Rehabilitation works for 110-400 kV substations February 2, 2018 | Europe Tenders Competitive bids are invited the rehabilitation of 400 kV Skopje 4, 400 kV Bitola 2, 110 kV Valandovo and 110 kV Oslomej substations. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password