August 1 (SeeNews) - Montenegrin power utility Elektroprivreda Crne Gore (EPCG) [MNG:EPCG] signed a 10.3 million euro ($12 million) contract for the overhaul of the Piva hydropower plant (HPP) with a tie-up of Slovenian company Litostroj and Swiss-based ABB, EPCG said.