As the Sept. 28 deadline approaches for Exelon and Pepco Holdings Inc. to appeal D.C. regulators’ rejection of their merger, Mayor Muriel Bowser is saying little to indicate how she feels about a second try by the companies to close the deal.

The D.C. Public Service Commission unanimously denied Exelon's proposed $6.8 billion acquisition of Pepco Holdings Inc., sparking applause in the hearing room and sending the shares of both companies tumbling on Wall Street.

The D.C. Public Service Commission will announce its decision on Exelon’s acquisition of Pepco Holdings Inc. at its open meeting 11 a.m. Tuesday.

The power outage that darkened the White House and much of D.C. on April 7 began with the failure of a 230-kV lightning arrester at a Pepco substation.

A Maryland circuit court judge Wednesday declined to stay Exelon's acquisition of Pepco Holdings Inc. while it considers an appeal from the state’s Office of People’s Counsel.

Exelon worked on several tracks, negotiating settlements with some of those who initially opposed the deal while working to undermine the arguments of those who remained in its way.

The Maryland Public Service Commission voted 3-2 to approve Exelon's controversial acquisition of Pepco Holdings Inc. Friday, saying Exelon's reputation for service excellence was the deciding factor.

Exelon said first-quarter profit exceeded expectations, in part due to strong performances by PECO, Baltimore Gas and Electric and Constellation Energy.

PJM planners have selected LS Power to build a new 230-kV transmission line from New Jersey’s Artificial Island to Delaware to address stability issues at the nuclear complex.

Supporters and critics of the takeover of Pepco by Exelon are churning out newspaper opinion pieces, resolutions and public relations campaigns as the last holdouts to the deal approach deadlines to render decisions.