Bulgaria – Construction work for water projects

The order aims to replace the turbine of the existing hydro unit 4 (XA4), ensuring its adaptation to the other systems of the hydro unit and the PVPP, as well as to ensure participation in the primary and secondary regulation of the network frequency and the power supply of corridors for emergency restoration of the energy system. The scope includes design, manufacture, delivery of the equipment, dismantling of the existing and installation of the supplied new equipment, author's supervision, supervision, adjustment, testing and commissioning, personnel training and warranty service of all equipment specified below. The contractor shall supply all basic and auxiliary materials necessary for the dismantling and installation of the equipment and systems subject to the supply. The supplies will include: a new pump-turbine to replace the existing one on XA4, fully equipped with all necessary equipment and systems; general necessary auxiliary equipment and materials; spare parts for a 5-year operating period; special devices and tools necessary for dismantling, installation, maintenance and repair of the supplied equipment. The services subject to the order include the preparation of projects for the pump-turbine of XA4 and adaptation to existing systems, dismantling of existing building structures, facilities and systems, preparation of the installation site, construction and installation works of the supplied facilities and systems, repair works, author's supervision, supervision, adjustment, testing and commissioning, personnel training and elimination of defects during the warranty period. All projects prepared in the course of the execution of the order will become the property of the Contracting Authority. The technical requirements and conditions for the execution of the order are described in the Technical Specification.