Kozloduy Nuclear Expansion Could Add €55 Billion to Bulgaria's Economy Over 60 Years

The Numbers Behind the Promise

Bulgaria's planned expansion of the Kozloduy Nuclear Power Plant could generate up to €55 billion for the country's economy over the reactors' estimated 60-year operational lifetime, according to project representatives presenting updated progress in Sofia on 20 May 2026.

That figure has not been independently verified. It comes from a briefing involving Kozloduy NPP - New Capacity, Westinghouse, and Hyundai E&C, which laid out projections for constructing Units 7 and 8 at the existing nuclear site on the Danube.

Executive Director Petyo Ivanov said the construction phase alone, expected to last around a decade, could contribute approximately 1% annually to GDP growth. Over the full operational cycle, he estimated the two reactors would deliver an average long-term GDP contribution of around 0.8% per year.

Those are company projections. Ivanov stressed that final cost parameters and the future electricity price will only be clarified after the Engineering, Procurement and Construction (EPC) contract is signed. Until then, no binding financial projections exist.

The Regulatory Gate

Westinghouse representatives confirmed that the AP1000 reactors are currently expected to begin operations in 2037. That timeline hinges on a critical approval from the European Commission.

The Commission's regulatory clearance is required before Bulgaria can move forward with the investment framework and complete the financial model. The approval process for large nuclear infrastructure in EU member states typically involves environmental assessments, safety standards review, and financial compliance checks. It can take years. No timeline for the Commission's decision has been disclosed.

Senior vice president Joel Eacker said extensive preparatory work has already been completed, including technical studies in Bulgaria and early efforts to develop a domestic supply chain. Work is also underway preparing documentation for bank financing. Westinghouse has signed 36 memoranda of understanding with Bulgarian suppliers.

Eacker emphasised that local engineering companies are actively involved and that European-produced steel is being used. Planning is already in place for equipment delivery and project execution, contingent on regulatory approval.

Construction Timelines and Risk

Hyundai E&C's global project leader Kiwon Lee said a preliminary risk assessment for the AP1000 construction at the Kozloduy site has been completed. Teams are now focused on finalising an integrated timeline and financial framework, along with permitting procedures and supply chain development.

"We are accelerating the overall process and maintaining close coordination with the Nuclear Regulatory Agency," Lee noted.

Nuclear projects of this scale have a history of delays and cost overruns across Eastern Europe and beyond. Similar expansions in the region have experienced timeline extensions and budget increases. The 2037 operational date should be treated as an estimate subject to regulatory, financial, and construction risks.

Westinghouse senior vice president Ellis Gedeon underlined the broader global context, stating that roughly half of the world's operating nuclear plants already use the company's technology. He pointed to rising demand for nuclear energy driven by decarbonisation goals, energy security concerns, and stable electricity supply needs.

What This Means for British Expats

For British expats in Bulgaria, the Kozloduy expansion has practical implications for long-term energy costs and grid stability. Nuclear power currently provides a significant share of Bulgaria's electricity. Two modern reactors should help keep future energy prices competitive while reducing reliance on imported fuels.

The decade-long construction phase will create demand for skilled workers and professional services. That potentially opens opportunities for British nationals with relevant experience in engineering, project management, or regulatory compliance. Post-Brexit, British companies have sought greater engagement in Eastern European energy markets. This project may present commercial opportunities for UK firms with nuclear sector expertise, though no UK involvement has been announced.

The economic projections, however, remain company estimates rather than independently verified forecasts. The €55 billion figure and GDP contribution estimates come from project representatives and executives, not from government analysis or independent economic institutes. Factors that could alter the expected economic impact include construction delays, regulatory hurdles, budget increases, and shifts in energy market conditions over the next decade.

European Commission approval, which has not yet been granted, will determine whether the project proceeds as planned. Until the EPC contract is signed and the financial model finalised, uncertainty remains around the project's ultimate cost, the electricity prices it will deliver, and the actual economic contribution it will make to Bulgaria's GDP.

The project timeline stretches well beyond most planning horizons. British expats considering long-term residence in Bulgaria should view the energy security benefits as a potential advantage, but one that will not materialise for more than a decade, and one subject to the standard risks that accompany projects of this scale and complexity.

The gap between what nuclear projects promise at announcement and what they deliver at completion is a familiar one. Bulgaria's Kozloduy expansion may prove the exception. Until the EPC contract is signed, the Commission approves, and construction actually begins, it remains a set of projections rather than a certainty.