The Revolutionaries

Location: 
Raleigh, NC
Region: 
Southeast
Project: 
Davie Street lighting
Photos: 

"These new street lights will help to make our future a little brighter," said Progress Energy Carolinas CEO Lloyd Yates. "LED streetlights are an example of the kind of innovation that will be needed to help us achieve greater energy efficiency for our Carolinas customers now and in the years ahead."

Facts

  • Progress Energy Carolinas (PEC) installed nine LED test fixtures in October, 2008 on the 100 block of East Davie Street in downtown Raleigh in front of the Two Progress Plaza building and other businesses on this block.
  • Two 200-watt and seven 250-watt high pressure sodium (HPS) street light fixtures were removed and nine 167-watt LEDway fixtures from BetaLED were installed on a one-for-one replacement basis using the existing pole locations and mounting height.
  • Since the installation, PEC has observed the fixtures for proper operation. Light level (footcandle) readings were taken with the HPS and the LED fixtures and a point-by-point footcandle calculation has been prepared for the LED system.
  • 51% footcandle reduction measured at selected points on the street with LED lighting
  • 8% footcandle reduction measured at selected points on the sidewalks with LED lighting
  • 43% footcandle reduction as calculated on the entire street with LED lighting
  • 42% wattage reduction with LED lighting
  • Uniformity (average to minimum) improved per calculations with LED lighting