Gov. Martin O’Malley compared the reliability of Pepco’s electricity service to that of a developing nation in his most recent attack of the mammoth power supplier.

“This situation is totally unacceptable,” O’Malley wrote in his second letter to the Maryland Public Service Commission asking for an investigation into Pepco’s response time to power outages. “Power stays on more consistently in many developing nations than it does now in the communities surrounding our nation’s capital.”