Decisions, Decisions: Inform Your Lighting Choices

Transcription

1 Decisions, Decisions: Inform Your Lighting Choices Jason Zhang, P.Eng, LC BC Hydro Powersmart Engineering Brian Friedman, P.Eng, LC BC Hydro Powersmart Engineering

2 Why upgrade the lighting system? Modernize it Improve visual quality (color, appearance, light levels) Save energy Reduce maintenance costs Incentive from BC Hydro All or some of above

3 How will you achieve your goals? Consultant Vendor / manufacturer s representative Electrical contactor Look for good products on your own Whatever your choice, you have to ask appropriate questions to get optimal solutions. 3

4 Before you ask the appropriate questions, you have to know some lighting terminology 4

5 Some useful terminology Lamp (bulb) VS. Fixture (luminaire) Spectral Distribution CRI Colour Temperature Lumens Lux or Footcandles Lamp Lumen Depreciation Lamp Life Efficacy Efficiency 5

6 6 LED luminaires are made up of several parts LED chips Heat sink Driver Lens/optics Protective enclosure

7 7 LED Factors to be considered Color Temperature vs. Life vs Depreciation Efficacy verses Efficiency Protection from environment Performance Reference Resources

8 What are the appropriate questions and potential solutions? It depends on your application: Production/Warehouse area Administration and support areas Exterior parking and area lighting 8

9 For All Spaces Define the visual task Appropriate light level and light quality Define the budget Initial vs maintenance costs Access the fixtures Define the control strategies Switches, Occupancy sensors, daylight harvesting Understand technical limits of products Glare, Start-up time, Lamp life, Ambient temperature, Flicker, Inrush current, controllability Consider several potential solutions 9

10 Production/Warehouse Area Quality of light -SPECTRAL DISTRIBUTION -CRI -COLOUR TEMPERATURE Quantity of light -LUMENS -LUX or FOOTCANDLES Maintaining the light -LAMP LIFE -LAMP LUMEN DEPRECIATION Technical attributes -EFFICACY -EFFICIENCY Additional Considerations Consider both vertical and horizontal light levels Budget should include initial cost maintenance. Consider control strategies Recognize the limitations of the technology 10

11 Administration and support areas Quality of light -SPECTRAL DISTRIBUTION -CRI -COLOUR TEMPERATURE Quantity of light -LUMENS -LUX or FOOTCANDLES Maintaining the light -LAMP LIFE -LAMP LUMEN DEPRECIATION Technical attributes -EFFICACY -EFFICIENCY Additional Considerations Consider quality of the light Color temperature CRI Glare Consider Quantity of light ambient light Task light Consider control strategies 11

12 12 Exterior area lighting Parking lots Walkway Security Exterior production/storage/material handling

13 Exterior areas Quality of light -SPECTRAL DISTRIBUTION -CRI -COLOUR TEMPERATURE Quantity of light -LUMENS -LUX or FOOTCANDLES Maintaining the light -LAMP LIFE -LAMP LUMEN DEPRECIATION Additional Considerations Ambient Temperature Vertical light level and uniformity is important Match the budget Getting a lighting level simulation Technical attributes -EFFICACY -EFFICIENCY 13

14 For All Spaces Define the visual task Appropriate light level and light quality Define the budget Initial vs maintenance costs Access the fixtures Define the control strategies Switches, Occupancy sensors, daylight harvesting Understand technical attributes Glare, Flicker, Inrush current, Lamp life, Ambient temperature Consider several potential solutions 14

15 15 CASE STUDY BC Hydro Burrard Thermal From HPS to T5HO high bay Better visual quality Better controls options including 50% off Hardware savings: 529,000 kwh Controls savings: 110,000 kwh New luminaires and controls provide up to 75% savings

16 16 CASE STUDY Burnbrae Farms - Island egg-grading facility Change 400W MH to 250W Induction Add exterior Lighting controls Better visual quality for egg grading Hardware savings: 110,000 kwh Controls savings: 11,000 kwh Project saved $9,000/year.

17 CASE STUDY Seaspan Victoria Shipyards Change approx. 500 units 1000W HID to LED Change all hand-held 200 W incand. worklights to LED Hardware savings: 1,248,000 kwh No controls savings - 24/7 operation Better light, less heat and greater safety. Annual electrical savings of $400,000 17

18 18 CASE STUDY Helton Industries / Flexiforce Change MH to T5HO Change T12/T8 to T5HO and to High efficiency T8 (Over 800 lights were affected) Add occupancy sensors throughout Better visual quality $63,000 incentive Hardware savings: 280,000 kwh Controls savings: 103,000 kwh

19 Thank You! Jason Zhang, P.Eng, LC BC Hydro Powersmart Engineering Brian Friedman, P.Eng, LC BC Hydro Powersmart Engineering #psforum15