Cernavoda 4 is a 720MW nuclear reactor planned in Constanta, Romania. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the nuclear reactor is currently at the permitting stage. Post completion of the construction, the plant proponent is expected to achieve the first power from the reactor in 2031 and is planned for commissioning in the same year. Buy the profile here.


Cernavoda 4 is a Generation III nuclear reactor being developed by S.C. EnergoNuclear, the main contractor for the project.

The 720MW reactor is currently owned and will be operated by Societatea Nationala Nuclearelectrica. The company has a stake of 100%.

Cernavoda 4 is a type of PHWR reactor. It will feature 4,560 fuel assemblies in the core of reactor, the place where fission occurs and energy is released. Safety contol rods that are used to control the fission rate in the reactor will be 28 in number.

The reactor consists of 1 steam turbine.

The material used for the construction of the vessel will be Zr-Nb.

Development status

Post completion of construction, the reactor is planned to get commission in 2031.

Contractors Involved

The reactor system is likely to be supplied by Candu Energy.

For more details on Cernavoda 4, buy the profile here.

About S.C. EnergoNuclear

S.C. EnergoNuclear SA (EnergoNuclear), a subsidiary of Societatea Nationala Nuclearelectrica SA, is a nuclear energy company that constructs and operates various reactors. The company operates reactors at Cernavoda nuclear power plant in Romania. It constructs CANDU units on Cernavoda site by the means of Canadian Deuterium and Uranium technology. EnergoNuclear’s technology is a combination of reactivity control, control rooms, shutdown of the reactor, and emergency power supply. The company’s CANDU technology is designed for the generation and supply of electricity. EnergoNuclear is headquartered in Bucharest, Romania.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Power Intelligence Center, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide from announcement through to operation across all technologies and countries worldwide.