31 March 2008 - TransCanada Corporation (TSX, NYSE: TRP) (TransCanada) today announced that its subsidiary has agreed to acquire from National Grid plc (National Grid), all the outstanding membership interests of KeySpan-Ravenswood, LLC, that directly or indirectly owns or controls the 2,480 megawatt (MW) Ravenswood Generating Facility (Ravenswood) located in Queens, New York for US$2.8 billion plus closing adjustments.