Nachtigal hydroelectric project: 420 MW and 2.9 TWh has been completed

We are pleased to announce the completion of the Nachtigal hydropower project, a work of great impact for Cameroon's energy development.



Nachtigal hydroelectric project completed

The Nachtigal Hydropower Plant (420 MW) in Cameroon has been completed by ATB Riva Calzoni and its partners. The plant will generate 2.9 TWh per year, covering 30 percent of the country’s energy demand.

Thanks to the collaboration between ATB Riva Calzoni, BESIX, NGE-BTP, SGTM, Nachtigal Hydro Power Company, and EDF, we have successfully delivered and installed the full package of hydromechanical equipment, which includes:

  • seven steel penstocks (diameter 5.6 m)  
  • pillway radial gates and stoplogs (17 m x 10.7 m dimension) 
  • gates and stoplogs for the power intake
  • draft tube stoplogs 

Key project figures  

  • installed capacity: 420 MW  
  • expected annual generation: 2.9 TWh  
  • share of national energy demand covered: approximately 30 percent  
  • penstocks: seven steel pipes, Ø 5.6 m  
  • partners involved: BESIX, NGE-BTP, SGTM, Nachtigal Hydro Power Company, EDF  

A milestone for Cameroon’s sustainability 

The Nachtigal plant is not only a large-scale infrastructure project but also a driver of sustainable growth. With nearly 3 TWh of clean energy produced each year, the plant will:

  • strengthen Cameroon’s energy self-sufficiency  
  • promote economic and social development in surrounding regions  
  • reduce CO₂ emissions through renewable energy  

The value of ATB Riva Calzoni’s excellence 

This achievement underlines our expertise in turnkey hydromechanical solutions. From design and manufacturing to installation and commissioning, our team ensured technical rigor, safety, and on-time delivery.

The completion of the Nachtigal project is a proud moment for all of us: a concrete example of how expertise, international collaboration, and cutting-edge technology can turn infrastructure challenges into long-term growth opportunities.

We thank all the partners and professionals who contributed to reaching this important milestone. We remain committed to driving forward innovative projects that foster sustainable development and the well-being of local communities.

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