abiy nevertheless sought to reassure Egypt and Sudan over the impact of dam.
"When we set out to build a dam on the Nile, we said from the beginning that we did not want to make the river our own," he said on Twitter.
"We hope that just like Ethiopia, the other gifted nations of the Nile, Sudan and Egypt, will get to utilize their share."
On Thursday, he had called for negotiations to reach an understanding on the dam but insisted the third filling was not causing any water shortages downstream.
The process of filling the GERD's vast reservoir began in 2020 and it now contains 22 billion cubic meters of water out of a total capacity of 74 billion.
"Compared to last year, we have reached 600 meters which is 25 meters higher than the previous filling," Abiy said Friday.
Ethiopia first began generating electricity from the GERD in February. Currently, the two operational turbines, out of a total of 13, have a capacity to generate 750 megawatts of electricity.
It is ultimately expected to produce more than 5,000 megawatts, more than doubling Ethiopia's current output.
Project manager Kifle Horo said Thursday that overall the dam was now more than 83 percent complete and that the goal was for it to be finished in the next two and a half years.
The structure is 145-metres (475 feet) high and 1.8 kilometers long, straddling the Nile tributary in the Benishangul-Gumuz region of northwestern Ethiopia, not far from the border with Sudan.
The project was initiated under former prime minister Meles Zenawi, the Tigrayan leader who ruled Ethiopia for more than two decades until his death in 2012.