TABLE 1: Refurbished power stations Power Station Debris Handling Year of construction Start of refurbishment Gralla driven container wagon 1964 1998 Pernegg driven container wagon 1927 1999 Laufnitzdorf backed-up container wagon 1931 1999 St. Dionysen backed-up container wagon 1942 1999 Gabersdorf Truck 1974 2000 Spielfeld Truck 1981 2002 Obervogau Truck 1977 2002