Tanzania has just crossed a historic energy milestone. The country has officially brought online the Julius Nyerere hydropower plant, the largest facility of its kind in East Africa, at a ceremony led by President Samia Suluhu Hassan. Egyptian Prime Minister Mostafa Madbouly, standing in for President Abdel Fattah al-Sissi, also attended the event, a presence that was far from incidental given that the project was carried out by an Egyptian consortium.
Built on the Rufiji River in the Pwani region, roughly 250 kilometers southwest of Dar es Salaam, the plant boasts an installed capacity of 2,115 megawatts spread across nine turbines of 235 megawatts each, supplied by China’s Dongfang Electric. The project represents a total investment of around 2.9 billion dollars, fully backed by Tanzanian public funds through the state utility Tanzania Electric Supply Company. Construction employed close to 14,000 local workers and was carried out by Egyptian firms Arab Contractors and Elsewedy Electric, both well versed in major hydraulic projects along the Nile basin.
The launch formally places Tanzania among a select group of African nations capable of operating hydropower units exceeding two gigawatts. In practical terms, the country’s installed electricity capacity now stands at roughly 4,646 megawatts, an unprecedented level. Against peak demand estimated at somewhere between 2,100 and 2,300 megawatts, the country now holds a substantial surplus, one the government intends to put to use through electricity trade with its regional neighbors.
This breakthrough addresses a very real economic urgency. Chronic power cuts had long eaten into a significant share of local businesses’ annual production time, holding back the country’s industrial momentum. Tanzania’s Energy Minister stressed that this launch marks the culmination of sustained efforts to put an end to the electricity shortages and blackouts that had weighed heavily on the national economy.
Hydropower now sits at the heart of Tanzania’s energy mix, supplying the bulk of national output ahead of natural gas. Beyond its role in power generation, the dam’s reservoir, with a capacity of 34 billion cubic meters, will also help regulate flooding along the Rufiji River, strengthening the region’s resilience against climate-related risks.
Analysts see the project’s significance extending well beyond electricity output. A more abundant and stable energy supply should lower production costs for local manufacturers and draw investment into higher value-added sectors, starting with mineral processing and agribusiness. Tanzania’s economy could gradually shed its reliance on diesel generators and energy imports, a shift in direction for a country where access to electricity has long been a major obstacle to growth.
One question still looms large, and Tanzanian authorities are now raising it openly: how to fund the next wave of major infrastructure projects without piling on more public debt. Between this dam and other landmark undertakings such as the standard gauge railway, the resources mobilized already exceed ten billion dollars, for an economy whose annual GDP hovers around eighty billion dollars. Mindful of this constraint, the government has already signaled its intent to steer upcoming foreign direct investment toward the manufacturing sector and small and medium enterprises, rather than continuing to concentrate funding on new mega infrastructure projects.