Return to ENERGY
Find More Facilities
ENERGY STAR Labeled Buildings & Plants
Facility Profile ENERGY STAR Logo

ENERGY STAR Labeled Building Profile

Oklahoma State Capitol
2300 N. Lincoln
Oklahoma City, OK 73105
Map It!


The Oklahoma State Capitol building, constructed in 1917, consists of more than 400,000 square feet and received its first major energy upgrade in the early 1990s with the installation of geothermal technology. More recent mechanical system and lighting efficiency projects have contributed greatly to reduced energy consumption in the Capitol. The building features T8 lighting in general office areas. The rotunda is lit with compact fluorescent lighting, and chandeliers use cold cathode bulbs. All parking areas feature LED technology lighting. At night, the dome is lit with LED panel boards, which are controlled by a state-of-the-art software package to maximize efficiency. Water conservation measures were also implemented, including the use of low-flow aerators, urinals, and toilets.

The Department of Central Services is proud to manage one of the most energy-efficient capitol buildings in the nation.





Please note: Narrative information in this profile has been provided by State of Oklahoma, Department of Central Services or a representative of this facility. Other building information was verified and submitted to EPA at the time of application. Building energy performance, operating characteristics, and ownership/management may be subject to change over time.

Building Owner:*
State of Oklahoma, Department of Central Services

Property Manager:*
State of Oklahoma, Office of Management and Enterprise Solutions

Year(s) Labeled (Rating):
2010 (88)
2011 (89)
2012 (93)

Facility Type: Courthouse

Total Floorspace: 452508 sf

Year Constructed: 1917

Contract Type: None

Technologies Used:
   Stage 2-Lighting
   Other Technologies/Strategies