Major U.S. power provider Constellation Energy defended its planned acquisition of Calpine to regulators on Tuesday, after ...

A proposed multi-billion dollar energy deal is drawing scrutiny from consumer advocates.

Constellation produces electricity at power plants mainly in Maryland, Illinois, New York and Pennsylvania. Houston-based Calpine is the largest U.S. producer of energy from low-emission natural ...

Consumer advocate groups in Maryland and Pennsylvania have since filed protests ... Constellation (CEG), in a filing on Tuesday, said its deal with Calpine was not anticompetitive and asked ...

Constellation to acquire natural gas power giant Calpine for $26.6B, pending approval, with the deal expected to close by Jan ...

US energy provider Constellation Energy has defended its proposed acquisition of Calpine before regulators ... groups in the states of Maryland and Pennsylvania. The $16.4bn deal, announced ...