Mainstream Energy Solutions Limited (MESL) has awarded ANDRITZ a contract to modernise generating unit 2G4 at the Jebba hydropower plant in Nigeria.
The project is intended to improve the unit’s efficiency, power output and operational flexibility, supporting increased supplies of renewable electricity from the facility. It is the third unit upgrade contract awarded to ANDRITZ at Jebba, following the modernisation of units 2G6 and 2G5.
The order, valued in the mid double-digit million-euro range, will be included in ANDRITZ’s order intake for the second quarter of 2026.
Under the contract, ANDRITZ will supply electro- and hydromechanical equipment for unit 2G4, including a new turbine featuring a hydraulic propeller-type design, a new generator, auxiliary equipment and the intake gate.
The turbine design was developed jointly by ANDRITZ and MESL and is intended to enable deep part-load operation, improve efficiency and increase power output, allowing the operator to optimise generation performance and support Nigeria’s energy transition objectives.
“When we took over the Jebba power plant in 2013, it required extensive modernization. With ANDRITZ’s help, we are not only rehabilitating the plant but optimizing it. This allows us to provide a reliable supply of renewable electricity to a growing number of people across Nigeria,” said Engr. Lamu Audu, Managing Director and CEO of Mainstream Energy Solutions Limited.
Commissioned in 1985, the Jebba hydropower plant has six 96.4 MW turbines and a total installed capacity of 578.4 MW.
MESL operates four major hydroelectric facilities in Nigeria under concession agreements with the Federal Government of Nigeria. The company has a total installed generation capacity of 2,078 MW and produces more than 25% of the country’s electricity.
“Being selected for a third project at Jebba reflects the successful execution of the previous upgrades and the trust MESL places in our technology and project teams,” said Anton Schindele, Vice President Service and Rehab Austria of ANDRITZ. “Hydropower plays a central role in providing reliable renewable electricity, and we are pleased to continue supporting MESL in strengthening Nigeria’s power infrastructure.”
