ImWind, owner of the Tauernwindpark, has contracted Vestas to replace the existing 13 V66-1.75MW turbines with nine new V112-3.45MW machines.
The project was installed with 11 turbines in 2002, according to Windpower Intelligence, with a further two V60s added in 2004.
Due to its high altitude, Vestas has arranged to have special transport and lifting tools to be used at the project in order to get the larger turbines to the project site.
The new turbines will be installed on 106-metre site-specific towers, Vestas added, an option not in the firm's standard tower portfolio.
Each tower section will be 24 metres, instead of the standard 30 metres, to aid transportation, and a transporter with a crane lifter will be deployed to transport the blades, the manufacterer said.