Saeul 4 is a 1,400MW nuclear reactor planned in Ulsan, South Korea. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the nuclear reactor is currently at the under construction stage. The construction on the reactor is likely to commence in Sep, 2018. The plant proponent is expected to achieve the first power from the reactor in 2024. Subsequent to the trial runs, the reactor is expected to enter into commercial operation in Jun, 2024. Buy the profile here.


Saeul 4 is a Generation III+ nuclear reactor.

The 1,400MW reactor is currently owned and will be operated by Korea Hydro & Nuclear Power. The company has a stake of 100%.

Saeul 4 is a type of PWR reactor. It will feature 241 fuel assemblies in the core of reactor, the place where fission occurs and energy is released. The project cost is expected to be around $3,266.2m.

The material used for the construction of the vessel will be SA508, Grade 3, Class 1.

Development status

The reactor construction is expected to commence from Sep, 2018. Subsequent to that it will enter commercial operation by Jun, 2024.

Contractors Involved

Doosan Enerbility will be the steam turbine supplier for the nuclear reactor. Korea Engineering and Construction is expected to be the architect engineer for the reactor. The reactor system is likely to be supplied by Doosan Enerbility. The civil works will be carried out by Doosan Enerbility Co Ltd, SK Engineering & Construction Co Ltd, Samsung C&T Corp and Hanwha Engineering & Construction.

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


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.