Negotiated invitation to tender, deadline 30.01.2013, for detailed project for exploratory tunnel and holes for cavern of Tauernmoos power plant in the Pinzgau region. The exploratory tunnel will be used as cavern access. The new pumped-storage scheme will provide additional regulating power for the railway electrical supply grid. Contract duration 01.08.2013-31.12.2013. Contact OEBB, Eng Hubert Schwaiger, Vienna, tel +43 51293000-4290, fax -5088, e-mail hubert.schwaiger@oebb.at. Further information from https://www.ava-online.at, to whom tenders or requests to participate must be sent. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=017478-2013. 04/13.