Table 1: Comparison of parameters of the HPPs before and after rehabilitation

*The measurement before rehabilitation was not performed. The peak measured value of turbine efficiency form the site efficiency test is 92.4%

SHPP Dosnica Kalimanci Matka Pena Pesocani Sapuncica Zrnovci
Commissioning Year 1952 1970 1938 1926/84 1951 1952 1950
Installed Capacity [MW] 4.62 12.00 4.21 2.50 2.74 2.91 1.40
No. of Units 3 2 3 2 2 2 2
Turbine type Pelton horizontal Francis vertical Francis vertical Francis horizontal Pelton horizontal Pelton horizontal Pelton horizontal
Discharge [m3/sec] 2.1 18.0 19.5 4.0 1.2 0.8 0.8
Head [m] 232.7 80.0 24.5 72.0 291.1 412.0 215.0
Commissioning Year 2008 2006 2008 2007 2008 2007/2008 2009
Installed Capacity [MW] 5.28 12.48 9.60 3.30 3.52 3.20 1.76
No. of Units 3 2 2 2 2 2 2
Turbine type Pelton horizontal Francis vertical Kaplan vertical Francis horizontal Pelton horizontal Pelton horizontal Pelton horizontal
Discharge [m3/sec] 2.4 18.0 42.0 5.0 1.4 0.9 0.9
Head [m] 232.7 80.0 24.5 72.0 291.1 412.0 215.0
Unit peak efficiency increase [%] 10.1 N/A* N/A** 10.7 9.3 12.9 10.6