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5 December 2007 -- Siemens Power Generation received a $170 million order from Tennessee Valley Authority to refurbish and upgrade the turbine island of the 1,200 MW Watts Bar 2 Nuclear Plant in Spring City, Tenn.

The Siemens scope of supply for Unit 2 includes one new high-pressure turbine; three new low-pressure turbines; complete modernization of the generator, including a RIGI-FLEX rewind of the stator and new retaining rings; exciter rotor refurbishment; six new moisture separator reheaters; plus multiple other components and more than 40,000 individual replacement parts. The HP turbine is planned for delivery in August 2009, and the three LP turbines in June 2010.

Construction on the Watts Bar 2 Plant was initially started in the 1970s, but, according to TVA, was never fully completed due to a reduction in predicted growth of power demand. TVA recently approved completion of the plant.

Watts Bar Unit 2 consists of one pressurized-water reactor and is sited next to Unit 1, which began commercial operation in 1996. Siemens has performed or received orders for 24 HP turbine modernizations and 53 LP turbine modernizations for nuclear power plants since 2000.

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