 For Pepco, which services many people in the D.C. region, they've seen delivery rates go up from 2.6 cents a kilowatt hour to 6.2 cents. Very substantial increase. On the flip side, Potomac Edison has increased mostly with inflation, Lapp said. So did Washington Gas. Though BGE Gas has tripled in cost since 2010, Lapp says the numbers show. We need to recognize that they are private companies with investors to please, and that requires effective regulation.