LED street lighting evaluation -- phase II : LED specification and life-cycle cost analysis.

Details

• Creators:
  Benekohal, Rahim F. ; Gregerson, Christopher ; Medina, Juan
• Corporate Creators:
  University of Illinois at Urbana-Champaign. Dept. of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration ; Illinois. Dept. of Transportation
• Subject/TRT Terms:
  Best Practices Evaluation Life Cycle Costing Light Emitting Diodes Luminaires Specifications State Departments Of Transportation Street Lighting
• Publication/ Report Number:
  FHWA-ICT-15-001
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  Phase II of this study focused on developing a draft specification for LED luminaires to be used by IDOT
  
  and a life-cycle cost analysis (LCCA) tool for solid state lighting technologies. The team also researched the
  
  latest developments related to dirt depreciation factors for LED luminaires and other general developments
  
  on solid state lighting. A final draft specification was developed that included best practices from states and
  
  cities that already had their own specification, as well as feedback from several state DOTs staff, a few
  
  experts in roadway lighting, and six LED luminaire manufacturers. This process is recommended for the
  
  development of future specifications. A spreadsheet to conduct LCCA based on net present value was also
  
  developed. The spreadsheet contains unit costs of typical items used in roadway lighting projects, and it is
  
  completely customizable by the user. The life-cycle cost of HPS, LED, plasma, and induction lighting
  
  designs can be compared side by side in the output table. There are significant trade-offs between larger
  
  initial investments for LED and lower maintenance/light consumption costs over the life of the project.
  
  Presently, LED lighting does not offer significant cost advantages over other technologies used in highway
  
  lighting in most of the four scenarios analyzed. However, assuming re-lamping and re-ballasting cycles of 4
  
  years for HPS, and a cost of $845 per LED luminaire (half of current cost reported by IDOT), HPS and LED
  
  produced the most economical lighting solutions with the exception of the conventional interchange project
  
  in which LED was 8.3% more expensive than HPS. Ongoing dirt depreciation research and trends in the
  
  lighting industry, such as adaptive lighting, should be monitored to take advantage of developments and to
  
  ensure that the most qualified products are specified and purchased. In addition to LCCA, other factors may
  
  also be considered in deciding which type of luminaires to use.
  
  
• Format:
  PDF
• Funding:
  ICT-15-001 ; UILU-ENG-2015-2001
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:96553ec53c1ba21a0929e561fa313d775a7276be32de33bef1751887c55d6737
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28524/dot_28524_DS1.pdf
• File Type:
  [PDF - 4.58 MB ]