The information for section "Activities", subsection "Development prospects" of the web site of SF “SUNPP”
Reconstruction of the technological water supply system
The project "Reconstruction of the technological water supply system. Operation of units 1-3 in Tashlyk water reservoir and spray cooling ponds of South-Ukraine NPP" was developed and approved by the Cabinet of Ministers of Ukraine dated December 5, 2018 No. 956-r. according to the action plan for the implementation phase of the "Reform of the energy sector (until 2020)" of the Energy strategy of Ukraine till 2035 "Security, energy efficiency, competitiveness", approved by decree No.497-r of the Cabinet of Ministers of Ukraine dated June 6, 2018 to remove the limitation power of SUNPP caused by insufficient cooling capacity of Tashlyk cooling water body.
The project envisages construction of five spray cooling ponds with a total capacity of 67,5 m3/h. The size of one pond is 55 300 m2.
- facility is located on the left shore of Tashlyk cooling water body. land area allotted for construction of the object – 77,025 ha.
Total length of pipelines – 6 861 m.
The number of nozzles – 1875 pcs (5х325).
Commissioning of the technological water supply system will enable you to achieve optimal operational conditions for the NPP three power units which will lead to an additional average annual electricity output of approximately 700 million kWh and will ensure the implementation of the project for increasing the upper water body of Tashlyk pumped storage plant.
The project is implemented in four stages (construction phase):
The first stage includes: construction of spray cooling ponds 1 and 2 with main pipelines for them, isolation dams, intake structures of water pump house supplying water to the spray cooling ponds, construction of water pump house supplying water to the spray cooling ponds with installation of two main pumps and process equipment.
The second stage includes: installation of main pump unit 3 supplying water to spray cooling pond 3 with technological equipment in water pump house supplying water to the spray cooling ponds; construction of spray cooling pond 3 with main pipelines for it.
The third stage includes: installation of main pump unit 4 supplying water to spray cooling pond 4 with technological equipment in water pump house supplying water to the spray cooling ponds; construction of spray cooling pond 4 with main pipelines for it.
The fourth stage: installation of main pump unit 5 supplying water to spray cooling pond 5 with technological equipment in water pump house supplying water to the spray cooling ponds; construction of spray cooling pond 5 with main pipelines for it; relocation of existing city engineering networks from the spray cooling pond 5 construction area.
According to the approved by the president of SE "NNEGC "Energoatom" construction schedule, testing of the main equipment will be held in May 2020, and the commissioning of the entire complex is provided at the end of 2021.
Life-time operation extension for power units" of the web site of SF “SUNPP
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 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 Unit № 4 was not performed in spite of many buildings and facilities were constructed.
Taking into account favourable conditions for further development NPP as a part of the South-Ukraine electric power producing complex, existing Olexandrivka water reservoir and Tashlyk PSP, 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 “Energoatom” reviewed justification materials concerning increase of 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 Unit № 4 at SU NPP site.
Tashlyk Storage Plant
Completion of the construction of Tashlyk PSP comprising storage pumps № 3-6 will increase the maneuvering power of the power system of Ukraine and thus enhance its reliability.
In the fulfillment of particular instruction №01/22-0202 by the Ministry of Energy and Coal Industry of Ukraine dated 29.01.2015 regarding execution the fulfillment of the CMU Activity Programme approved by CMU Resolution №695 dated 09.12.2014 with amendments introduced by CMU Resolution №699 dated 11.12.2014, the provisions of the Agreement about creation of Deputy fractions coalition in the Verkhovna Rada of Ukraine of convocation VIII, the project is aligned with modern norms, rules and standards. It was examined and approved by SE "NAEK "Energoatom" order No. 222 dated 12.03.2019.
As of July 2019, the construction work of the Tashlyk PSP second stage comprising the storage pump 3 and the third stage comprising the upper water body were continued. The rotor is installed in a regular place in the shaft of the generator-generator on storage pump № 3. 15.75 kV power lines have been purchased and are being installed. The electrical equipment of the oscillating circuit is being purchased, which will allow assembling the scheme of power output from the generator-motor to the unit transformer for the year. The procedure for the procurement of unit transformer (supply in May 2020) has been started. Power supply systems for the operating equipment - diesel-engined power generating unit of the PSP building and water intake facility have been purchased, installation works are being held.
According to the approved by the president of SE "NNEGC "Energoatom" schedule, putting into trial operation of storage pump № 3 is planned for the first half of 2021, the second stage of the facility has been provided at the end of 2021.