Zahesi is built on the river Mtkvari, near Mtskheta, near the outfall of River Mtkvari and Aragvi. HPP uses drop of the river Mtkvari drop in 11 km section. According to the project, the total reservoir created by the dam is 12.0-mln.m3 total capacity, live storage - 3.0-mln.m3, which is provided for daily regulation.
Zahesi was put into operation in 1927-39years. HPP installed capacity is 36.8 MW, design generation is 203.0-mln kW.h