OSLO (Reuters) – Another two-month delay at Finland’s Olkiluoto 3 nuclear reactor, which was originally due to start operations in 2009, poses a risk to power supply this winter in the absence of Russian imports, grid operator Fingrid said on Thursday. Test operations, suspended in April, will not restart until the end of July, operator Teollisuuden Voima (TVO) said late on Wednesday. Regular power production at the new 1.6 gigawatt (GW) reactor, which will account for some 15% of Finland’s electricity consumption when fully operational, will now start on Dec. 10 instead of Sept. 30 as previou…