WITHIN THE SCOPE OF THE PROJECT, THE EXCAVATION WORKS OF A 13 KM LENGTH, EXCAVATION DIAMETER 4.5 M, INNER DIAMETER 3.5 m HORSE-SHOE SECTION TUNNEL SUPPORT WORKS AND TRANSPORTATION WAYS HAVE BEEN DONE.IT IS A REGULATOR TYPE FACILITY, THE INSTALLED POWER OF THE FACILITY IS 85 MW AND ANNUAL ENERGY PRODUCTION IS 420 MILLION KWH / YEAR.