Presidium of the Supreme Arbitration Court of the Russian Federation by its decision of 9 October 2012 upheld the ruling of the Arbitration Court of the North-West district of December 19, 2011, confirming the legality and validity of the debt collection from OJSC “Tverenergosbyt” in the amount of 574 796 419,35 rubles in favour of IDGC of Centre for electricity transmission services and interest for using borrowed funds by the decision of the Common Court of Arbitration.