Until the HPP construction Mtkvari riverbed has been greatly baring and high walls had been bringing in sharp dissonance in the general ensemble of landmarks of Tbilisi city. After building Ortachala HPP, surrounding areas of river subordinated to modern approaches to city development.
Ortachala HPP was put into exploitation in 1954 year. It works with seasonal schedule, without regulation. HPP design-installed capacity is 18.0 MW, design generation of electro energy – 90.0-mln kW.h.