The memorandum of understanding with Romania's Societatea Nationala Nuclearelectrica (SNN) (ROSNN.BX), opens new tab was inked as Romanian Prime Minister Marcel Ciolacu travelled to Rome for a bilateral summit.
In a statement, Ansaldo said its Ansaldo Nucleare subsidiary would handle engineering and procurement for extending the life of Unit 1 of the Cernavoda plant, in consortium with Canada's Candu Energy and South Korea's Korea Hydro & Nuclear Power.
The Romanian national nuclear energy company SNN started in 2017 a refurbishment project of Unit 1 worth an estimated 1.85 billion euros and aimed at extending its lifespan by 30 years.
As part of Thursday's deal, Ansaldo Nucleare will also help SNN complete Units 3 and 4 of the Cernavoda plant, the Italian firm said.
Italian Prime Minister Giorgia Meloni, addressing the press at the Italy-Romania summit, hailed the agreement as "very significant ... in a particularly strategic sector for European development".