 About 2,300 Delmarva Power customers are without electricity this morning as the result of storms that rolled across the area Tuesday night, bringing a heavy load of lightning and downpours. In southeastern Pennsylvania, PECO is dealing with 65,000 customers without power. Parts of Glasgow and Newark received nearly two inches of rain during the night, while at Longwood in Chester County, 2.2 inches of rain fell, all of it in less than an hour.