Olkiluoto meaning

Olkiluoto is a shorthand used in energy, projects and nuclear regulatory practice to refer to the Olkiluoto nuclear power plant site in Finland, owned and operated by Teollisuuden Voima Oyj (TVO). The site comprises two operating boiling water reactors (OL1 and OL2) and Olkiluoto 3 (OL3), a Generation III+ EPR that entered commercial operation in April 2023 after a protracted construction phase. Proposals for a fourth unit (OL4) have been discontinued: TVO withdrew its construction licence application and the earlier decision-in-principle has lapsed. The term is not defined in legislation or case law; it is a descriptive reference used across multiple legal contexts. UK and Irish lawyers typically invoke “Olkiluoto” in analysing nuclear EPC/turnkey risk allocation, delay and cost overrun claims (including the TVO v Areva–Siemens ICC arbitration and 2018 settlement), licensing strategy, decommissioning and waste obligations, performance security, and project finance structures. It is frequently cited as a comparator for EPR projects such as Hinkley Point C and Sizewell C, particularly in relation to liquidated damages, parent company guarantees, supply-chain risk and regulatory interface management. Usage and meaning are consistent across England & Wales, Scotland, Northern Ireland and Ireland.