ANDRITZ Hydro business division key visual

Hydro service and rehabilitation in USA

ANDRITZ has refurbished seventy hydropower units in the United States representing about 54% of fleet share of the countries total installed capacity.

Innovative modernization measures increase the profitability and lifespan of hydropower assets. Services of the company range from operation and maintenance, to long-term optimizations as well as digitalization and automation. Repairs and spare parts deliveries are also part of the portfolio.

Key Highlights

John Day Lock

ANDRITZ was awarded a contract for the upgrade of the Kaplan turbine hubs of the John Day Lock and Dam hydropower station, in the northwest of the United States of America. ANDRITZ will disassemble the entire turbine-generator unit, repair the Kaplan runner on-site, replace as needed wearing components, install new runner hub internals, refurbish as-required mechanical components off-site, reassemble the unit, and perform testing and commissioning after the installation. Following the repair, all the runners under the contract will function as double-regulated Kaplan runners.

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Do you have questions? Please send us an email or give us a call +1 704 943 4343.

Grand Coulee


Collierville Generator Rewind Project


The Collierville power plant has two units, each generator rated at 140MVA. The rewind project includes the design, manufacture, and delivery of new Roebel bars, removal of existing windings, inspection and evaluation of stator core as well as installation of new windings. On-site generator disassembly, reassembly, testing and commissioning after reassembly is also in the scope of deliveries. The contract was awarded at the beginning of March 2018 and the first unit was turned over and back online in early December 2018, two weeks ahead of the schedule. Right after the completion of the first unit, the customer released the notice to proceed of the second unit, which is expected to complete before Thanksgiving 2019.

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10735 David Taylor Drive, Suite 500
28262 Charlotte NC
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  • Service and rehabilitation PDF : 5.3 MB
  • Company presentation PDF : 7.5 MB