Washington, D.C.

Washington, D.C., and its Maryland suburbs are connected to the high-voltage grid through Pepco, which was integrated into PJM’s operations in 1965.

Population of Washington, D.C.: 658,893*
Total Pepco customers: 815,000**
Total Pepco population served: 2.2 million**
Total amount of megawatt-hours used in Washington, D.C. (Pepco): 1,693,110***
Total amount of megawatt-hours used in Maryland suburbs (Pepco): 4,250,927***

Fun facts:

  • At 555 feet tall, the Washington Monument is the tallest structure in Washington, D.C. When it was completed in 1884, it was the tallest structure in the world.
  • Washington, D.C.’s energy use per capita is greater than nearly one-third of the states in the United States.
  • In 2014, 76 percent of retail electricity sales went to the commercial sector, which reflects on the city’s large group of government buildings and museums. Only 2 percent went to the industrial sector.
  • On Aug. 24, 1814, during the War of 1812, British troops occupied Washington, D.C., and set fire to a number of governmental buildings, including the White House and the Capitol building. The Burning of Washington was done in retaliation for a similar plundering by American troops in 1813 of the former city of York (now Toronto) in Canada.
  • While George Washington oversaw construction of the White House, he never lived in it. John and Abigail Adams were the first to live in the residents, though only for last four months of his presidency.

*2014 United States Census Bureau population estimate


***2013 Energy Information Administration data


Fun facts provided by Quirky Travel Guy, the History Channel, and The Energy Information Administration.