Construction of Storage Module, Phase 4 of KKÁT Phase III
This tender has been awarded
Awarded to Mészáros és Mészáros Ipari, Kereskedelmi és Szolgáltató Zártkörűen Működő Részvénytársaság; Pintér Művek Korlátolt Felelősségű Társaság — €46,745,859,504
About This Opportunity
TranslatedThis tender concerns the construction of a new storage building as part of Phase 4 of the KKÁT (Nuclear Energy Power Plant) Phase III expansion. The project involves the expansion of an operational nuclear facility with a new storage building designed for the interim storage of spent fuel cassettes using a Modular Dry Vault Storage (MVDS) system. The scope of work includes the construction of a five-chamber building, modification and expansion of existing technological systems, manufacturing and installation of new nuclear system components, and commissioning of the affected systems. Key work packages detailed in the tender include: concrete technology design and testing, manufacturing and assembly technology plans, procurement and authorization plans, construction of internal walls, general organization, geodetic surveys, expansion of the sprinkler system, modifications to the physical protection system including fencing, construction of rainwater drainage channels, fine grading and turfing, renovation of patrol routes, waterproofing of the foundation slab and installation of a leachate collection system, waterproofing of the foundation slab against rainwater, construction of reinforced concrete structures (monolithic and precast), steel structures for the loading hall, chimney covering, emergency stairs, facade enclosures, locksmith works, coatings and surface treatments (decontaminable and other), and paving in front of intake openings, along with the loading deck and architectural connection elements. The project is situated within an existing nuclear facility, requiring adherence to strict safety and regulatory standards.
This is a works contract in the energy and power, construction and civil works and architecture and engineering sectors, with a focus on Nuclear, Buildings, Construction Supervision and Project Management. Located in Hungary, Europe, this opportunity is open to firms and consortiums.
Published through TED - Tenders Electronic Daily (EU), a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for civil works in the energy and power sector. Works contracts of this nature generally require demonstrated experience in similar infrastructure projects, adequate equipment and technical personnel, and financial capacity including bank guarantees. This contract has already been awarded. The information is published for transparency and market intelligence purposes.
Description
Auto-translated from huIn connection with the construction of Phase 4 of KKÁT Phase III, the expansion of the operating nuclear facility with a new storage building. The expansion consists of the construction of a building suitable for the temporary storage of spent fuel assemblies using a five-chamber MVDS (Modular Dry Vault Storage) system, the modification and expansion of existing technological systems, the manufacturing and assembly of new nuclear system components, and the commissioning of the affected systems, according to the following work packages: 1. Concrete technology plan and tests (4 pcs) 2. Manufacturing technology plans (12 pcs) 3. Assembly technology plans (10 pcs) 4. Procurement approval plan (1 pc) 5. Temporary wall plan in the -18. frame position (~320 m2) 6. General organization (1 pc) 7. Geodesy (~494 engineer-days) 8. Irrigation network expansion (~450 linear meters of irrigation network) 9. Construction works for the modification of the physical protection system (~190 linear meters of protective fence) 10. Stormwater drain connections and construction of drainage channels (~85 linear meters of stormwater drainage) 11. Fine grading (~5400 m2 turfing) 12. Patrol route renovation (~2500 m2 asphalt road) 13. Base slab damp proofing and leachate collection system (~1700 m2 insulation) 14. Base slab rainwater proofing (~490 m2 insulation) 15. Base slab reinforced concrete structure (~1800 m3 XV2(H) monolithic reinforced concrete) 16. Rising reinforced concrete structures (~3400 m3 XV2(H) monolithic reinforced concrete) 17. Prefabricated reinforced concrete structures (~108 m3 prefabricated reinforced concrete) 18. Loading hall steel structure (~85000 kg steel structure) 19. Chimney cover steel structure (~40000 kg steel structure) 20. Emergency stair steel