A deal to transfer Constellation Energy Group's stake in a nuclear development company to its French partner, EDF Group, closed Wednesday, according to documents filed Thursday with the Securities and Exchange Commission.
Last month, Constellation agreed to sell its 50 percent stake in Unistar Nuclear Energy to EDF for $140 million, giving EDF sole ownership of the joint venture and its plans to develop a third unit at Calvert Cliffs in Southern Maryland.


