Case Study 1: Covidien Distribution Facility

Large Facility with Sky Lights and Lights ON 24 Hours / Day  7 Days / Week
Short Staff 2nd and 3 Shifts

Problem: High Facility Lighting Costs

  • $321,432 / Year Cost of Electric for Lighting
  • 565 kW demand
  • 4,945,108 kWh/year consumption

Solution: Replace Inefficient HID Lighting System with Custom Designed High Bay Fluorescent Fixtures, Day Light Harvesting and Motion Sensors ($332,275 Total Turnkey Cost)

Results:  Dramatic Energy Savings of  $236,339/Year

During the Day the lights mostly stayed OFF using daylight harvesting sensors and
since sky lights provided most of the light and during 2 and 3 shifts the short staff did
not move around and most of the light stayed OFF due to the motion sensors

New Cost:

  • $85,093 / Year Electric Cost for Lighting
  • 73.5% reduction annual electric consumption for lighting
  • new demand = 221.5 kW
  • new consumption = 1,309,119 kWh/year
  • 71% ROI on investment


Case Study 2: Food Products Mfg. Facility

Problem: High Facility Lighting Costs

  • $136,720 / Electric Cost for Lighting
  • 192 kW average demand
  • 859,876 kWh/year consumption

Solution: Improve Inefficient Lighting System ($145,293 Total Turnkey Cost)

Results: Saved $84,275/Year

New Cost = $52,445 / Year for Electricity

  • 73.5% reduction annual electric for lighting
  • new demand = 95.3 kW
  • new consumption = 329.850 kWh/year
  • 76% ROI