Name of the Project
Olkiluoto (OL) 3 European pressurised reactor (EPR) project.

Location
Western Finland.

Client
Teollisuuden Voima Oyj (TVO).

Project Description
The project involves the construction of a nuclear power plant unit, OL3, that will include an EPR adjacent to the existing OL1 and OL2 units.

OL3 will have an output of about 1 600 MW.

Potential Job Creation
Not stated.

Value
The project is estimated at more than €3-billion.

Duration
Operations are expected to start in 2019.

Latest Developments
TVO has received an updated schedule for the commissioning of the OL3 EPR plant unit from the plant supplier Areva–Siemens Consortium. 

In April 2018, the plant supplier announced that it would update the schedule for completing the project since the hot functional tests and commissioning tests were delayed.

According to the plant supplier, fuel will be loaded into the reactor in January 2019, the plant unit will be connected to the national grid for the first time in May and regular electricity generation will start in September 2019. 

In accordance with the commissioning programme, the plant unit will produce 2 TWh to 4 TWh of electricity, at varying power levels, from the first connection to the grid and the start of regular electricity generation. According to the previous schedule, regular electricity production was planned to start in May 2019. The commissioning tests of OL3 EPR will last longer than planned. Completion of the hot functional test took 50 days longer than planned. Based on the findings of the commissioning tests, a comprehensive modification package will be implemented at OL3 over the next few months to update the plant’s electrical and instrumentation and control systems. After the modification works, the necessary parts of the commissioning tests will be repeated and commissioning will continue. 

Key Contracts and Suppliers
Areva–Siemens Consortium, comprising (plant supplier).

On Budget and on Time?
Areva is constructing the plant under a fixed-price turnkey contract. TVO selected EPR technology for OL3 in 2003 and AREVA-Siemens Consortium started the construction works in spring 2005 with an objective to start the electricity production in spring 2009.

Contact Details for Project Information
OL3 senior VP Jouni Silvennoinen, tel. +358 2 8381 4100.