There are 42,240 total lamps used for interior lighting within the Utah State Capitol of those 3,403 or only 8% are incandescent lamps. All other lamps 38,837 or 92% are energy-efficient lamps consisting of fluorescent, HID and LED.
The total interior Lighting Power Density is 0.98 watts/sf.
The allowable Lighting Power Density by code (ASHRAE 90.1-1999 or 2001) is 1.3 watts/sf.
This results in an improvement of 25% over and above the code requirement.