Nuclearelectrica Updates Contract Award for Cernavod? Nuclear Power Plant Unit 1 Refurbishment in Romania< Power and Energy

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Nuclearelectrica has published an updated contract award notice for the major refurbishment of Unit 1 at the Cernavodă Nuclear Power Plant in Romania. The procurement covers both construction works and supply of specialized nuclear equipment for the life extension of the country's only nuclear power facility. This change notice updates a previous award published in 2025, reflecting revised information on one of Europe's most significant nuclear infrastructure modernization projects.

Introduction

The life extension and modernization of existing nuclear power plants represent a critical priority for European nations seeking to maintain energy security while meeting decarbonization targets. In Romania, Nuclearelectrica has been advancing a comprehensive refurbishment program for Unit 1 at the Cernavodă Nuclear Power Plant, the country's sole nuclear facility based on CANDU reactor technology. This recent updated contract award notice reflects the ongoing progression of one of the most strategically important energy infrastructure projects in Southeastern Europe.

By publishing this change notice through the Official Journal of the European Union, the contracting authority ensures continued transparency and compliance with European public procurement regulations. The project encompasses both complex construction works and the supply of specialized nuclear components, requiring the highest standards of safety, quality assurance, and regulatory compliance. This holistic approach guarantees that the refurbished unit will operate safely and efficiently for an extended operational lifetime.

The strategic importance of this project extends beyond Romania's borders, as it demonstrates the viability of life extension programs for CANDU reactors worldwide. It also provides a stable pipeline of highly specialized work for domestic and international nuclear engineering firms, fostering economic stability within the regional supply chain and reinforcing Europe's commitment to nuclear energy as a cornerstone of clean power generation.

Why This Contract Matters

This procurement is vital for ensuring that Romania maintains its nuclear generating capacity, which provides approximately 20 percent of the country's electricity. The refurbishment of Unit 1 will extend its operational life by an estimated 30 years, securing long term baseload power generation that is essential for grid stability and energy independence. For the nuclear engineering sector, this contract award validates the capability of specialized firms to execute complex reactor refurbishment projects under stringent international safety standards.

It also demonstrates how national energy authorities leverage public procurement to drive continuous improvement in critical infrastructure. The project sets a benchmark for nuclear life extension programs across Europe and beyond. By mandating strict adherence to international nuclear safety standards and requiring the contractor to secure all regulatory approvals, the authority mitigates project delivery risks and ensures that the refurbished reactor meets the highest safety benchmarks.

Contract Timeline

The original contract award notice was published in 2025 under notice number 99381-2025. This change notice was dispatched on September 28, 2026, and published in the Official Journal of the European Union on September 30, 2026. The update reflects revised information on the previously awarded contract, indicating ongoing administrative and technical refinements to the project scope and execution plan.

The extended timeline reflects the complexity and duration inherent in nuclear refurbishment projects, which typically span several years from initial planning through to final commissioning and regulatory approval for restart.

Contract Overview

The agreement covers both construction works and the supply of specialized nuclear equipment for the comprehensive refurbishment of Unit 1 at the Cernavodă Nuclear Power Plant. The contract is classified under the standard regime for works and supplies, reflecting the dual nature of the project which requires both physical construction activities and the procurement of highly specialized nuclear components.

This structured approach places the responsibility for technical optimization, safety compliance, and delivery risk on the awarded contractors. The scope encompasses the replacement of critical reactor components, upgrading of safety systems, and modernization of auxiliary infrastructure to ensure the unit can operate safely for an additional 30 year period.

Key Contract Details

Project Scope

The core scope involves the comprehensive refurbishment of Unit 1 at the Cernavodă Nuclear Power Plant, which utilizes CANDU 6 reactor technology. The project includes the replacement of major reactor components such as pressure tubes, calandria tubes, and fuel channel assemblies, which are subject to degradation over the operational lifetime of the reactor.

Additionally, the scope encompasses the modernization of safety systems, instrumentation and control upgrades, and the refurbishment of turbine generator equipment. The contractor must ensure all works comply with the stringent requirements of the Romanian National Commission for Nuclear Activities Control and international nuclear safety standards established by the International Atomic Energy Agency. This extensive responsibility requires the winning bidder to possess deep expertise in nuclear engineering, project management, and regulatory compliance.

About the Contracting Authority

NUCLEARELECTRICA is the primary buyer for this procurement. It is Romania's national nuclear power producer, operating the Cernavodă Nuclear Power Plant and managing the country's nuclear energy program. The company is majority owned by the Romanian state and plays a pivotal role in ensuring national energy security and meeting the country's decarbonization commitments.

About the Organisations Involved

NUCLEARELECTRICA is the contracting authority and buyer. It manages Romania's nuclear power generation and drives the procurement of essential infrastructure works and equipment for the Cernavodă plant.

Publications Office of the European Union acts as the TED eSender. It is responsible for the official publication of procurement notices to ensure transparency and equal market access across the European continent.

Procurement Analysis

This notice is a change notice updating a previously published contract award from 2025. The original procurement attracted significant interest from specialized nuclear engineering consortia, reflecting the highly specialized nature of CANDU reactor refurbishment work. The evaluation focused on technical capability, nuclear safety expertise, and financial stability, given the extreme complexity and safety criticality of the project.

