Timothy T. Mastrogiacomo represents and advises electric utilities, power suppliers, project developers and other electric industry clients in regulatory litigation and investigations before the Federal Energy Regulatory Commission (FERC). Mr. Mastrogiacomo has represented clients in rate proceedings, tariff disputes, interconnection and transmission disputes, merger applications and other matters involving the Federal Power Act. His experience includes representing clients in complaint proceedings, protested filings, settlement proceedings and at hearings before administrative law judges. Mr. Mastrogiacomo also represents and advises clients who are the subjects of non-public investigations by FERC’s Office of Enforcement. He has represented clients facing investigations involving various types of allegations, including energy market manipulation. Mr. Mastrogiacomo also has litigated trials in the Superior Court of the District of Columbia on behalf of pro bono clients.

Mr. Mastrogiacomo served as an officer in the Army National Guard and was the commander of the 276th Military Police Company as well as the 372nd Military Police Battalion Headquarters Detachment. He served as the commander of the CENTCOM Theater Field Confinement Facility during a deployment to Kuwait in 2015-16.



  • J.D., Georgetown University Law Center, 2011 (magna cum laude, Executive Editor of The Georgetown Law Journal)
  • B.A., Georgetown University, 2008 (magna cum laude)


  • District of Columbia

Timothy T. Mastrogiacomo

Associate, Energy Regulation and Litigation