Chernobyl Nuclear Power Plant

Radiation background in the Administrative building area is in average 65 microrentgens per hour, in the Shelter object's Observation pavilion area - 1,08 myllyrentgens per hour.
Controllable parameters of the Shelter object are within the limits established by Operational Regulations. According to monitoring systems data the maximal value of gamma - radiation rate inside the object has made 3403 Rontgens per hour, temperature near to Fuel Containing Materials is +29 degrees on Celsius. Exceeding of control levels of Shelter object condition parameters is not fixed.

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ISF-2

Interim Storage Facility (ISF-2)

ISF-2 construction is financed from Nuclear Safety Account in European Bank for Reconstruction and Development (EBRD).

ISF-2 Facility is intended for Spent Fuel Assemblies (SFA) and Additional Absorbers (AA), currently stored at Chernobyl NPP, acceptance, preparation for storage and storage.

ISF-2 Facility capacity:
ISF-2 will provide acceptance for storage, preparation for storage and storage within 100 years more than 21000 SFA RBMK-1000 with productivity 2500 SFA per year.

ISF-2 will consist of 2 parts:
1. Installation for Spent Fuel preparation for storage (ISFPS)
ISFPS function is preparation for storage and packing more than 21 thousand SFAs, about 2 thousand AAs and more than 23 thousand extension roads, transported from ChNPP Units 1, 2, 3 and from ISF-1. Installation is designed to ensure the minimal annual capacity for processing of 2500 SFAs or AAs.
2. Spent Fuel Storage Zone (SFSZ)
Following operations is carrying out in SFSZ:
• Transportation of the canisters, filled with Spent Nuclear Fuel from ISFPS in SFSZ with canisters manipulation and transportation system (CMTS);
• loading of canisters in horizontal concrete storage modules (CSM) with a design life-time 100 years.
• Storage of canisters with Nuclear Fuel within 100 years.

On September 17, 2007, SSE ChNPP and Holtec International concluded the Contract No. ChNPP/Ñ2/10/062 on ISF-2 completion. During 2009, due to work scope enlargement, two collateral agreements to the Contract were concluded to extend terms for work performance (without cost changing).
Currently, the following activities within the Contract are under performance:
• Support in conducting comprehensive national expertise of document package “SSE ChNPP. Interim Storage Facility for Spent Nuclear Fuel (ISF-2). Construction Completion Design” at the Central Service of “Ukrgosstroyekspertiza”.
• Support in performing expertise on NRS of Preliminary Safety Analysis Report (PSAR) of the Project “SSE ChNPP. Interim Storage Facility for Spent Nuclear Fuel (ISF-2). Construction Completion Design” at State Scientific-Technical Center for Nuclear and Radiation Safety.

For information.

At Chernobyl NPP Spent Fuel Assemblies storage (SFA) is carried out in Wet Type Storage Facility (ISF-1), in cooling pools of Spent Nuclear Fuel (SNF) at Units 1-3 and in Unit 3 Reactor.

During whole period of operation Chernobyl NPP accumulated at its site more than 21 thousand nuclear fuel assemblies.

Actually in four of five compartments of SSNF-1 cooling pool commissioned in 1986 there are more than 17 thousand fuel assemblies, that makes ~99 % from design capacity of storage facility. Fifth CP SSNF-1 compartment (capacity 4300 SFA) is reserve. Current designed SSNF-1 capacity does not allow locating all SFAs, available at ChNPP for long-term storage.

20.12.1995 “Memorandum of Understanding between Governments of G7 countries, Commission of European Community and Government of Ukraine about Chernobyl NPP shutdown” has been made.

According to the Comprehensive Program of Chernobyl NPP decommissioning, Interim Storage Facility (ISF-2) for Spent Nuclear Fuel is a condition for transition to the second stage of Chernobyl NPP decommissioning.

With the purpose to liberate ISF-1 and ChNPP Units from the Spent Nuclear Fuel and Spent Additional Absorbers Cabinet of Ministers of Ukraine issued Resolution dated November 29, 2000 No 1747 about necessity to construct Dry Type Storage Facility for Spent Nuclear Fuel.

Taking into account available in Ukraine and global experience of SF Management as result of open international tender, the dry storage in the tight canister located in ventilated concrete modules has been chosen for Chernobyl NPP’s SF.

12.11.1996 Grant Agreement No006 was signed between European Bank for Reconstruction and Development (EBRD), Government of Ukraine and Chernobyl NPP which was ratified by Verkhovna Rada of Ukraine 18.03.1997. The purpose of this Agreement is financing of facilities construction intended for Chernobyl NPP decommissioning, including Interim Storage Facility (ISF-2).

18.07.2007. Decision about Contract awarding to Holtec Int. Company for completion of Spent Nuclear Fuel Storage Facility construction and about funds allocation for this Project completion was made at Nuclear Safety Account Donors Assembly meeting.

17.09.2007. Contract for completion of Spent Nuclear Fuel Storage Facility construction was signed with Holtec Int. Company.

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