structure (~10600 kg steel structure) 21. Facade enclosure elements (~1700 m2 enclosure) 22. Locksmith structures (~7500 kg steel structure) 23. Coatings, surface treatments (~1500 m2 decontaminable coating, ~5800 m2 other coating) 24. Fence and paving in front of intake openings (~250 m2 paving) 25. Loading deck and architectural connection elements (20 pcs concrete-filled lower loading deck elements with dimensions 6000x2166 to 2748x630mm, total 416800kg, and 20 pcs solid steel upper loading deck elements with dimensions 6000x2194 to 2772x360mm, total 503650 kg, and 171930 kg other steel structure) 26. Storage tube and storage tube support structures (3515 pcs storage tubes, total 1121285 kg, and ~91650 kg other steel structure) 27. Transporter rail and sliding contact conductor system (~44.1 m rail, 1 system) 28. Storage tube monitoring system (1 system) 29. Loading hall air sampling system (1 system) 30. 4 t capacity service crane (~47.7 m crane runway) 31. Construction site power supply and grounding connections (1 system) 32. Fire alarm system expansion (1 system) 33. Low-voltage systems expansion (1 system) 34. Electrical technology expansion (1 system) 35. Electrical installation and lightning protection expansion (1 system) 36. Transporter control system modification (1 system) 37. Ventilation, window actuator system expansion (1 system) 38. Radiation monitoring system expansion (1 system) 39. Storage tube monitoring control system expansion (1 system) 40. Modification of area lighting for road construction (1 system) 41. Installation of a temporary camera system for recording construction work processes (1 system) 42. Quality and environmental plan preparation (1 pc) 43. Work safety and health protection plan (1 pc) 44. Sub-organizational plans (4 pcs) 45. Operation and periodic maintenance of the construction site power grid as required by standards (56 months) 46. DATRAK system installation, operation, and maintenance 47. Transporter control system modification Optional framework amount - Safeguard camera system cabling works - Trial of pile wall execution - Pile wall driving - Pile wall dismantling The details of the tasks are contained in the draft contract and its annexes. The following works will be carried out during the performance of the contract (the exact value will be specified in the planning documents...
Data provenance
This notice is sourced from TED - Tenders Electronic Daily (EU) and was originally published on December 16, 2025. Last refreshed 10 days ago. Original language: hu. BidsFactory mirrors official procurement notices and links back to the source for full legal text.
About Radioaktív Hulladékokat Kezelő Közhasznú Nonprofit Kft.
Radioaktív Hulladékokat Kezelő Közhasznú Nonprofit Kft. has issued 23 procurement notices on BidsFactory, including 3 currently open and 4 awarded contracts. Activity concentrates in General Supplies & Services, Architecture & Engineering Services, and Research & Innovation. All notices are published for Hungary. Notices are distributed via Hungary EKR and TED - Tenders Electronic Daily (EU). Most recent publication: August 10, 2026.
Frequently asked questions about this tender
Is this tender still open?
No — the contract has already been awarded to Mészáros és Mészáros Ipari, Kereskedelmi és Szolgáltató Zártkörűen Működő Részvénytársaság; Pintér Művek Korlátolt Felelősségű Társaság. The award notice is archived on BidsFactory for transparency and market intelligence.
Who is the contracting authority?
This notice was issued by Radioaktív Hulladékokat Kezelő Közhasznú Nonprofit Kft. in Hungary. The authority is responsible for evaluating bids, awarding the contract, and managing performance.
What type of contract is this?
This is a Works contract in the Energy & Power sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.
How much was the contract awarded for?
Mészáros és Mészáros Ipari, Kereskedelmi és Szolgáltató Zártkörűen Működő Részvénytársaság; Pintér Művek Korlátolt Felelősségű Társaság was awarded the contract for €46,745,859,504. The figure reflects the value disclosed by the contracting authority in the award notice.
Where will the contract be performed?
The contract is for delivery in Hungary. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.
How can I submit a bid?
Visit TED - Tenders Electronic Daily (EU) to access the full notice, required documents, and submission instructions provided by the contracting authority.
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