" Construction of the 1.6 gigawatt (GW) reactor, Finland's first new nuclear plant in more than four decades and Europe's first in 16 years, began in 2005. The plant was originally due to open four years later, but was plagued by technical issues. " OL3 first supplied test production to Finland's national power grid in March last year and was expected at the time to begin regular output four months later, but instead suffered a string of breakdowns and outages that took months to fix.
The Olkiluoto 3 reactor, which has 1,600-megawatt capacity, was connected into the Finnish national power grid in March 2022 and kicked off regular production on Sunday. Operator Teollisuuden Voima, or TVO, tweeted that “Olkiluoto 3 is now ready”after a delay of 14 years from the original plan.
Experts have put Olkiluoto 3’s final price tag at around 11 billion euros ($12 billion) — almost three times what was initially estimated.
