The core specifications of Tanzania’s largest power station, in one place. Where sources differ slightly on a figure, we use the most widely reported value and round it.
Installed capacity
2,115 MW
Generating units
9 vertical Francis turbines, 235 MW each
Expected annual output
About 5,920 GWh
River
Rufiji River, at Stiegler's Gorge
Regions
Pwani (Coast) and Morogoro
Main dam
Roller-compacted concrete gravity dam, about 131 m high and just over 1 km long at the crest
Reservoir
About 34 billion m³
Spillway
Central spillway with 7 radial gates
Saddle dams
4
Grid connection
400 kV substation and transmission lines
Owner and operator
TANESCO (Tanzania Electric Supply Company)
Contractor
Arab Contractors and Elsewedy Electric (Egyptian joint venture)
EPC contract
About US\$2.9 billion, awarded December 2018
Total reported cost
TZS 7.45 trillion, financed by the Government of Tanzania
Construction began
2019
First power to grid
February 2024
Official inauguration
22 August 2026