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Title: Demonstration Assessment of Light-Emitting Diode Parking Structure Lighting at U.S. Department of Labor Headquarters

Demonstration Assessment of Light-Emitting Diode Parking Structure Lighting at U.S. Department of Labor Headquarters This report documents a solid-state lighting (SSL) technology demonstration at the parking structure of the U.S. Department of Labor (DOL) Headquarters in Washington, DC, in which light-emitting diode (LED) luminaires were substituted for the incumbent high-pressure sodium (HPS) luminaires and evaluated for relative light quantity and performance. The demonstration results show energy savings of 52% from the initial conversion of HPS to the LED product. These savings were increased to 88% by using occupancy sensor controls that were ultimately set to reduce power to 10% of high state operation after a time delay of 2.5 minutes. Because of the relatively high cost of the LED luminaires at their time of purchase for this project (2010), the simple payback periods were 6.5 years and 4.9 years for retrofit and new construction scenarios, respectively. Staff at DOL Headquarters reported high satisfaction with the operation of the LED product.
Authors: ;
Publication Date:
OSTI Identifier:1079130
Report Number(s):PNNL-22388
BT0301000
DOE Contract Number:AC05-76RL01830
Resource Type:Technical Report
Data Type:
Research Org:Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Org:USDOE
Country of Publication:United States
Language:English
Subject: solid-state lighting; LEDs; occupancy sensor controls; parking facility lighting