view of powerhouse and penstock
Country: Built (year): Output (kw):
FYR Macedonia 1940 3 280
Head (m): Capacity (m3/s): Completation (year):
72 1 x 2, 1 x 3 2007
view of powerhouse and penstock
original Francis turbines before refurbishment
machinery room concreting
machinery room concreting
spiral cases
new Francis turbine
new generators


Project review

The HPP Pena is utilizing head of the snow-fed Pena River in a border area of peaks reaching over 2700 m above sea-level. It was already modernized in 1970s but during the construction works, improper turbines were used.

The rehabilitation consisted of output and capacity increase by 20%, replacement of the turbine and generators, installation of new substation, automation, and minor civil structures modifications.

Provided services

Hydropol was responsible for complete rehabilitation process, e.g. complex research, study and design, delivery of electromechanical equipment and necessary civil works, quality supervision, legal framework, and full project management.