Ats HPP is a medium head diversion hydroelectric power plant. It is built on the river Adjaristskali, 31 km from the city of Batumi, in the southwestern part of the Autonomous Republic of Adjara. It operates without regulation-“run-of-river”.
Ats HPP was put into operation in 1937, it was included in the energy system of Georgia in 1941. The design generation of electricity is 105.0 million kWh.
Reconstruction of №1 hydro unit was carried out at Ats HPP with increased capacity, as a result, the installed capacity of the HPP is 18.4 MW, instead of the design installed capacity of 16.0 MW.