The Lloyd D. George Federal Building and U.S. Courthouse is the home for the district court in Las Vegas. It is managed by the General Services Administration (GSA). The GSA is the biggest property owner and lessee in the United States and has a building portfolio consisting of over 9,600 facilities, with a total combined floor area of approximately 370 million square feet, and over one million employees.
This project was part of a set of GSA buildings (included in the Buildings Database) that Lawrence Berkeley National Laboratory (LBNL) provided technical expertise for as part of the DOE Commercial Building Partnership program. The projects targeted lighting system retrofits, although some also included HVAC efficiency measures as well. The energy efficiency goals were looking at the set of projects versus the individual projects. Also please note that the retrofit measures are being applied to portions of the building versus the overall building. The projects were also part of the GSA Green Proving Ground project where technologies and energy efficiency strategies are implemented in projects and then monitored prior to implementing them into a larger portion of the GSA portfolio.
This project was a combination lighting and HVAC retrofit measures.
Lighting retrofit measures implemented for Daylit spaces (private offices and transition areas) — light levels maintained at 50 fc within an input power range of 20%-65%. Non-daylit spaces (private offices and transition areas) — light levels tuned to 50% input power. Occupancy-based control (with manual override in private offices).
HVAC retrofit measures implemented for Open office cubicles and private offices — occupancy-sensor controlled, demand-based VAV operation to ventilation airflow and reduce heating and cooling.