Atrial tachycardia is a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.
Page Content. Northern Natural Gas Company (Northern) is a subsidiary of Berkshire Hathaway Energy based in Omaha, Nebraska and has been in business since 1930. Northern owns and operates the largest interstate natural gas pipeline system in the United States.
Exelon Corporation also owns Atlantic City Electric (ACE), Baltimore Gas and Electric Company (BGE), ComEd, Delmarva Power, PECO and Pepco energy companies. BGE Home Products & Services, LLC, is not the same company as BGE, the regulated utility.