The MV Karadeniz Powership İrem Sultan is a Liberia-flagged Powership, a floating power plant, owned and operated by Karpowership. Built in 1984 by the Fincantieri Marghera Shipyard in Venice, Italy and christened MV Nikolay Markin, she sailed as a barge carrier under various names and flags until in 2014 she was converted into a powership at the Sedef Shipyard in Tuzla, Istanbul, Turkey. She served in Nacala, Mozambique supplying electricity to Mozambique's power grid for land-locked Zambia. Currently, she serves in the Dominican Republic, and is stationed in Santo Domingo.
Barge carrier
She was built by the Fincantieri Marghera Shipyard in Venice, Italy with yard number 305 as a barge carrier (LASH carrier) in April 1984. The 157.75 m (LOA) long vessel has a beam of 29.00 m, a depth of 5.31 m and a draft of 4.43 m registered.<ref Two diesel engines of Type GMT BL230.12V (230x310) and two of Type GMT BL230.8V (230x310) manufactured by the Grandi Motori Trieste in Trieste, Italy give a total power of 8680 kW propelling the vessel at 12.8 knot.<ref By and 7982 NT, she has a cargo capacity of .<ref
She saw service under the names Nikolay Markin, Danube Express, Smit Enterprise and Enterprise before she was sold in August 2010 to Karpowership.<ref<ref