10 November 2009 – Nampower awarded a contract to Alstom Hydro, the joint venture between power generation supplier Alstom and civil engineering group Bouygues, for equipment supply for a new 92 MW turbine-generator unit, at the Ruacana power plant, in Namibia

The contract, which was awarded to Alstom Hydro and its consortium partner Andritz Hydro, was estimated to be worth around $16-million.

The Ruacana power plant is located on the Kunene river on the border of Angola and is NamPower’s largest power plant, accounting for some 80% of Namibia’s annual electricity production. This new unit, which would serve as the main operating unit, would supply clean energy to the Namibian electricity network.

The project represented NamPower’s first major power plant investment in several years and would assist in satisfying growing national electricity demand while lowering the country’s dependence on imports.

Alstom’s scope of supply comprised one generator set, excitation system, control and protection system and electrical auxiliary systems, as well as the connection to the existing plant.

The consortium would handle the turnkey installation, commissioning and testing of the new unit, which has an output of 92 MW, greater than the existing three 82-MW units, an increased overall efficiency of 93,3% and a net head of 130,5 m. The start of commercial operation was planned for March 2012.

Alstom supplied hydro-mechanical equipment and other systems to the Ruacana power plant at the beginning of its construction in 1977.

Alstom Hydro has over 400 GW of turbines and generators installed worldwide, which represented more than 25% of the total global hydropower installed capacity.