Rioni HPP is an average-head derivation type plant. It’s built on the river Rioni, in Kutaisi. The Rioni headquarter is located in the borders of Kutaisi, the power knot is near the railway station "Rioni. It works with seasonal schedule, without regulation.
Rioni HPP was put into exploitation in 1934. HPP design generation is 314.0 kW.h.
As a result of the reconstruction of №4 and №2 hydro power units (replacement of the generator), the installed capacity of the HPP has increased to 54.0 MW, instead of the projected 48.0 MW.