The Capitol Power Plant jurisdiction manages the facilities that provide and distribute steam and chilled water to heat and cool the U.S. Capitol and 22 other facilities on and around the Capitol campus.

The jurisdiction also maintains the campus electrical distribution system, campus street lighting, the congressional cable television system and the legislative call system. The power plant operates on a reimbursable basis for noncongressional facilities and procures electricity from commercial suppliers.

Our Stories

Capitol Power Plant Work

Gary Bowser inspects a boiler fan to ensure that it is properly lubricated and that safety systems are working correctly.
Behind the Scenes

24 Hours at the Capitol Power Plant

The mission of the Architect of the Capitol (AOC) continues year-round, 24 hours a day, seven days a week. Our buildings never sleep, and the work never stops. This is especially true for the dedicated workers at the Capitol Power Plant.
Black and white photo of the Capitol Power Plant's interior.
History & Discoveries

Capitol Power Plant: A Century of Service

The Capitol Power Plant has undergone significant changes as new buildings were built, and more modern and efficient equipment was installed, but what hasn't changed is the commitment of the staff. The plant's staff are highly-skilled and extremely dedicated — many have worked there for decades.
A talented employee of an Architect of the Capitol sheet metal shop.

Expertise

Skillful Craftmanship

We serve in diverse roles applying both modern techniques and historical tradecrafts in the care and preservation of the Capitol campus.

Areas of Expertise