Alstom wins contract for second unit rehab at 1,050-MW Markersbach pumped-storage project

Global technology manufacturer Alstom has received an order from Vattenfall Europe Generation AG to overhaul a synchronous generator at the 1,050-MW Markersbach pumped-storage hydropower plant on Germany’s Mittweida River.

The work calls for Alstom to deliver a new stator, bearings, bearing bracket and starting motor, in addition to disassembly, reassembly and commissioning services.

The contract is the second such contract for Alstom, which was offered the first in August 2014. The company said a contractual option covers the overhaul of Markersbach’s four remaining generators at a rate of one unit per year.

Work from the first contract is expected to be completed in the coming spring, with the second contract to be finished by February 2017.

Markersbach was commissioned in 1979 and is the second-largest pumped-storage project in Germany. Alstom said the rehabilitation project is necessary due to a number of machine components reaching the end of their service lives.

Vattenfall Europe Generation, the German unit of Sweden-based Vattenfall AB, has performed numerous modifications to Markersbach since it was put into operation. In 2013, it took bids to expand the upper and lower reservoirs of the project. In 2012, the utility took bids for concrete work at 11 hydro projects including Markersbach. Most recently, Vattenfall sought bids to upgrade and repair pump-turbines and other equipment in March 2014.

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Michael Harris formerly was Editor for HydroWorld.com.

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