Voith awarded automation upgrade contracts for Norway’s Tonstad, Solhom hydropower plants.

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Voith Hydro AS has been awarded a contract by Norwegian utility Sira-Kvina kraftselskap DA to upgrade control systems at the 960-MW Tonstad and 200-MW Solhom hydropower plants

The contract is worth more than US$38.84 million and includes the modernization of the plants’ old relay controls systems with programmable logic controller (PLC)-based systems.

“This is a really exciting and demanding project,” Voith project manager Torgeir Myrvold said. “There are several technical challenges, and we always have to consider that the other units in the plant will be in full operation during the modernization.”

Tonstad, located on Lake Homstolvatnet in Vest-Agder County, was put into operation in 1968 and is Norway’s largest hydroelectric project in terms of production. The facility houses five Francis turbines.

Meanwhile, Solhom is also located in Vest-Agder and has been in operation since 1974.

“We are very satisfied being awarded this prestigious project by Sira-Kvina,” Voith Hydro CEO Frode Moen said. “It is among the largest stand-alone automation contracts ever awarded within the Norwegian hydropower market.”

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