The decision to update the contract information indicates ongoing refinements to the project scope, timeline, or commercial terms, which is common for large scale nuclear infrastructure projects that span multiple years and require continuous alignment with evolving regulatory requirements and technical specifications.

Additional Procurement Facts

The procurement is covered by the Government Procurement Agreement, allowing international suppliers to participate alongside domestic entities. The project is of strategic national importance and is supported by the Romanian government as a key component of the national energy strategy. The Cernavodă Nuclear Power Plant uses CANDU technology developed in Canada, requiring specialized expertise and supply chains that span multiple countries.

Market and Industry Perspective

The European nuclear refurbishment market is characterized by a limited number of highly specialized firms capable of executing complex reactor life extension projects. The Cernavodă Unit 1 refurbishment is one of the largest such projects currently underway in Europe, attracting participation from major international nuclear engineering companies and specialized equipment manufacturers.

Suppliers must continuously update their technical methodologies and safety protocols to meet evolving compliance standards outlined by national nuclear regulators and international bodies. The dominance of large international consortia in this space suggests that future nuclear refurbishment RFPs and RFQs will continue to favor established contractors with proven track records in CANDU or similar reactor technologies.

Economic Significance

The Cernavodă Unit 1 refurbishment represents one of the largest single infrastructure investments in Romania's energy sector. This spending supports highly skilled jobs in nuclear engineering, project management, specialized manufacturing, and regulatory compliance across Romania and internationally.

By extending the operational life of Unit 1 by approximately 30 years, the project secures long term baseload electricity generation that is essential for Romania's energy independence and decarbonization goals. The multiplier effect of this spending extends beyond the primary contractors, benefiting downstream material suppliers, specialized logistics providers, and technical training organizations that support the broader nuclear ecosystem.

Future Procurement Opportunities

Suppliers should monitor the official Tenders Portal for upcoming procurement activities related to the Cernavodă refurbishment program, including subcontracts for specialized components, construction services, and technical consulting. As the project progresses, additional tenders opportunities will emerge for specific work packages and equipment supply contracts.

Stakeholders should also track the Latest Active Tenders Procurement notices to anticipate upcoming nuclear infrastructure projects in the broader European energy sector. Romania's plans for additional nuclear capacity, including new units at Cernavodă and small modular reactors, will generate significant procurement activity in the coming years.

Opportunities for Suppliers

While the primary refurbishment contract has been awarded, specialized subcontractors can find valuable opportunities. Firms with expertise in nuclear grade materials, specialized welding, non destructive testing, radiation protection, and nuclear instrumentation may position themselves to support the primary contractors in fulfilling the detailed technical requirements of the project.

What Businesses Should Watch

Industry observers should monitor the progress of the Cernavodă Unit 1 refurbishment to gauge the execution capacity of the awarded contractors under complex nuclear safety conditions. The successful completion of this project will set a benchmark for future CANDU reactor refurbishment programs worldwide.

Stakeholders should also review Live Notices for Tenders to anticipate upcoming nuclear modernization projects funded by national and European programs. Any shifts in European energy policy or nuclear safety regulations will directly influence future procurement volumes in this sector.

TendersOnTime.com Procurement Intelligence

This contract represents a clear trend in European public procurement toward the strategic life extension of existing nuclear power plants as a cornerstone of energy transition strategies. By investing in the comprehensive refurbishment of Unit 1 at Cernavodă, Romania is securing decades of clean baseload electricity generation while avoiding the higher costs and longer timelines associated with new nuclear construction. This approach is highly effective for maintaining energy security and meeting decarbonization targets simultaneously.

Strategically, this award is important because it demonstrates how national authorities can leverage international expertise and partnerships to execute complex nuclear infrastructure projects that exceed domestic capacity. To position themselves for future contracts, relevant suppliers must invest in nuclear grade quality management systems and ensure their operational practices align with the specific safety and regulatory requirements of nuclear power plant operations. Future contracts in this market are likely to evolve by incorporating even stricter safety and environmental mandates alongside traditional technical specifications.

Supplier Takeaways

• Nuclear refurbishment projects require proven expertise in reactor specific technologies and international safety standards.
• Meeting strict nuclear safety and regulatory baselines is a primary gateway for winning government nuclear infrastructure contracts.
• Forming international consortia is often necessary to combine the diverse expertise required for complex reactor refurbishment projects.
• Specialized nuclear grade material and testing providers can find valuable subcontracting opportunities with primary contractors.

Key Takeaways

• Nuclearelectrica updated the contract award for the Cernavodă Unit 1 nuclear power plant refurbishment.

The procurement covers both construction works and supply of specialized nuclear equipment.

• This change notice updates a previous award published in 2025 under notice number 99381-2025.
• The project will extend the operational life of Romania's only nuclear power plant by approximately 30 years.
• The procurement is of strategic national importance for Romania's energy security and decarbonization goals.

Conclusion

This contract update secures the continued progression of one of Europe's most significant nuclear infrastructure modernization projects. The transparent procurement process ensures optimal value for public money while supporting the domestic and international nuclear engineering industry and safeguarding Romania's long term energy security.

Source: Tenders Electronic Daily (TED), Contract Award Notice 674215-2026, Official Journal of the European Union, published on 30/09/2026.