(Reuters) - The French-German consortium Areva-Siemens, the supplier of Finland's much-delayed Olkiluoto-3 nuclear reactor, has increased its claim against Finnish utility Teollisuuden Voima (TVO), TVO said late on Friday.
TVO and Areva have traded accusations about who is to blame for delays and extra costs, and the International Chamber of Commerce's (ICC) arbitration court is processing a dispute on cost overruns between the two sides.
Areva-Siemens in September said the start date of the reactor, which is planned to be Finland's fifth and biggest nuclear unit, will be pushed back to late 2018 - almost a decade later than originally planned.