Development prospects of South-Ukraine electric power producing complex are determined on the basis of aims noted in “Energy strategy of the Ukraine till 2030” (in further it will be mentioned as “Energy Strategy”) on creating conditions for safe, reliable, and stable functioning of power engineering and maximally effective developing of it.
Energy Strategy provides increase plants output including SP (storage plant) and NPP (nuclear power plant) that will make it possible to improve national safety of the Ukraine in fuel and energy parameters. In accordance with the strategy of nuclear engineering development till 2030 it is necessary to put into operation 20-21 million of KW of substitute and additional facilities at NPP.
Reconstruction of the technological water supply system
To liberalize SU NPP capacities declared because of not sufficient cooling ability of Tashlyk water reservoir cooler it was developed and approved by the Order №498-р of the Cabinet of Ministers of the Ukraine dated of December 7, 2005 the Project “Reconstruction of the technological water supply system. Operation of Units 1-3 in Tashlyk water reservoir cooler and sprinkling basins of South-Ukraine NPP”.
The Project provides construction of 5 sprinkling basins in total efficiency of the sprinkling installations 67,5 м3/с.
Building of the facilities complex of sprinkling installations is foreseen on the left shore of Tashlyk water reservoir cooler in the distance of 1,5 km to the left of the NPP site. Siting of the facilities is foreseen taking into account configuration of the reservoir shoreline.
Basins are square with dimensions in the plan 135,0 х 390,0 m.
The depth in the basins is 0,50-0,80 m.
The basin bed level is 100,00 m.
According to the Assignment of the President of the Ukraine № 1-1/1477 dated of July 15, 2011 within the time limit till January 1, 2015 it is necessary to complete building of sprinkling basins for performance of the technological water supply system reconstruction of South-Ukraine NPP Units.
Power Generating Units life-time operation extension
Currently, SF “SUNPP” power units No. 1, 2, 3 are under long term operation.
Under the terms of the licences issued for the right of implementation of activities on the life cycle stage "operation of a nuclear installation", the life-time operation of the nuclear installations in the energy levels is limited:
– on power unit No. 1 till December 2, 2023;
– on power unit No. 2 till December 31, 2025;
– on power unit No. 3 till February 10, 2030.
Licence term on further operation of the power units is conducting a regular safety reassessment of SF “SUNPP” power units with registration of the report on the periodic safety reassessment and positive conclusions of the state expertise on nuclear and radiation safety regarding this document. In accordance with NP 306.2.141 – 2008 "General provisions of nuclear plants safety" a regular safety reassessment of a power unit is performed at least once in 10 years.
Currently, power unit No. 1 of SF “SUNPP” is being prepared for the regular safety reassessment. "Safety reassessment program of SF "South-Ukraine NPP power unit No. 1" is being formed in preparation of it. The program will include activities to enhance safety, safety activities to eliminate (or compensate) deviations from the requirements, norms, rules and standards on nuclear and radiation safety, activities of the ageing management programme, as well as the schedule of development and providing the State Nuclear Regulatory Inspectorate of Ukraine with sections of the report on the periodic safety reassessment.
The prospective plans include carrying out safety reassessment of SF “SUNPP” power units No. 2 and 3 before the limitation of their life-time operation is reached.
Construction of the Unit №4
In accordance with the preliminary approved design on SU NPP site there was foreseen to build four power generating units of total capacity 4000 MW. By the current time three WWER-1000 Units (3000 MW in total) were built. Commissioning of the Unit №4 was not performed in spite of many of buildings and facilities were constructed.
Taking into account favorable conditions for further development NPP as a part of the South-Ukraine electric power producing complex, existing Alexandrovka water storage basin and Tashlyk SP, developed infrastructure, geological-engineering conditions of the site, it is considered reasonable to construct SU NPP Unit № 4 with commissioning of it in the period of 2018-2020.
Scientific and technical Council of SE NNEGC “Eneroatom” reviewed justification materials concerning increase of the SU NPP capacity and recognized it is technically possible to place an additional power generating unit at the site of the NPP. It was made a decision about the necessity to start woks on the development of techno-economic justification for construction of the Unit № 4 at SU NPP site.
Tashlyk Storage Plant
In accordance with the Energy Strategy to increase regulating capacities which are extremely deficient in the integrated power grid (IPG) of the Ukraine, it was decided to complete constructing and to put into operation 4074 MW of pumped-hydrostorage capacities including completion and putting into operation Tashlyk Storage Plant as a part of six hydraulic units of the total capacity 900 MW. The design of completion of constructing Tashlyk Storage Plant was approved with the Order of the Cabinet of Ministers of the Ukraine № 1036-р dated of November 21, 2007.
At present works on construction of Tashlyk PSP start-up facilities as a part of the 3rd storage pump are ongoing; an assembly of a generator-motor rotor at the 3rd storage pump is in progress. Water power equipment for the 3rd storage pump is fully supplied, electrical equipment, automatic equipment and control systems are planned to be supplied starting from 2013.
Considering the Tender Terms and Conditions as per the Ukraine Law “On Public Procurement”, the rate of construction and installation works, scopes of design and survey work, time of equipment manufacture, its installation and commissioning, the realistic date for the start-up of the 3rd storage pump is 2014 under stable step financing, namely, the current year – 90 million UAH; 2013 – 453 million UAH; 2014 – 450 million UAH.