Table 2: The main parameters of Dob(Funny Character)in, Ru(Funny Character)in, Liptovsk Mara and (Funny Character)ierny Vh I hydro power plants Name of plant Year of operation Range of heads m Installed capacity – MW Production – GWh/yr Primary Secondary Dob(Funny Character)in I 1953 283.5 258 21.6 28.3 21.3 Ru(Funny Character)n I 1972 52.7 30 60.0 41 95 Liptovsk Mara 1975 48.2 17.5 198 77.3 191.6 (Funny Character)ierny Vh I 1981 434 401.5 664.7 – 1281.3