HELSINKI, March 31 : AI infrastructure firm Nebius Group on Tuesday said it was continuing its rapid European expansion with a 310-megawatt data centre in Finland, which would be one of the continent's largest with an estimated value of more than $10 billion as demand for AI computing grows. The Amsterdam-based company said capacity at its 10th site, which Finnish developer Polarnode is already building in Lappeenranta near Finland's eastern border with Russia, is due to come online in phases