The Public Service Commission of the District of Columbia did not approve the merger between Pepco Holdings and Exelon Corporation on Aug. 25 by a unanimous vote.

According to the commission, the companies didn’t give any compelling reason as to why the merger needed to take place and the public, through various forms of correspondence and reports, was against it. A majority of the Advisory Neighborhood Commissions and six members of the D.C. Council, and the D.C. Attorney General Karl Racine expressed reservations with the merger.

Without the D.C. Commission’s approval, the entire merger, for the other jurisdictions that were already approved, including Maryland and New Jersey, are no longer valid.

Pepco has 30 days to submit an appeal against the Commission’s decision.