Voith Hydro won the order to upgrade the power units from the Coo I section at Belgium’s largest pumped storage power plant, Coo-Trois-Ponts. The project will take four years and will bring an increase in capacity of 79 MW and performance. An international team of Voith Hydro experts in Germany and the USA will be responsible for the model testing. The subsequent work on turbines and generators to increase performance will be conducted partly on site in the power plant and partly at Voith’s facilities in Heidenheim. Among other things, new runners and distributors will be manufactured for the turbines. For the generators, the priority will be to improve cooling and insulation. For Voith Hydro, the project is an important follow-up order from its customer ENGIE Electrabel. Previously, Voith had completed an automation contract that already included the supply of new control and excitation technology as well as speed governors for the power plant’s six machines.

photo credits: Voith