The third reactor of the Olkiluoto nuclear power plant has been connected to the Finnish power grid and has started generating electricity with an output of 103 MW. During the approximately four-month test production phase, the OL3 plant unit’s power generation will be gradually ramped up to 1,600 MW; it should generate around 3-4 TWh during the test production phase, which corresponds with approximately 10% of Finland’s electricity demand. Regular electricity production is expected in July 2022.
Teollisuuden Voima Oyj (TVO) started up the project in December 2021. The OL-3 European Pressurized Reactor (EPR) project was built by a consortium of Areva GmbH, Areva NP (now Orano) and Siemens under a fixed-price turnkey contract. Construction started in 2005 for an expected commissioning in 2009. However, the project has been hit by repeated delays, rising costs (from an initial estimate of €3.2bn to around €11bn), and court disputes, and it should be commissioned over 12 years behind schedule.
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